WIPER, WASHER & HORN SECTION WW CONTENTS K ELECTRICAL WW-1

Transcription

1 WIPER, WSHER & HORN K ELECTRICL SECTION WW WIPER, WSHER & HORN C D CONTENTS E PRECUTION... 3 Precautions for Supplemental Restraint System (SRS) IR G and SET ELT PRE-TEN- SIONER... 3 Precautions for Procedures without Cowl Top Cover... 3 Precautions for attery Service... 3 RONT WIPER ND WSHER SYSTEM... 4 Components Parts and Harness Connector Location... 4 System Description... 4 OUT LINE... 4 LOW SPEED WIPER OPERTION... 5 HIGH SPEED WIPER OPERTION... 5 INTERMITTENT OPERTION... 5 UTO STOP OPERTION... 6 WSHER OPERTION... 6 MIST OPERTION... 7 IL-SE UNCTION... 7 COMINTION SWITCH REDING UNCTION... 7 CN Communication System Description... 9 CN Communication Unit... 9 Schematic Wiring Diagram WIPER...11 Terminals and Reference Values for CM Terminals and Reference Values for IPDM E/R How to Proceed With Trouble Diagnosis Preliminary Check CHECK POWER SUPPLY ND GROUND CIR- CUIT CONSULT-III unction (CM) WORK SUPPORT DT MONITOR CTIVE TEST CONSULT-III unction (IPDM E/R) DT MONITOR CTIVE TEST ront Wiper Does Not Operate ront Wiper Does Not Return to Stop Position Only ront Wiper Low Does Not Operate Only ront Wiper Hi Does Not Operate Only ront Wiper Intermittent Does Not Operate ront Wiper Interval Time Is Not Controlled by Vehicle Speed ront Wiper Intermittent Operation Switch Position Cannot e djusted Wiper Does Not Wipe When ront Washer Operates fter ront Wiper Operate for 10 Seconds, They Stop for 20 Seconds, and fter Repeating the Operations ive Times, They ecome Inoperative ront Wiper Does Not Stop Removal and Installation of ront Wiper rms, djustment of Wiper rms Stop Location REMOVL INSTLLTION Removal and Installation of ront Wiper Drive ssembly REMOVL INSTLLTION Disassembly and ssembly ront Wiper Motor and Linkage DISSSEMLY SSEMLY Washer Nozzle djustment Washer Tube Layout Removal and Installation of ront Washer Nozzle Removal and Installation of ront Washer Tube Joint REMOVL INSTLLTION Inspection for Washer Nozzle CHECK VLVE INSPECTION Inspection of ront Wiper and Washer Switch Circuit Removal and Installation of ront Wiper and Washer Switch REMOVL INSTLLTION Removal and Installation of Washer Tank REMOVL G H I J WW L M WW-1

2 INSTLLTION Removal and Installation of Washer Pump REMOVL INSTLLTION RER WIPER ND WSHER SYSTEM Components Parts and Harness Connector Location System Description OUT LINE CM WIPER SWITCH REDING UNCTION Wiring Diagram WIP/ R Terminals and Reference Values for CM How to Proceed With Trouble Diagnosis Preliminary Check CHECK POWER SUPPLY ND GROUND CIR- CUIT CONSULT-III unction (CM) DT MONITOR CTIVE TEST Rear Wiper Does Not Operate Rear Wiper Does Not Return to Stop Position Only Rear Wiper ON Does Not Operate Only Rear Wiper INT Does Not Operate Wiper Does Not Wipe When Rear Washer Operates Rear Wiper Does Not Stop Removal and Installation of Rear Wiper rm, djustment of Wiper rms Stop Location REMOVL INSTLLTION Removal and Installation of Rear Wiper Motor REMOVL...48 INSTLLTION...48 Washer Nozzle djustment...48 Washer Tube Layout...49 Removal and Installation of Rear Washer Nozzle...49 REMOVL...49 INSTLLTION...49 Inspection for Washer Nozzle...49 CHECK VLVE INSPECTION...49 Inspection of Rear Wiper and Washer Switch Circuit...49 Removal and Installation of Rear Wiper and Washer Switch...49 Removal and Installation of Washer Tank...50 Removal and Installation of Washer Pump...50 POWER SOCKET...51 Wiring Diagram P/SCKT...51 Removal and Installation (Luggage loor inisher Lower)...52 REMOVL...52 INSTLLTION...52 Removal and Installation (Instrument Passenger Panel Lower)...52 REMOVL...52 INSTLLTION...52 HORN...53 Wiring Diagram HORN...53 Removal and Installation...54 REMOVL...54 INSTLLTION...54 WW-2

3 PRECUTION PRECUTION PP:00011 Precautions for Supplemental Restraint System (SRS) IR G and SET ELT PRE-TENSIONER NKS00544 The Supplemental Restraint System such as IR G and SET ELT PRE-TENSIONER, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted. Information necessary to service the system safely is included in the SRS and S section of this Service Manual. WRNING: To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSN/ININITI dealer. Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. or removal of Spiral Cable and ir ag Module, see the SRS section. Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors. Precautions for Procedures without Cowl Top Cover When performing the procedure after removing cowl top cover, cover the lower end of windshield with urethane, etc. NKS00545 C D E G H I J Precautions for attery Service PII3706J efore disconnecting the battery, lower both the driver and passenger windows. This will prevent any interference between the window edge and the vehicle when the door is opened/closed. During normal operation, the window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic window function will not work with the battery disconnected. NKS00546 WW L M WW-3

4 RONT WIPER ND WSHER SYSTEM RONT WIPER ND WSHER SYSTEM Components Parts and Harness Connector Location PP:28810 NKS0051Z System Description ll front wiper relays (HI, LO) are included in IPDM E/R (intelligent power distribution module engine room). Wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input terminals. Terminal combination status is read by CM (body control module) when switch is turned ON. CM controls front wiper LO, HI, and INT (intermittent) operation. IPDM E/R operates wiper motor according to CN communication signals from CM. OUT LINE Power is supplied at all times to ignition relay, located in IPDM E/R, from battery direct through 40 fusible link [letter, located in fuse, fusible link and relay box] to CM terminal 55, through 10 fuse [No.18 located in fuse block (J/)] to CM terminal 42, through 30 fuse [No.73 located in IPDM E/R] to front wiper relay, located in IPDM E/R, through 15 fuse [No.78 located in IPDM E/R] to CPU (central processing unit) located in IPDM E/R, through 10 fuse [No.71 located in IPDM E/R] to CPU located in IPDM E/R. When ignition switch is in ON or STRT position, power is supplied to ignition relay, located in IPDM E/R, through 10 fuse [No.1 located in fuse block (J/)] to CM terminal 38, through ignition relay, located in IPDM E/R to front wiper relay, located in IPDM E/R to front wiper high relay, located in IPDM E/R to CPU located in IPDM E/R, through 10 fuse [No.84 located in IPDM E/R] through IPDM E/R terminal 44 WW-4 PKID0828E NKS00520

5 RONT WIPER ND WSHER SYSTEM to front washer pump terminal 2. Ground is supplied to CM terminal 52 through grounds M30 and M66, to IPDM E/R terminals 38 and 60 through grounds E17, E43 and 102 (with VDC system, navigation system or telephone), through grounds E17, E43 and 152 (without VDC system, navigation system and telephone), to combination switch terminal 12 through grounds M30 and M66. LOW SPEED WIPER OPERTION When the front wiper switch is in low position, CM detects low speed wiper ON signal by CM wiper switch reading function. CM sends front wiper request signal (LOW) with CN communication line from CM terminals 39 and 40 to IPDM E/R terminals 48 and 49. When the IPDM E/R receives front wiper request signal (LOW), it turns ON front wiper relay, located in the IPDM E/R, power is supplied to front wiper motor terminal 3 through IPDM E/R terminal 21 and front wiper high relay and front wiper relay. Ground is supplied to front wiper motor terminal 4 through grounds E17, E43 and 102 (with VDC system, navigation system or telephone), through grounds E17, E43 and 152 (without VDC system, navigation system and telephone). With power and ground is supplied, front wiper motor operates at low speed. HIGH SPEED WIPER OPERTION When the front wiper switch is in high position, CM detects high speed wiper ON signal by CM wiper switch reading function. CM sends front wiper request signal (HI) with CN communication line from CM terminals 39 and 40 to IPDM E/R terminals 48 and 49. When the IPDM E/R receives front wiper request signal (HI), it turns ON front wiper relay, located in IPDM E/ R, power is supplied to front wiper motor terminal 2 through IPDM E/R terminal 31 and front wiper high relay and front wiper relay. Ground is supplied to front wiper motor terminal 4 through grounds E17, E43 and 102 (with VDC system, navigation system or telephone), through grounds E17, E43 and 152 (without VDC system, navigation system and telephone). With power and ground is supplied, front wiper motor operates at high speed. INTERMITTENT OPERTION ront wiper intermittent operation delay interval is determined from a combination of 3 switches (intermittent operation dial position 1, 2, and 3) and vehicle speed signal. fter each intermittent operation delay interval, CM sends front wiper request signal to IPDM E/R. C D E G H I J WW L M WW-5

6 Wiper Dial Position Setting Wiper dial position RONT WIPER ND WSHER SYSTEM Intermittent operation interval Intermittent operation dial position 1 Combination switch Intermittent operation dial position 2 Intermittent operation dial position Short ON ON ON ON ON O 3 ON O O 4 O O O 5 O O ON 6 O ON ON 7 Long O ON O Example: or wiper dial position 1 Using combination switch reading function, CM detects ON/O status of intermittent operation dial positions 1, 2, and 3. When combination switch status is as listed below, CM determines that it is wiper dial position 1. Intermittent operation dial position 1: ON (Continuity exists between combination switch output 3 and input 1.) Intermittent operation dial position 2: ON (Continuity exists between combination switch output 5 and input 1.) Intermittent operation dial position 3: ON (Continuity exists between combination switch output 4 and input 2.) CM determines front wiper intermittent operation delay interval from wiper dial position 1 and vehicle speed, and sends wiper request signal (INT) to IPDM E/R. UTO STOP OPERTION With wiper switch turned O, wiper motor will continue to operate until wiper arms reach windshield base. When the wiper arms are not located at base of windshield with wiper switch O, ground is provided from IPDM E/R terminal 21 to front wiper motor terminal 3, in order to continue wiper motor operation at low speed When the wiper arms reach base of windshield, front wiper motor terminals 1 and 4 are connected, and ground is supplied to IPDM E/R terminal 32 through front wiper motor terminals 1 and 4 through grounds E17, E43 and 102 (with VDC system, navigation system or telephone), through grounds E17, E43 and 152 (without VDC system, navigation system and telephone). Then the IPDM E/R sends auto stop operation signal to CM with CN communication. When the CM receives auto stop operation signal, CM sends wiper stop signal to IPDM E/R with CN communication line. IPDM E/R stops wiper motor. Wiper motor will then stop wiper arms at the STOP position. WSHER OPERTION When the wiper switch is in front wiper washer position, CM detect front wiper washer signal by CM wiper switch reading function (Refer to WW-7, "COMINTION SWITCH REDING UNCTION" ). Combination switch ground is supplied to front washer pump terminal 1 through combination switch terminal 11 to combination switch terminal 12 through grounds M30 and M66. With ground is supplied, front washer pump is operated. When the CM detects that front washer pump has operated for 0.4 seconds or longer, CM operates front wiper motor for low speed. When the CM detects washer switch is O, low speed operation cycles approximately 2 times and stops. WW-6

7 RONT WIPER ND WSHER SYSTEM MIST OPERTION When the wiper switch is turned to the mist position, wiper low speed operation cycles once and then stops. or additional information about wiper operation under this condition, refer to WW-5, "LOW SPEED WIPER OPERTION". If switch is held in mist position, low speed operation continues. IL-SE UNCTION If an abnormality occurs in CN communications, IPDM E/R holds the condition just before fail-safe status is initiated until ignition switch is turned off. (If wipers were operating in LO just before the initiation of fail-safe status, they continue to operate in LO until ignition switch is turned O) COMINTION SWITCH REDING UNCTION Description CM reads combination switch (wiper) status, and controls related systems such as headlamps and wipers, according to the results. CM reads information of a maximum of 20 switches by combining five output terminals (OUTPUT 1-5) and five input terminals (INPUT 1-5). Operation Description CM activates transistors of output terminals (OUTPUT 1-5) periodically, and allows current to flow in turn. If any (1 or more) switches are turned ON, circuit of output terminals (OUTPUT 1-5) and input terminals (INPUT 1-5) becomes active. t this time, transistors of output terminals (OUTPUT 1-5) are activated to allow current to flow. When voltage of input terminals (INPUT 1-5) corresponding to that switch changes, interface in CM detects voltage change, and CM determines that switch is ON. C D E G H I J WW L M PKIC4861E WW-7

8 RONT WIPER ND WSHER SYSTEM CM - Operation Table of Combination Switches CM reads operation status of combination switch using combinations shown in table below. Sample Operation: (When Wiper Switch Turned to LOW Position) PKIC4963E When wiper switch is turned to LOW position, front wiper LOW contact in combination switch turns ON. t this time if OUTPUT 1 transistor is activated, CM detects that voltage changes in INPUT 3. When CM detects that voltage changes in INPUT 3 while OUTPUT 1 transistor is ON, it judges that front wiper switch is in LOW position. Then CM sends front wiper request signal (LO) to IPDM E/R using CN communication. If CM detects that voltage changes in INPUT 3 when OUTPUT 1 transistor is activated again, it recognizes that wiper switch is still in LOW position. PKIC4862E WW-8

9 RONT WIPER ND WSHER SYSTEM NOTE: Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore after switch is turned ON, electrical loads are activated with time delay. ut this time delay is so short that it cannot be detected by human senses. Operation Mode The combination switch reading function has the operation modes shown below. 1. Normal status When CM is not in sleep status, OUTPUT terminals (1-5) each turn ON-O every 10 ms. 2. Sleep status When CM is in sleep status CM enters low power mode. OUTPUT (1-5) turn ON-O every 60 ms, and only input from light switch system is accepted. C D E G H I J WW L CN Communication System Description CN (Controller rea Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CN communication, control units are connected with 2 communication lines (CN H line, CN L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only. CN Communication Unit Refer to LN-48, "CN System Specification Chart". PKIC4919E NKS00521 NKS00522 M WW-9

10 RONT WIPER ND WSHER SYSTEM Schematic NKS00523 TKWT4003E WW-10

11 RONT WIPER ND WSHER SYSTEM Wiring Diagram WIPER NKS00524 C D E G H I J WW L M TKWT5737E WW-11

12 RONT WIPER ND WSHER SYSTEM TKWT5738E WW-12

13 RONT WIPER ND WSHER SYSTEM C D E G H I J WW L M TKWT4006E WW-13

14 RONT WIPER ND WSHER SYSTEM Terminals and Reference Values for CM CUTION: Check combination switch system terminal waveform under the loaded condition with lighting switch, turn signal switch and wiper switch O not to be fluctuated by overloaded. Turn wiper dial position to 4 except when checking waveform or voltage of wiper dial position. Wiper dial position can be confirmed on CONSULT-III. Refer to WW-19, "DT MONITOR". NKS00525 Terminal No. Wire color Signal name Ignition switch Measuring condition Operation or condition Reference value O pprox. 0 V 4 PU/W Combination switch input 3 ON Lighting, turn, wiper switch (Wiper intermittent dial position 4) ny of the conditions below ront wiper switch MIST ront wiper switch INT ront wiper switch LO pprox. 1.0 V PKI4959J O (Wiper intermittent dial position 4) pprox. 0 V 5 Y/R Combination switch input 2 ON Lighting, turn, wiper switch ny of the conditions below ront washer switch Wiper intermittent dial position 1 Wiper intermittent dial position 5 Wiper intermittent dial position 6 pprox. 1.0 V PKI4959J WW-14

15 RONT WIPER ND WSHER SYSTEM Terminal No. Wire color Signal name Ignition switch Measuring condition Operation or condition Reference value O (Wiper intermittent dial position 4) pprox. 0 V ny of the conditions below ront wiper switch HI C Wiper intermittent dial position 3 D pprox. 1.0 V PKI4959J E 6 Y/G Combination switch input 1 ON Lighting, turn, wiper switch ny of the conditions below Wiper intermittent dial position 1 Wiper intermittent dial position 2 pprox. 1.7 V PKI4952J G H ny of the conditions below Wiper intermittent dial position 6 Wiper intermittent dial position 7 I pprox. 0.8 V PKI4955J J WW O (Wiper intermittent dial position 4) L 32 G/ Combination switch output 5 ON Lighting, turn, wiper switch pprox. 7.2 V PKI4960J M ny of the conditions below Wiper intermittent dial position 1 Wiper intermittent dial position 2 Wiper intermittent dial position 6 Wiper intermittent dial position 7 pprox. 1.0 V PKI4956J WW-15

16 RONT WIPER ND WSHER SYSTEM Terminal No. Wire color Signal name Ignition switch Measuring condition Operation or condition Reference value O (Wiper intermittent dial position 4) 33 G Combination switch output 4 ON Lighting, turn, wiper switch pprox. 7.2 V PKI4960J ny of the conditions below Wiper intermittent dial position 1 Wiper intermittent dial position 5 Wiper intermittent dial position 6 pprox. 1.2 V PKI4958J O (Wiper intermittent dial position 4) 34 W/L Combination switch output 3 ON Lighting, turn, wiper switch pprox. 7.2 V PKI4960J ny of the conditions below Wiper intermittent dial position 1 Wiper intermittent dial position 2 Wiper intermittent dial position 3 pprox. 1.2 V PKI4958J O 35 W/G Combination switch output 2 ON Lighting, turn, wiper switch (Wiper intermittent dial position 4) pprox. 7.2 V PKI4960J ny of the conditions below ront wiper switch INT ront wiper switch HI pprox. 1.2 V PKI4958J WW-16

17 RONT WIPER ND WSHER SYSTEM Terminal No. Wire color Signal name Ignition switch Measuring condition Operation or condition Reference value O C 36 W/R Combination switch output 1 ON Lighting, turn, wiper switch (Wiper intermittent dial position 4) pprox. 7.2 V PKI4960J D ny of the conditions below E ront wiper switch MIST ront wiper switch LO ront washer switch 38 W/L Ignition switch (ON) pprox. 1.2 V ON attery voltage PKI4958J G 39 L CN H 40 P CN L 42 GY attery power supply O attery voltage 52 Ground ON pprox. 0 V 55 R attery power supply O attery voltage Terminals and Reference Values for IPDM E/R NKS00526 H I J Terminal No. Wire color Signal name Ignition switch Measuring condition Operation or condition Reference value WW 21 L Low speed signal ON Wiper switch O LOW pprox. 0 V attery voltage L 31 L/ High speed signal ON Wiper switch O HI pprox. 0 V attery voltage M 32 L/Y Wiper auto stop signal ON Wiper operating Wiper stopped attery voltage pprox. 0 V 38 Ground ON pprox. 0 V 44 OR Washer pump power supply ON attery voltage 48 L CN H 49 P CN L 60 Ground ON pprox. 0 V How to Proceed With Trouble Diagnosis 1. Confirm the symptoms and customer complaint. 2. Understand operation description and function description. Refer to WW-4, "System Description". 3. Perform preliminary check. Refer to WW-18, "Preliminary Check". 4. Check symptom and repair or replace the cause of malfunction. 5. Does the front wiper and washer operate normally? If YES, GO TO 6. If NO, GO TO 4. NKS00527 WW-17

18 RONT WIPER ND WSHER SYSTEM 6. INSPECTION END Preliminary Check CHECK POWER SUPPLY ND GROUND CIRCUIT 1. CHECK USES ND USILE LINK NKS00528 Check for blown fuses and fusible link. Unit Power source use and fusible link No. ront washer pump Ignition switch ON or STRT 84 ront wiper motor, front wiper relay, front wiper HI relay attery 73 CM Refer to WW-11, "Wiring Diagram WIPER ". OK >> GO TO 2 NG >> If fuse is blown, be sure to eliminate the cause of malfunction before installing new fuse, Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT". 2. CHECK POWER SUPPLY CIRCUIT 1. Turn ignition switch O. 2. Disconnect CM connector. 3. Check voltage between CM harness connector terminal and ground. attery 18 Ignition switch ON or STRT 1 Terminals Ignition switch position (+) CM (-) O ON Terminal connector M90 38 pprox. 0 V attery voltage 42 Ground attery voltage attery voltage M91 55 attery voltage attery voltage OK >> GO TO 3. NG >> Repair harness or connector. 3. CHECK GROUND CIRCUIT PKI5199E Check continuity between CM harness connector and ground. CM Terminal Continuity connector Ground M91 52 Yes OK >> INSPECTION END NG >> Repair harness or connector. PKI5198E WW-18

19 RONT WIPER ND WSHER SYSTEM CONSULT-III unction (CM) CONSULT-III can display each diagnostic item using the diagnostic test mode shown following. CM diagnosis position Diagnosis mode Description WIPER CM WORK SUPPORT Display Item List WORK SUPPORT DT MONITOR CTIVE TEST SEL-DIG RESULTS CN DIG SUPPORT MNTR Changes the setting for each function. Displays CM input data in real time. Device operation can be checked by applying a drive signal to device. NOTE: Regarding wiper speed setting, if the CM set value is initialized by the use of CONSULT-III work support, then set it individually to O after the initialization because it is automatically set to ON by initializing CON- SULT-III. DT MONITOR Display Item List NKS00529 CM performs self-diagnosis of CN communication. The result of transmit/receive diagnosis of CN communication can be read. Item Description CONSULT-III actory setting WIPER SPEED SETTING IGN ON SW Vehicle speed sousing type wiper control mode can be changed in this mode. Vehicle speed sousing type wiper control mode between two ON/O. Monitor item ON/O Contents ON O Displays ignition switch ON (ON)/Other O or CC (O) status as judged from ignition switch signal. IGN SW CN ON/O Displays ignition switch ON (ON)/Other O or CC (O) status as judged from CN communication signal. R WIPER HI ON/O Displays RONT WIPER HI (ON)/Other (O) status as judged from wiper switch signal. R WIPER LOW ON/O Displays RONT WIPER LOW (ON)/Other (O) status as judged from wiper switch signal. R WIPER INT ON/O Displays RONT WIPER INT (ON)/Other (O) status as judged from wiper switch signal. R WSHER SW ON/O Displays RONT WSHER Switch (ON)/Other (O) status as judged from wiper switch signal. INT VOLUME 1-7 Displays intermittent operation dial position setting (1-7) as judged from wiper switch signal. R WIPER STOP ON/O Displays Stopped (ON)/Operating (O) status as judged from auto-stop signal. VEHICLE SPEED km/h Displays vehicle speed status as judged from vehicle speed signal. RR WIPER ON NOTE 1 ON/O Displays Rear Wiper ON (ON)/Other (O) status as judged from wiper switch signal. RR WIPER INT NOTE 1 ON/O Displays Rear Wiper INT (ON)/Other (O) status as judged from wiper switch signal. C D E G H I J WW L M RR WSHER SW NOTE 1 ON/O Displays Rear Washer Switch (ON)/Other (O) status as judged from wiper switch signal. RR WIPER STOP NOTE 1 ON/O Displays Rear Wiper Stop (ON)/Other (O) status, as judged from wiper switch signal. RR WIPER STP2 NOTE 2 O NOTE: 1. Coupe models 2. This item is displayed, but cannot be monitored. CTIVE TEST Display Item List Test item Display on CONSULT-III screen Description ront wiper output R WIPER With a certain operation (O, HI, LO, INT), front wiper can be operated. Rear wiper output NOTE RR WIPER Rear wiper can be operated by ON O operation. WW-19

20 RONT WIPER ND WSHER SYSTEM NOTE: Coupe models CONSULT-III unction (IPDM E/R) CONSULT-III can display each diagnostic item using the diagnostic test mode shown following. Diagnosis Mode Description SEL DIG RESULTS Refer to PG-18, "SEL-DIG RESULTS". DT MONITOR The input/output data of IPDM E/R is displayed in real time. CN DIG SUPPORT MNTR The result of transmit/receive diagnosis of CN communication can be read. CTIVE TEST IPDM E/R sends a drive signal to electronic components to check their operation. NKS0052 DT MONITOR ll Signals, Main Signals, Selection rom Menu Item name CONSULT-III screen display Display or unit LL SIGNLS Monitor item selection MIN SIGNLS SELECTION ROM MENU Description R wiper request R WIP REQ STOP/LOW/HI Signal status input from CM Wiper auto stop WIP UTO STOP CT P/STOP P Output status of IPDM E/R Wiper protection WIP PROT O/lock Control status of IPDM E/R NOTE: Perform monitoring of IPDM E/R data with ignition switch ON. When ignition switch is at CC, the display may not be correct. CTIVE TEST Display Item List Test item CONSULT-III screen display Description ront wiper (HI, LO) output R WIPER With a certain operation (O, HI ON, LO ON), front wiper relay (and/or front wiper high relay) can be operated. WW-20

21 RONT WIPER ND WSHER SYSTEM ront Wiper Does Not Operate CUTION: During IPDM E/R fail-safe control, front wipers may not operate. Refer to PG-16, "CN COMMUNIC- TION LINE CONTROL" in PG IPDM E/R to make sure that it is not in fail-safe status. 1. CTIVE TEST CONSULT-III CTIVE TEST 1. Select "RONT WIPER" of IPDM E/R active test item. 2. With operating the test item, check that front wiper LO and HI operation. IPDM E/R UTO CTIVE TEST 1. Start up auto active test. Refer to PG-20, "uto ctive Test". 2. With operating the test item, check that front wiper LO and HI operation. Does front wiper operate normally? YES >> GO TO 5. NO >> GO TO CHECK RONT WIPER CIRCUIT 1. Turn ignition switch O. 2. Disconnect IPDM E/R connector and front wiper motor connector. 3. Check continuity between IPDM E/R harness connector () and front wiper motor harness connector (). NKS0052 C D E G H Connector Terminal Connector Terminal E E Check continuity between IPDM E/R harness connector () and Ground. Continuity Yes SKI7682E I J Connector E7 Terminal OK >> GO TO 3. NG >> Repair harness or connector. 3. CHECK GROUND CIRCUIT Ground Continuity No WW L M Check continuity between front wiper motor harness connector and ground. ront wiper motor Terminal Continuity connector Ground E52 4 Yes OK >> GO TO 4. NG >> Repair harness or connector. SKI7683E WW-21

22 RONT WIPER ND WSHER SYSTEM 4. CHECK IPDM E/R CONSULT-III CTIVE TEST 1. Connect IPDM E/R connector and front wiper motor connector. 2. Select "RONT WIPER" of IPDM E/R active test item. 3. With operating the test item, check voltage between IPDM E/R harness connector and ground. IPDM E/R connector E7 (+) Terminals Terminal (-) Ground Condition Voltage (pprox.) Stopped 0 V LO operation attery voltage Stopped 0 V HI operation attery voltage IPDM E/R UTO CTIVE TEST 1. Connect IPDM E/R connector and front wiper motor connector. 2. Start up auto active test. Refer to PG-20, "uto ctive Test". 3. With operating the test item, check voltage between IPDM E/R harness connector and ground. SKI5298E IPDM E/R connector E7 (+) Terminals Terminal (-) Ground Condition Voltage (pprox.) Stopped 0 V LO operation attery voltage Stopped 0 V HI operation attery voltage OK >> Replace front wiper motor. Refer to WW-31, "Disassembly and ssembly ront Wiper Motor and Linkage". NG >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R". 5. CHECK CIRCUIT ETWEEN COMINTION SWITCH ND CM CONSULT-III DT MONITOR 1. Select R WIPER INT, R WIPER LOW, and R WIPER HI of CM data monitor item. 2. With operating the wiper switch, check the monitor status. CHECK COMINTION SWITCH Refer to LT-92, "Combination Switch Inspection". OK >> GO TO 6. NG >> Check combination switch (wiper switch). Refer to LT-92, "Combination Switch Inspection". 6. CHECKING CN COMMUNICTIONS ETWEEN CM ND IPDM E/R Perform self-diagnosis for CM with CONSULT-III. Display of self-diagnosis results NO DTC>> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R". CN COMM CIRCUIT>> Refer to CS-16, "CN Communication Inspection Using CONSULT-III (Self-Diagnosis)". WW-22

23 RONT WIPER ND WSHER SYSTEM ront Wiper Does Not Return to Stop Position 1. CHECK RONT WIPER STOP SIGNL With CONSULT-III 1. Select "WIP UTO STOP" of IPDM E/R data monitor item. 2. Make sure that WIP UTO STOP turns CT P - STOP P linked with wiper operation. GO TO 2 OK >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R". NG >> GO TO CHECK IPDM E/R 1. Turn ignition switch O. 2. Disconnect front wiper motor connector. 3. Turn ignition switch ON. 4. Check voltage between front wiper motor harness connector and ground. Terminals (+) (-) Voltage (pprox.) ront wiper motor Terminal connector Ground E52 1 attery voltage OK >> GO TO 4. NG >> GO TO CHECK RONT WIPER UTO STOP CIRCUIT 1. Turn ignition switch O. 2. Disconnect IPDM E/R connector. 3. Check continuity between IPDM E/R harness connector () and front wiper motor harness connector (). Continuity Connector Terminal Connector Terminal E7 32 E52 1 Yes 4. Check continuity between IPDM E/R harness connector () and ground. Continuity Connector Terminal Ground E7 32 Yes OK >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R". NG >> Repair harness or connector. NKS0052C SKI7684E SKI7685E C D E G H I J WW L M WW-23

24 RONT WIPER ND WSHER SYSTEM 4. CHECK IPDM E/R 1. Connect IPDM E/R connector and front wiper motor connector. 2. Turn ignition switch ON. 3. Check voltage between IPDM E/R harness connector and ground while front wiper motor is stopped and while it is operating. IPDM E/R connector (+) Terminal Terminal OK >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R". NG >> Replace front wiper motor. Refer to WW-31, "Disassembly and ssembly ront Wiper Motor and Linkage". Only ront Wiper Low Does Not Operate 1. CTIVE TEST (-) E7 32 Ground Condition Wiper stopped Wiper operating Voltage (pprox.) 0 V attery voltage CONSULT-III CTIVE TEST 1. Select "RONT WIPER" of IPDM E/R active test item. 2. With operating the test item, check that front wiper LO operation. IPDM E/R UTO CTIVE TEST 1. Start up auto active test. Refer to PG-20, "uto ctive Test". 2. With operating the test item, check that front wiper LO operation. Does front wiper operate normally? YES >> Refer to LT-92, "Combination Switch Inspection". NO >> GO TO CHECK RONT WIPER MOTOR CIRCUIT 1. Turn ignition switch O. 2. Disconnect IPDM E/R connector and front wiper motor connector. 3. Check continuity between IPDM E/R harness connector () and front wiper motor harness connector (). SKI5303E NKS0052D Continuity Connector Terminal Connector Terminal E7 21 E52 3 Yes 4. Check continuity between IPDM E/R harness connector () and ground. SKI7686E Continuity Connector Terminal Ground E7 21 No OK >> GO TO 3. NG >> Repair harness or connector. WW-24

25 RONT WIPER ND WSHER SYSTEM 3. CHECK IPDM E/R CONSULT-III CTIVE TEST 1. Connect IPDM E/R connector and front wiper motor connector. 2. Select "RONT WIPER" of IPDM E/R active test item. 3. With operating the test item, check that front wiper LO operation. IPDM E/R connector Terminals (+) (-) Voltage (pprox.) Terminal Ground E7 21 attery voltage IPDM E/R UTO CTIVE TEST 1. Connect IPDM E/R connector and front wiper motor connector. 2. Start up auto active test. Refer to PG-20, "uto ctive Test". 3. With operating the test item, check that front wiper LO operation. SKI9167E C D E IPDM E/R connector OK >> Replace front wiper motor. Refer to WW-31, "Disassembly and ssembly ront Wiper Motor and Linkage". NG >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R". Only ront Wiper Hi Does Not Operate 1. CTIVE TEST Terminals (+) (-) Voltage (pprox.) Terminal Ground E7 21 attery voltage CONSULT-III CTIVE TEST 1. Select "RONT WIPER" of IPDM E/R active test item. 2. With operating the test item, check that front wiper HI operation. IPDM E/R UTO CTIVE TEST 1. Start up auto active test. Refer to PG-20, "uto ctive Test" 2. With operating the test item, check that front wiper HI operation. Does front wiper operate normally? YES >> Refer to LT-92, "Combination Switch Inspection". NO >> GO TO 2. NKS0052E G H I J WW L M WW-25

26 RONT WIPER ND WSHER SYSTEM 2. CHECK RONT WIPER MOTOR CIRCUIT 1. Turn ignition switch O. 2. Disconnect IPDM E/R connector and front wiper motor connector. 3. Check continuity between IPDM E/R harness connector () and front wiper motor harness connector (). Continuity Connector Terminal Connector Terminal E7 31 E52 2 Yes 4. Check continuity between IPDM E/R harness connector () and ground. SKI7687E Continuity Connector Terminal Ground E7 31 No OK >> GO TO 3. NG >> Repair harness or connector. 3. CHECK IPDM E/R CONSULT-III CTIVE TEST 1. Connect IPDM E/R connector and front wiper motor connector. 2. Select "RONT WIPER" of IPDM E/R active test item. 3. With operating the test item, check voltage between IPDM E/R harness connector and ground. IPDM E/R connector Terminals (+) (-) Voltage (pprox.) Terminal Ground E7 31 attery voltage IPDM E/R UTO CTIVE TEST 1. Connect IPDM E/R connector and front wiper motor connector. 2. Start up auto active test. Refer to PG-20, "uto ctive Test". 3. With operating the test item, check voltage between IPDM E/R harness connector and ground. SKI5306E IPDM E/R connector Terminals (+) (-) Voltage (pprox.) Terminal Ground E7 31 attery voltage OK >> Replace front wiper motor. Refer to WW-31, "Disassembly and ssembly ront Wiper Motor and Linkage". NG >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R". WW-26

27 RONT WIPER ND WSHER SYSTEM Only ront Wiper Intermittent Does Not Operate 1. CHECK COMINTION SWITCH NKS0052 CONSULT-III DT MONITOR 1. Select "R WIPER INT" of CM data monitor item. 2. With operating the wiper switch, check the monitor status. CHECK COMINTION SWITCH Refer to LT-92, "Combination Switch Inspection". OK >> Replace CM. Refer to CS-17, "Removal and Installation of CM". NG >> Check combination switch (wiper switch) Refer to LT-92, "Combination Switch Inspection". ront Wiper Interval Time Is Not Controlled by Vehicle Speed 1. CHECK UNCTION O COMINTION METER Confirm that speedometer operates normally. Does front wiper operate normally? YES >> GO TO 2. NO >> Combination meter vehicle speed system malfunction. Refer to DI-18, "Vehicle Speed Signal Inspection". 2. CHECK CN COMMUNICTION ETWEEN CM ND COMINTION METER Perform self-diagnosis for CM with CONSULT-III. Displayed self-diagnosis results NO DTC>>Replace CM. Refer to CS-17, "Removal and Installation of CM". CN COMM CIRCUIT>>Check CN communication line of CM. Refer to CS-16, "CN Communication Inspection Using CONSULT-III (Self-Diagnosis)". ront Wiper Intermittent Operation Switch Position Cannot e djusted 1. CHECK CIRCUIT ETWEEN COMINTION SWITCH ND CM CONSULT-III DT MONITOR 1. Select "INT VOLUME" of CM data monitor item. 2. Make sure that INT VOLUME, changes in order form 1 to 7 according to wiper switch operation. CHECK COMINTION SWITCH Refer to LT-92, "Combination Switch Inspection". OK >> Replace CM. Refer to CS-17, "Removal and Installation of CM". NG >> Check combination switch (wiper switch). Refer to LT-92, "Combination Switch Inspection". Wiper Does Not Wipe When ront Washer Operates 1. CHECK CIRCUIT ETWEEN COMINTION SWITCH ND CM NKS0052G NKS0052H NKS0052I C D E G H I J WW L M CONSULT-III DT MONITOR 1. Select "R WSHER SW" of CM data monitor item. 2. Make sure that R WSHER SW turn ON-O according to front wiper switch operation. CHECK COMINTION SWITCH Refer to LT-92, "Combination Switch Inspection". OK >> Replace CM. Refer to CS-17, "Removal and Installation of CM". NG >> Check front wiper switch. Refer to LT-92, "Combination Switch Inspection". WW-27

28 RONT WIPER ND WSHER SYSTEM fter ront Wiper Operate for 10 Seconds, They Stop for 20 Seconds, and fter Repeating the Operations ive Times, They ecome Inoperative NKS0052J CUTION: When auto-stop signal has not varied for 10 seconds or longer while IPDM E/R is operating front wipers, IPDM E/R considers that front wipers are locked, and stops wiper output. That causes this symptom. This status can be checked by DT MONITOR of IPDM E/R on which WIPER PROTECTION item shows LOCK. 1. CHECK WIPER MOTOR SIGNL CONSULT-III DT MONITOR 1. Select "WIP UTO STOP" of CM data monitor item. 2. make sure that WIP UTO STOP turns CT P - STOP P linked with wiper operation. GO TO 2 OK >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R". NG >> GO TO CHECK WIPER UTO STOP CIRCUIT 1. Turn ignition switch O. 2. Disconnect IPDM E/R connector and front wiper motor connector. 3. Check continuity between IPDM E/R harness connector () and front wiper motor harness connector (). Continuity Connector Terminal Connector Terminal E7 32 E52 1 Yes 4. Check continuity between IPDM E/R harness connector () and ground. SKI7688E Continuity Connector Terminal Ground E7 32 No OK >> GO TO 3. NG >> Repair harness or connector. WW-28

29 RONT WIPER ND WSHER SYSTEM 3. CHECK RONT WIPER MOTOR 1. Connect IPDM E/R connector and front wiper motor connector. 2. Turn ignition switch ON. 3. Check voltage between IPDM E/R harness connector and ground while front wiper motor is stopped and while it is operating. IPDM E/R connector (+) Terminal Terminal OK >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R". NG >> Replace front wiper motor. Refer to WW-31, "Disassembly and ssembly ront Wiper Motor and Linkage". ront Wiper Does Not Stop (-) E7 32 Ground Condition Voltage (pprox.) Wiper stopped 0 V Wiper operating attery voltage 1. CHECK CIRCUIT ETWEEN COMINTION SWITCH ND CM SKI5303E CONSULT-III DT MONITOR 1. Select R WIPER INT, R WIPER LOW, R WIPER HI, and R WSHER SW of CM data monitor item. 2. With operating the wiper switch, check the monitor status. CHECK COMINTION SWITCH Refer to LT-92, "Combination Switch Inspection". OK >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R". NG >> Check combination switch (wiper switch). Refer to LT-92, "Combination Switch Inspection". NKS0052K C D E G H I J WW L M WW-29

30 RONT WIPER ND WSHER SYSTEM Removal and Installation of ront Wiper rms, djustment of Wiper rms Stop Location REMOVL 1. Turn front wiper switch ON to operate wiper motor, and then turn front wiper switch O (auto stop). 2. Remove washer tube from washer tube joint. 3. Open hood, remove front wiper arm caps, and remove front wiper arm nuts. 4. Raise front wiper arms, and remove front wiper arms from vehicle. INSTLLTION 1. Clean up the pivot area as shown in the figure. This will reduce possibility of front wiper arm looseness. 2. Prior to front wiper arms installation, turn front wiper switch ON to operate wiper motor, and then turn front wiper switch O (auto stop). NKS0052L SEL024J 3. Lift the blade up and then set it down onto windshield glass surface to set the blade center to clearance L1 & L2 immediately. 4. Tighten front wiper arm nuts to specified torque. ront wiper arm nuts : 23.6 N m (2.4 kg-m, 18 ft-lb) 5. Install washer tube from washer tube joint. 6. Spray washer fluid. Turn front wiper switch ON to operate wiper motor, and then turn front wiper switch O (auto stop). 7. Make sure that wiper blades stop within clearance L1 & L2. Clearance L1 Clearance L2 8. Install front wiper arm caps. : 63.9 ± 7.5 mm (2.516 ± in) : 32.0 ± 6.5 mm (1.260 ± in) Removal and Installation of ront Wiper Drive ssembly REMOVL 1. Remove front wiper arms. Refer to WW-30, "REMOVL". 2. Remove cowl top cover. Refer to EI-20, "COWL TOP". 3. Disconnect wiper motor connector (1) and remove connector clip (). 4. Remove front wiper drive assembly mounting bolts (), and remove front wiper drive assembly (2) from the vehicle. PKI9951E NKS0052M INSTLLTION 1. Install front wiper drive assembly to the vehicle. ront wiper drive assembly mounting bolts : 4.5 N m (0.46 kg-m, 40 in-lb) SKI7455E 2. Connect wiper motor connector. Turn front wiper switch ON to operate wiper motor, and then turn front wiper switch O (auto stop). 3. Install connector clips to the wiper frame, and install cowl top cover. Refer to EI-20, "COWL TOP". WW-30

31 RONT WIPER ND WSHER SYSTEM 4. Install front wiper arms and arm caps. Refer to WW-30, "INSTLLTION". Disassembly and ssembly ront Wiper Motor and Linkage NKS0052N C D E 1. Wiper linkage 1 2. Wiper linkage 2 3. Motor frame 4. Wiper motor 5. Motor arm nut 6. Motor arm 7. Wiper motor mounting bolt :N m (kg-m, in-lb) :N m (kg-m, ft-lb) :Should be lubricated with grease PKIC4863E G H I DISSSEMLY 1. Remove wiper linkages from wiper motor and motor frame. 2. Remove wiper motor mounting bolts, and remove wiper motor from wiper frame. CUTION: e careful not to bend wiper linkages nor to damage the resin part of ball joint when removing wiper linkages. SSEMLY 1. Connect wiper motor connector. Turn front wiper switch ON to operate wiper motor, and then turn front wiper switch O (auto stop). 2. Disconnect wiper motor connector. 3. Install wiper motor to wiper frame. Wiper motor mounting bolts : 4.5 N m (0.46 kg-m, 40 in-lb) J WW L M 4. Install wiper linkages to wiper frame and wiper motor. CUTION: Never drop the wiper motor nor cause it to interfere with other parts. Check joint of motor arm and wiper linkages (at retainer) for grease conditions. pply grease if necessary. WW-31

32 Washer Nozzle djustment RONT WIPER ND WSHER SYSTEM 1. When wiper blade position is in auto stop condition, remove front wiper motor connector to ensure front wiper arms do not move. 2. djust each nozzle position (,, E,, and G) so that spray positions are in the range of shaded parts. CUTION: Only washer nozzles (,, E,, and G) can be adjusted. Washer nozzles (C, D, H, I, and J) cannot be adjusted because of fixed nozzles. NKS0052O PKI1781E WW-32

33 RONT WIPER ND WSHER SYSTEM Washer Tube Layout NKS0052P C D E Removal and Installation of ront Washer Nozzle Replace wiper arm assembly. Refer to WW-30, "Removal and Installation of ront Wiper rms, djustment of Wiper rms Stop Location". CUTION: Never remove/install washer nozzle from wiper arm assembly. Removal and Installation of ront Washer Tube Joint REMOVL 1. Remove upwards while pressing pawls on reverse side. 2. Remove washer tube. PKI1899E NKS0052Q NKS0052R G H I J WW L INSTLLTION Installation is the reverse order of removal. Inspection for Washer Nozzle CHECK VLVE INSPECTION low air in the injection direction, and check that air flows only one way. Make sure that the reverse direction (inhale) is not possible. PKI1159E NKS0052S M PKI1160E WW-33

34 RONT WIPER ND WSHER SYSTEM Inspection of ront Wiper and Washer Switch Circuit Refer to LT-92, "Combination Switch Inspection". Removal and Installation of ront Wiper and Washer Switch REMOVL 1. Remove steering column lower cover and combination meter. Refer to IP-10, "INSTRUMENT PNEL SSEMLY". 2. Disconnect wiper and washer switch connector. 3. Pull wiper and washer switch toward the passenger door while pressing pawls in direction shown by the arrow ( ) in the figure, and remove it from the base. NKS0052T NKS0052U INSTLLTION Installation is the reverse order of removal. Removal and Installation of Washer Tank REMOVL 1. Remove clip and pull out washer tank inlet. PKI4999E NKS0052V PKI1903E 2. Remove under cover. 3. Remove fender protector. Refer to EI-21, "ENDER PROTEC- TOR". 4. Remove front bumper fascia. Refer to EI-14, "RONT UMPER". 5. Disconnect washer pump connector. 6. Remove washer tank mounting bolt and nuts. PKI1791E 7. Remove washer tube, and remove washer tank from the vehicle. PKI3704E WW-34

35 RONT WIPER ND WSHER SYSTEM INSTLLTION Installation is the reverse order of removal. CUTION: fter installation, add water up to the upper level of washer tank inlet, and check for water leaks. Washer tank mounting bolt and nuts : 5.7 N m (0.58 kg-m, 50 in-lb) Removal and Installation of Washer Pump REMOVL 1. Remove fender protector. Refer to EI-21, "ENDER PROTEC- TOR". 2. Disconnect washer pump connector and remove washer tube. 3. Pull out washer pump in direction shown by the arrow ( ) in the figure. Remove washer pump from washer tank. NKS0052W C D E INSTLLTION Installation is the reverse order of removal. CUTION: When installing washer pump, there should be no packing twists, etc. PKI3705E G H I J WW L M WW-35

36 RER WIPER ND WSHER SYSTEM RER WIPER ND WSHER SYSTEM Components Parts and Harness Connector Location PP:28710 NKS0052X System Description PKI2147E Wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input terminals. Terminal combination status is read by CM when switch is turned ON. CM (body control module) controls rear wiper ON and INT (intermittent) operation. OUT LINE Power is supplied at all times through 40 fusible link (letter, located in fuse, fusible link and relay box) to CM terminal 55, through 10 fuse [No. 18, located in fuse block (J/)] to CM terminal 42. When ignition switch is in ON or STRT position, power is supplied through 10 fuse [No. 1, located in fuse block (J/)] to CM terminal 38, through 10 fuse (No. 84, located in IPDM E/R) through IPDM E/R terminal 44 to rear washer pump terminal 2. Ground is supplied to CM terminal 52 through grounds M30 and M66, NKS0052Y WW-36

37 RER WIPER ND WSHER SYSTEM to combination switch terminal 12 through grounds M30 and M66. Rear Wiper Operation When wiper switch is in rear wiper ON position, CM detect rear wiper ON signal by CM wiper switch reading function. CM operate rear wiper motor, power is supplied through CM terminal 70 to rear wiper motor 4. Ground is supplied to rear wiper motor terminal 1 through grounds 5, 6, D105 and T14. With power and ground is supplied, rear wiper operates. Intermittent Operation The rear wiper motor operates wiper arms at low speed approximately every 7 seconds. When wiper switch is in rear wiper INT position, CM detect rear wiper INT signal by CM wiper switch reading function. (Refer to WW-7, "COMINTION SWITCH REDING UNCTION" ) CM operate rear wiper motor, power is supplied through CM terminal 70 to rear wiper motor 4. Ground is supplied to rear wiper motor terminal 1 through grounds 5, 6, D105 and T14. With power and ground is supplied, rear wiper operates at intermittent. uto Stop Operation With rear wiper switch turned O, rear wiper motor will continue to operate until wiper arm reaches rear wiper stopper. Then wiper motor turns the other way and wiper arm moves once until wiper arm reaches stopper. Washer Operation When wiper switch is in rear wiper washer position, CM detect rear wiper washer signal by CM wiper switch reading function (Refer to WW-7, "COMINTION SWITCH REDING UNCTION" ), and combination switch (wiper switch) ground is supplied to rear washer pump terminal 1 through combination switch terminal 13 to combination switch terminal 12 through grounds M30 and M66. With ground is supplied, rear washer pump is operated. When CM detects that rear washer pump has operated for 0.4 seconds or longer, CM operates rear wiper motor low speed. When CM detects washer switch is O, low speed operation cycles approximately 3 times and then stops. CM WIPER SWITCH REDING UNCTION Refer to WW-7, "COMINTION SWITCH REDING UNCTION". C D E G H I J WW L M WW-37

38 RER WIPER ND WSHER SYSTEM Wiring Diagram WIP/ R NKS0052Z TKWT5739E WW-38

39 RER WIPER ND WSHER SYSTEM C D E G H I J WW L M TKWT4008E WW-39

40 RER WIPER ND WSHER SYSTEM Terminals and Reference Values for CM CUTION: Check combination switch system terminal waveform under the loaded condition with lighting switch, turn signal switch and wiper switch O not to be fluctuated by overloaded. Turn wiper dial position to 4 except when checking waveform or voltage of wiper dial position. Wiper dial position can be confirmed on CONSULT-III. Refer to WW-43, "DT MONITOR". NKS00530 Terminal No. Wire color Signal name Ignition switch Measuring condition Operation or condition Reference value O pprox. 0 V Rear washer switch 5 Y/R Combination switch input 2 ON Lighting, turn, wiper switch (Wiper intermittent dial position 4) pprox. 1.0 V PKI4959J Rear wiper switch ON O pprox. 0.8 v pprox. 0 V PKI4955J 6 Y/G Combination switch input 1 ON Lighting, turn, wiper switch (Wiper intermittent dial position 4) Rear wiper switch INT pprox. 1.0 V PKI4959J O 33 G Combination switch output 4 ON Lighting, turn, wiper switch (Wiper intermittent dial position 4) pprox. 7.2 V PKI4960J Rear wiper switch INT pprox. 1.2 V PKI4958J WW-40

41 RER WIPER ND WSHER SYSTEM Terminal No. Wire color Signal name Ignition switch Measuring condition Operation or condition Reference value O C 34 W/L Combination switch output 3 ON Lighting, turn, wiper switch (Wiper intermittent dial position 4) pprox. 7.2 V PKI4960J D E Rear washer switch 38 W/L Ignition switch (ON) pprox. 1.2 V ON attery voltage PKI4958J G 39 L CN H 40 P CN L 42 GY attery power supply O attery voltage 52 Ground ON pprox. 0 V 55 R 59 OR 70 S attery power supply Rear wiper auto stop signal Rear wiper motor output signal How to Proceed With Trouble Diagnosis O attery voltage ON ON Rear wiper operates Rear wiper does not operate Rear wiper operates Rear wiper does not operate pprox. 0 V attery voltage attery voltage pprox. 0 V 1. Confirm the symptoms and customer complaint. 2. Understand operation description and function description. Refer to WW-36, "System Description". 3. Perform preliminary check. Refer to WW-42, "Preliminary Check". 4. Check symptom and repair or replace the cause of malfunction. 5. Does rear wiper and washer operate normally? If YES, GO TO 6. If NO, GO TO INSPECTION END NKS00531 H I J WW L M WW-41