POWER CONTROL SYSTEM SECTION PCS CONTENTS ELECTRICAL & POWER CONTROL PCS-1 IPDM E/R PRECAUTION... 3 ECU DIAGNOSIS INFORMATION...16 WIRING DIAGRAM...

Transcription

1 TR & WR TR ST WR TR SYSTM TTS M /R RUT... 3 RUTS... 3 recaution for Supplemental Restraint System (SRS) "R " and "ST T R-T- SR"...3 recaution ecessary for Steering Wheel Rotation after attery isconnect...3 recaution for rocedure without owl Top over...4 SYSTM SRT... 5 MT RTS... 5 M /R...5 M /R : omponent arts ocation...5 SYSTM... 6 RY TR SYSTM...6 RY TR SYSTM : System iagram...6 RY TR SYSTM : System escription...6 RY TR SYSTM : ail-safe...7 WR TR SYSTM...9 WR TR SYSTM : System iagram...9 WR TR SYSTM : System escription...9 S UR SYSTM...9 S UR SYSTM : System iagram...9 S UR SYSTM : System escription...9 WR SUMT TR SYSTM...9 WR SUMT TR SYSTM : System iagram...10 WR SUMT TR SYSTM : System escription...10 SS SYSTM (M /R)...11 iagnosis escription...11 SUT- unction (M /R)...13 U SS RMT...16 M /R...16 Reference Value...16 ail-safe...23 T ndex...24 WR RM...26 M /R...26 Wiring iagram...26 T/RUT SS...29 U1000 MM RUT...29 escription...29 T ogic...29 iagnosis rocedure T RY STU...30 escription...30 T ogic...30 iagnosis rocedure T RY STU...31 escription...31 T ogic...31 iagnosis rocedure...31 WR SUY RU RUT...32 iagnosis rocedure...32 RMV STT...33 M /R...33 xploded View...33 Removal and nstallation...33 WR STRUT SYSTM RUT

2 RUTS recaution for Supplemental Restraint System (SRS) "R " and "ST T R-T- SR" recaution ecessary for Steering Wheel Rotation after attery isconnect SYSTM SRT MT RTS omponent arts ocation omponent escription M gnition Relay ccessory Relay lower Relay ush-utton gnition Switch SYSTM WR STRUT SYSTM WR STRUT SYSTM : System iagram WR STRUT SYSTM : System escription ail-safe SS SYSTM (M) MM TM MM TM : SUT- unction (M - MM TM) TT Y TT Y : SUT- unction (M - TT Y) U SS RMT M ist of U Reference WR RM WR STRUT SYSTM Wiring iagram S ST SS RR WR W Work low T/RUT SS RY RUT T ogic iagnosis rocedure omponent nspection WR RY RUT T ogic iagnosis rocedure omponent nspection T RY RUT T ogic iagnosis rocedure omponent nspection M T ogic iagnosis rocedure US-UTT T SWT T ogic iagnosis rocedure T RY T ogic iagnosis rocedure T RY T ogic iagnosis rocedure M T ogic iagnosis rocedure US-UTT T SWT omponent unction heck iagnosis rocedure omponent nspection US-UTT T SWT S- T TR escription omponent unction heck iagnosis rocedure SYMTM SS US-UTT T SWT S T RT escription iagnosis rocedure US-UTT T SWT S- T TR S T UMT escription iagnosis rocedure RMV STT US-UTT T SWT Removal and nstallation

3 < RUT > RUT RUTS RUTS [M /R] recaution for Supplemental Restraint System (SRS) "R " and "ST T R-TSR" : The Supplemental Restraint System such as R and ST T R-TSR, 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. nformation necessary to service the system safely is included in the SRS R and ST T of this Service Manual. WR: To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision that would result in air bag inflation, all maintenance must be performed by an authorized SS/T dealer. mproper 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 able and ir ag Module, see the SRS R. o 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. RUTS W US WR TS (R R TR) MMRS WR: When working near the ir ag iagnosis Sensor Unit or other ir ag System sensors with the ignition or engine running, T use air or electric power tools or strike near the sensor(s) with a hammer. eavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury. When using air or electric power tools or hammers, always switch the ignition, disconnect the battery, and wait at least 3 minutes before performing any service. recaution ecessary for Steering Wheel Rotation after attery isconnect : T: efore removing and installing any control units, first turn the push-button ignition switch to the position, then disconnect both battery cables. fter finishing work, confirm that all control unit connectors are connected properly, then re-connect both battery cables. lways use SUT- to perform self-diagnosis as a part of each function inspection after finishing work. f a T is detected, perform trouble diagnosis according to self-diagnosis results. or vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and cannot be turned. f turning the steering wheel is required with the battery disconnected or discharged, follow the operation procedure below before starting the repair operation. RT RUR 1. onnect both battery cables. T: Supply power using jumper cables if battery is discharged. 2. Turn the push-button ignition switch to position. (t this time, the steering lock will be released.) 3. isconnect both battery cables. The steering lock will remain released with both battery cables disconnected and the steering wheel can be turned. 4. erform the necessary repair operation. -3

4 < RUT > RUTS [M /R] 5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn the push-button ignition switch from position to position, then to position. (The steering wheel will lock when the push-button ignition switch is turned to position.) 6. erform self-diagnosis check of all control units using SUT-. recaution for rocedure without owl Top over When performing the procedure after removing cowl top cover, cover the lower end of windshield with urethane, etc. :

5 < SYSTM SRT > SYSTM SRT MT RTS M /R M /R : omponent arts ocation MT RTS [M /R] : M /R. ngine room dash panel (R) MM0369ZZ -5

6 < SYSTM SRT > SYSTM RY TR SYSTM SYSTM RY TR SYSTM : System iagram [M /R] : MM0373 RY TR SYSTM : System escription : M /R activates the internal control circuit to perform the relay - control according to the input signals from various sensors and the request signals received from control units via communication. UT: M /R integrated relays cannot be removed. -6

7 < SYSTM SRT > SYSTM [M /R] ontrol relay nput/output Transmit unit ontrol part Reference page eadlamp low relay T: M controls the starter relay. ow beam request signal aytime running light request signal RY TR SYSTM : ail-safe : MMUT TR When communication with M and M is impossible, M /R performs fail-safe control. fter communication recovers normally, it also returns to normal control. f o ommunication s vailable With M M () eadlamp () X-11 eadlamp high relay igh beam request signal M () eadlamp () ront fog lamp relay ront fog light request signal M () ront fog lamp X-19 Tail lamp relay osition light request signal M () llumination X-20 ront wiper main relay ront wiper / relay orn relay Vehicle security horn relay Starter relay T Starter control relay Steering lock relay / relay gnition relay aytime running light relay ooling fan ontrol part ront wiper request signal ront wiper position signal Theft warning horn request signal orn reminder signal Starter control relay signal Steering lock unit condition signal Starter relay control signal Steering lock relay signal Steering lock unit condition signal /T shift selector (etention switch) signal / compressor request signal gnition switch signal Vehicle speed signal ush-button ignition switch signal aytime running light request signal osition light request signal M () ront wiper motor M () M () Steering lock unit TM M () Steering lock unit /T shift selector (etention switch) M () M () ombination meter () ush-button ignition switch M () ront wiper motor orn (high) Vehicle security horn Starter motor ail-safe operation Steering lock unit / compressor (magnet clutch) ach control unit, sensor, actuator and relay (ignition power supply) arking lamp icense plate lamp Tail lamp Side marker lamp WW-7 S-18 S-10 S-10 S (with orest ir) -30 (without orest ir) -37 X-16 utputs the pulse duty signal (WM signal) 100% when the ignition switch is turned utputs the pulse duty signal (WM signal) 0% when the ignition switch is turned / compressor / relay lternator utputs the power generation command signal (WM signal) 0% f o ommunication s vailable With M -7

8 < SYSTM SRT > SYSTM [M /R] eadlamp ontrol part arking lamp icense plate lamp llumination Tail lamp Side marker lamp ront wiper motor ront fog lamp orn gnition relay Starter motor Steering lock unit ail-safe operation Turns the headlamp low relay when the ignition switch is turned Turns the headlamp low relay when the ignition switch is turned eadlamp high relay Turns the tail lamp relay and daytime running light relay when the ignition switch is turned Turns the tail lamp relay and daytime running light relay when the ignition switch is turned The status just before activation of fail-safe control is maintained until the ignition switch is turned while the front wiper is operating at or speed. The wiper is operated at speed until the ignition switch is turned if the fail-safe control is activated while the front wiper is set in the UT mode and the front wiper motor is operating. Returns automatically wiper to stop position when ignition switch is turned if fail-safe control is activated while front wiper motor is operated and wiper stop in the other than stop position. ront fog lamp relay orn The status just before activation of fail-safe is maintained. Starter control relay Steering lock relay T RY MUT TT UT M /R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it. M /R judges the ignition relay error if the voltage differs between the contact circuit and the excitation coil circuit. f the ignition relay cannot turn due to contact seizure, it activates the tail lamp relay and daytime running light relay for 10 minutes to alert the user to the ignition relay malfunction when the ignition switch is turned. Voltage judgment gnition relay contact side gnition relay excitation M /R judgment peration coil side gnition relay normal gnition relay normal gnition relay stuck etects T 2098: RY Turns the tail lamp relay and daytime running light relay for 10 minutes gnition relay stuck RT WR RTT UT M /R detects front wiper stop position by a front wiper stop position signal. When a front wiper stop position signal is in the conditions listed below, M /R stops power supply to wiper after repeating a front wiper 10 seconds activation and 20 seconds stop five times. gnition switch ront wiper switch ront wiper stop position signal T: This operation status can be confirmed on the M /R ata Monitor that displays for the item W RT while the wiper is stopped. STRTR MTR RTT UT -8 etects T 2099: RY The front wiper stop position signal (stop position) cannot be input for 10 seconds. The front wiper stop position signal does not change for 10 seconds.

9 < SYSTM SRT > SYSTM [M /R] M /R turns the starter control relay to protect the starter motor when the starter control relay remains active for 90 seconds. WR TR SYSTM WR TR SYSTM : System iagram : SM0004 WR TR SYSTM : System escription : TR M /R outputs pulse duty signal (WM signal) to the cooling fan control module according to the status of the cooling fan speed request signal received from M via communication. Refer to -50, " TR : System iagram" (VQ37VR) or -575, " TR : System iagram" (V56V). TRTR TR M /R outputs power generation command signal (WM signal) to the alternator according to the status of the power generation command value signal received from M via communication. Refer to -8, "WR RT VT VR TR SYSTM : System iagram". S UR SYSTM S UR SYSTM : System iagram : M0952 S UR SYSTM : System escription : M /R reads the status of the oil pressure switch and transmits the oil pressure switch signal to M via communication (only for models with VQ37VR engine). Refer to MW-15, " RSSUR WR- M : System iagram". M /R reads the status of the hood switch and transmits the hood switch signal to M via communication. Refer to S-10, "ood Switch". M /R receives the rear window defogger control signal from M via communication and transmits it to M and V control unit via communication. Refer to -6, "System iagram". WR SUMT TR SYSTM -9

10 < SYSTM SRT > SYSTM WR SUMT TR SYSTM : System iagram [M /R] : MM0427 WR SUMT TR SYSTM : System escription : UT M /R incorporates a power consumption control function that reduces the power consumption according to the vehicle status. M /R changes its status (control mode) with the sleep wake up signal received from M via communication. ormal mode (wake-up) - communication is normally performed with other control units. - ndividual unit control by M /R is normally performed. ow power consumption mode (sleep) - ow power consumption control is active. - transmission is stopped. S M TVT M /R judges that the sleep-ready conditions are fulfilled when the ignition switch is and none of the conditions below are present. Then it transmits a sleep-ready signal (ready) to M via communication. - utputting signals to actuators - Switches or relays operating - ood switch status is kept 50 ms or less. - utput requests are being received from control units via communication. M /R stops communication and enters the low power consumption mode when it receives a sleep wake up signal (sleep) from M and the sleep-ready conditions are fulfilled. W-U RT M /R changes from the low power consumption mode to the normal mode when it receives a sleep wake-up signal (wake up) from M or any of the following conditions is fulfilled. n addition, it transmits a sleep-ready signal (not-ready) to M via communication to report the communication start. - gnition switch - The hood switch status changes. - n output request is received from a control unit via communication. -10

11 < SYSTM SRT > SS SYSTM (M /R) iagnosis escription SS SYSTM (M /R) [M /R] : UT TV TST escription n auto active test, the M /R sends a drive signal to the following systems to check their operation. il pressure warning lamp (only for models with VQ37VR engine) ront wiper (, ) arking lamp icense plate lamp Tail lamp Side marker lamp ront fog lamp eadlamp (, ) / compressor (magnet clutch) ooling fan (cooling fan control module) peration rocedure UT: ever perform auto active test in the following condition. ngine is running SUT- is connected 1. lose the hood and lift the wiper arms from the windshield. (revent windshield damage due to wiper operation) T: When auto active test is performed with hood opened, sprinkle water on windshield beforehand. 2. Turn the ignition switch. 3. Turn the ignition switch, and within 20 seconds, press the front door switch (driver side) 10 times. Then turn the ignition switch. UT: lose passenger door. 4. Turn the ignition switch within 10 seconds. fter that the horn sounds once and the auto active test starts. UT: ngine starts when ignition switch is turned while brake pedal is depressed. 5. The oil pressure warning lamp starts blinking when the auto active test starts. 6. fter a series of the following operations is repeated 3 times, auto active test is completed. T: When auto active test has to be cancelled halfway through test, turn the ignition switch. When auto active test is not activated, door switch may be the cause. heck door switch. Refer to -72, "omponent unction heck". nspection in uto ctive Test When auto active test is actuated, the following 6 steps are repeated 3 times. peration sequence 1 nspection location il pressure warning lamp (only for models with VQ37VR engine) peration links continuously during operation of auto active test 2 ront wiper motor for 5 seconds for 5 seconds 3 arking lamp icense plate lamp Tail lamp Side marker lamp ront fog lamp 4 eadlamp 10 seconds 10 seconds 5 times -11

12 < SYSTM SRT > SS SYSTM (M /R) [M /R] peration sequence *: utputs duty ratio of 50% for 5 seconds duty ratio of 100% for 5 seconds on the cooling fan control module. oncept of auto active test nspection location 5 / compressor (magnet clutch) 5 times peration 6 ooling fan M for 5 seconds for 5 seconds M /R starts the auto active test with the door switch signals transmitted by M via communication. Therefore, the communication line between M /R and M is considered normal if the auto active test starts successfully. The auto active test facilitates troubleshooting if any systems controlled by M /R cannot be operated. iagnosis chart in auto active test MM0374 Symptom nspection contents ossible cause ny of the following components do not operate arking lamp icense plate lamp Tail lamp Side marker lamp ront fog lamp eadlamp (, ) ront wiper motor / compressor does not operate il pressure warning lamp does not operate (only for models with VQ37VR engine) erform auto active test. oes the applicable system operate? erform auto active test. oes the magnet clutch operate? erform auto active test. oes the oil pressure warning lamp blink? YS YS YS M signal input circuit amp or motor amp or motor ground circuit arness or connector between M /R and applicable system M /R ombination meter signal input circuit communication signal between ombination meter and M communication signal between M and M /R Magnet clutch arness or connector between M /R and magnet clutch M /R arness or connector between M /R and oil pressure switch il pressure switch M /R communication signal between M /R and M communication signal between M and ombination meter ombination meter -12

13 < SYSTM SRT > SS SYSTM (M /R) [M /R] ooling fan does not operate SUT- unction (M /R) T TM SUT- performs the following functions via communication with M /R. iagnosis mode cu dentification Self iagnostic Result ata Monitor ctive Test iag Support Monitor Symptom nspection contents ossible cause erform auto active test. oes the cooling fan operate? YS escription M signal input circuit communication signal between M and M /R ooling fan arness or connector between cooling fan and cooling fan control module ooling fan control module arness or connector between M /R and cooling fan control module ooling fan relay arness or connector between M /R and cooling fan relay M /R : llows confirmation of M /R part number. isplays the diagnosis results judged by M /R. isplays the real-time input/output data from M /R input/output data. M /R can provide a drive signal to electronic components to check their operations. The results of transmit/receive diagnosis of communication can be read. S ST RSUT Refer to -24, "T ndex". T MTR Monitor item Monitor tem [Unit] R RQ [%] M RQ [ff/n] T&R RQ [ff/n] RQ [ff/n] RQ [ff/n] R RQ [ff/n] R W RQ [Stop/1W/ow/i] W UT ST [ST /T ] W RT [ff/] RY1 -RQ [ff/n] M S- S -13 escription isplays the value of the cooling fan speed signal received from M via communication. isplays the status of the / compressor request signal received from M via communication. isplays the status of the position light request signal received from M via communication. isplays the status of the low beam request signal received from M via communication. isplays the status of the high beam request signal received from M via communication. isplays the status of the front fog light request signal received from M via communication. isplays the status of the front wiper request signal received from M via communication. isplays the status of the front wiper stop position signal judged by M /R. isplays the status of the front wiper fail-safe operation judged by M /R. isplays the status of the ignition switch signal received from M via communication.

14 < SYSTM SRT > SS SYSTM (M /R) [M /R] RY [ff/n] US SW [ff/n] TR/ SW [ff/n] ST RY T [ff/n] T RY -RQ [ff/n] ST/ RY [ff/ ST //UW] TT SW [ff/n] S/ RY -RQ [ff/n] S/ STT [/U/UW] TR RQ [ff/n] SW [pen/lose] SW [ff/n] WSR RQ [ff/n] TT R RQ [ff/n] R R [ff/n] Monitor tem [Unit] RR M RQ [ff/n] M S- S isplays the status of the ignition relay judged by M /R. isplays the status of the push-button ignition switch judged by M /R. isplays the status of the shift position judged by M /R. isplays the status of the starter relay status signal received from M via communication. isplays the status of the starter control relay signal received from M via communication. isplays the status of the starter relay and starter control relay judged by M /R. isplays the status of the /T shift selector (detention switch) judged by M /R. isplays the status of the steering lock relay request received from M via communication. isplays the status of the steering lock judged by M /R. isplays the status of the daytime running light request signal received from M via communication. T: This item is monitored only on the vehicle with daytime running light system. isplays the status of the oil pressure switch judged by M /R. T: This item is monitored only on the vehicle with VQ37VR engine models. isplays the status of the hood switch judged by M /R. T: The item is indicated, but not monitored. isplays the status of the theft warning horn request signal received from M via communication. isplays the status of the horn reminder signal received from M via communication. T: The item is indicated, but not monitored. escription TV TST Test item Test item peration escription ff RR M R T: The item is indicated, but cannot be tested. R n perates horn relay for 20 ms. RT WR ff o i perates the front wiper relay. perates the front wiper relay and front wiper high relay. -14

15 < SYSTM SRT > SS SYSTM (M /R) [M /R] MTR Test item peration escription M WSR XTR MS 1 2 Transmits 50% pulse duty signal (WM signal) to the cooling fan control module. 3 Transmits 75% pulse duty signal (WM signal) to the cooling fan control module. Transmits 100% pulse duty signal (WM signal) to the cooling fan control module. 4 n ff T o i og T: The item is indicated, but cannot be tested. perates the tail lamp relay and the daytime running light relay. perates the headlamp low relay. perates the headlamp low relay and / the headlamp high relay at 1 second intervals. perates the front fog lamp relay. -15

16 M /R < U SS RMT > [M /R] U SS RMT M /R Reference Value VUS T SS T : Monitor tem ondition Value/Status R RQ ngine idle speed hanges depending on engine coolant temperature, air conditioner operation status, vehicle speed, etc % / switch ff M RQ ngine running / switch (compressor is operating) n ighting switch ff T&R RQ ighting switch 1ST, 2 or UT (light is illuminated) aytime running light system is operated n ighting switch ff RQ ighting switch 2 or UT (light is illuminated) aytime running light system is operated n RQ ighting switch 2 or ighting switch other than and SS ff UT (light is illuminated) ighting switch or SS n ront fog lamp switch R RQ ighting switch 2 or ff ighting switch or SS UT (light is illuminated) ront fog lamp switch n ront wiper switch Stop R W RQ gnition switch ront wiper switch UT 1W ront wiper switch ow ront wiper switch i ront wiper stop position ST W UT ST gnition switch ny position other than front wiper stop position T W RT gnition switch ront wiper operates normally ff ront wiper stops at fail-safe operation RY1 -RQ gnition switch or ff gnition switch n RY gnition switch or ff gnition switch n US SW Release the push-button ignition switch ff ress the push-button ignition switch n Selector lever in any position other TR/ SW gnition switch than or ff Selector lever in or position n ST RY T T RY -RQ gnition switch t engine cranking gnition switch t engine cranking ff n ff n -16

17 M /R < U SS RMT > [M /R] ST/ RY TT SW S/ RY -RQ S/ STT TR RQ SW SW WSR RQ TT R RQ R R Monitor tem ondition Value/Status RR M RQ gnition switch t engine cranking The status of starter relay or starter control relay cannot be recognized by the battery voltage malfunction, etc. when the starter relay is and the starter control relay is gnition switch ress the selector button with selector lever in position Selector lever in any position other than Release the selector button with selector lever in position one of the conditions below are present pen the driver door after the ignition switch is turned (for a few seconds) ress the push-button ignition switch when the steering lock is activated Steering lock is activated Steering lock is deactivated [T: 210] is detected aytime running light system is not operated ny of the condition below aytime running light system is operated ight switch 1ST, 2 or UT (light is illuminated) gnition switch or gnition switch (engine running) gnition switch (engine stopped) lose the hood pen the hood T: The item is indicated, but not monitored. ot operation anic alarm is activated Theft warning alarm is activated ot operation oor locking with ntelligent ey (horn chirp mode) T: The item is indicated, but not monitored. ff ST UW ff n ff n U UW ff n pen lose ff n ff ff n ff n ff -17

18 M /R < U SS RMT > [M /R] TRM YUT YS VUS SM0001ZZ Terminal o. (Wire color) + 1 (W) 2 () 4 (W) 5 () escription Signal name nput/ utput ondition Value (pprox.) attery power supply nput gnition switch attery voltage attery power supply nput gnition switch attery voltage M relay power supply M relay power supply utput utput gnition switch (More than a few seconds after turning ignition switch ) gnition switch gnition switch (or a few seconds after turning ignition switch ) gnition switch (More than a few seconds after turning ignition switch ) gnition switch gnition switch (or a few seconds after turning ignition switch ) attery voltage attery voltage -18

19 M /R < U SS RMT > [M /R] Terminal o. (Wire color) + 6 (R) 7 (Y) 8 () 10 (V) 11 () 12 () 13 (R) 16 (V) 18 (Y) M relay power supply Throttle control motor relay power supply / relay power supply utput utput utput gnition switch (More than a few seconds after turning ignition switch ) gnition switch gnition switch (or a few seconds after turning ignition switch ) gnition switch (More than a few seconds after turning ignition switch ) gnition switch gnition switch (or a few seconds after turning ignition switch ) ngine running / switch / switch (/ compressor is operating) attery voltage attery voltage attery voltage M power supply utput gnition switch attery voltage gnition switch escription Signal name gnition relay power supply uel pump power supply ront wiper stop position nput/ utput utput utput nput gnition relay monitor nput gnition switch or gnition switch pproximately 1 second or more after turning the ignition switch pproximately 1 second after turning the ignition switch ngine running gnition switch ondition gnition switch or gnition switch ront wiper stop position ny position other than front wiper stop position Value (pprox.) attery voltage attery voltage 12 V attery voltage -19

20 M /R < U SS RMT > [M /R] Terminal o. (Wire color) + escription Signal name nput/ utput ondition Value (pprox.) gnition switch 6.3 V M (R) ower generation command signal utput 40% is set on TV TST, TR- TR UTY of 3.8 V M % is set on TV TST, TR- TR UTY of 23 (S) 24 () 25 () 30 (R) 31 (W) 32 () 34 () 36 (R) 39 () 40 () 41 () aytime running light relay control utput ood switch nput gnition relay power supply ush-button ignition switch utput nput Starter relay control nput Steering lock unit condition-1 Steering lock unit condition-2 nput nput arking lamp icense plate lamp Tail lamp lose the hood pen the hood Turned Turned gnition switch or gnition switch ress the push-button ignition switch Release the push-button ignition switch gnition switch Steering lock is activated Steering lock is deactivated Steering lock is activated Steering lock is deactivated Selector lever in any position other than or Selector lever or 1.4 V attery voltage 12 V attery voltage attery power supply nput gnition switch attery voltage - - nput/ utput nput/ utput 12 V 12 V 12 V 12 V gnition switch M

21 M /R < U SS RMT > [M /R] Terminal o. (Wire color) + escription Signal name nput/ utput ondition Value (pprox.) 42 (V) ooling fan relay 1 control nput gnition switch or gnition switch 0.7 V 43 (S) /T shift selector (etention switch) nput gnition switch ress the selector button (selector lever ) Selector lever in any position other than Release the selector button (selector lever ) 12 V 44 (R) 45 () orn relay control nput nti theft horn relay control nput The horn is deactivated The horn is activated The horn is deactivated The horn is activated attery voltage attery voltage 46 (R) 49 (R) Starter relay control nput Steering lock unit power supply utput gnition switch gnition switch gnition switch gnition switch or Selector lever in any position other than or Selector lever or few seconds after opening the driver door ress the push-button ignition switch 12 V attery voltage attery voltage 51 () gnition relay power supply utput gnition switch or gnition switch attery voltage 52 () 53 () gnition relay power supply ront wiper (ground) utput utput gnition switch or gnition switch gnition switch ront wiper switch or attery voltage 54 () ront wiper utput gnition switch ront wiper switch ront wiper switch attery voltage 55 (R) llumination utput ighting switch ighting switch 1ST attery voltage 56 (R) 57 (V) 58 (R) gnition relay power supply gnition relay power supply gnition relay power supply utput utput utput gnition switch or gnition switch gnition switch or gnition switch gnition switch or gnition switch attery voltage attery voltage attery voltage 70 () M relay control utput gnition switch (More than a few seconds after turning ignition switch ) gnition switch gnition switch (or a few seconds after turning ignition switch ) attery voltage V -21

22 M /R < U SS RMT > [M /R] Terminal o. (Wire color) + 71 () 73 () 74 (R) 75* (Y) 77 () 80 (W) 83 (R) 84 (W) 86 () 87 () 88 () 89 (Y) 90 () Throttle control motor relay control gnition relay power supply gnition relay power supply utput utput utput il pressure switch nput uel pump relay control utput gnition switch gnition switch gnition switch or gnition switch gnition switch or gnition switch gnition switch ngine stopped ngine running pproximately 1 second after turning the ignition switch ngine running pproximately 1 second or more after turning the ignition switch 0 1. attery voltage 0 1. attery voltage attery voltage 12 V 0 1. attery voltage Starter motor utput t engine cranking attery voltage eadlamp (R) utput eadlamp () utput ront fog lamp (R) utput ront fog lamp () utput escription Signal name ront wiper motor power supply nput/ utput eadlamp (R) utput eadlamp () utput ighting switch ighting switch 2 or UT (light is illuminated) aytime running light operated ighting switch ighting switch 2 or UT (light is illuminated) aytime running light operated ighting switch 2 or UT (light is illuminated) ighting switch 2 or UT (light is illuminated) ront fog lamp switch ighting switch or SS ront fog lamp switch ront fog lamp switch ighting switch or SS ront fog lamp switch attery voltage attery voltage attery voltage attery voltage utput gnition switch attery voltage ighting switch 2 or UT (light is illuminated) ighting switch 2 or UT (light is illuminated) ondition ighting switch or SS ighting switch other than and SS ighting switch or SS ighting switch other than and SS Value (pprox.) attery voltage attery voltage -22

23 M /R < U SS RMT > [M /R] Terminal o. (Wire color) + 96 (R) 97 (V) *: or models with VQ37VR engine ail-safe escription Signal name nput/ utput Wiper reverse relay nput : MMUT TR When communication with M and M is impossible, M /R performs fail-safe control. fter communication recovers normally, it also returns to normal control. f o ommunication s vailable With M ooling fan f o ommunication s vailable With M ondition gnition switch or gnition switch ront wiper operates at ront wiper operates at Value (pprox.) attery voltage attery voltage ooling fan control utput ngine idling 0 5 V ontrol part ail-safe operation utputs the pulse duty signal (WM signal) 100% when the ignition switch is turned utputs the pulse duty signal (WM signal) 0% when the ignition switch is turned / compressor / relay lternator utputs the power generation command signal (WM signal) 0% eadlamp ontrol part arking lamp icense plate lamp llumination Tail lamp Side marker lamp ront wiper motor ront fog lamp orn gnition relay Starter motor Steering lock unit ail-safe operation Turns the headlamp low relay when the ignition switch is turned Turns the headlamp low relay when the ignition switch is turned eadlamp high relay Turns the tail lamp relay and daytime running light relay when the ignition switch is turned Turns the tail lamp relay and daytime running light relay when the ignition switch is turned The status just before activation of fail-safe control is maintained until the ignition switch is turned while the front wiper is operating at or speed. The wiper is operated at speed until the ignition switch is turned if the fail-safe control is activated while the front wiper is set in the UT mode and the front wiper motor is operating. Returns automatically wiper to stop position when ignition switch is turned if fail-safe control is activated while front wiper motor is operated and wiper stop in the other than stop position. ront fog lamp relay orn The status just before activation of fail-safe is maintained. Starter control relay Steering lock relay T RY MUT TT UT M /R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it. M /R judges the ignition relay error if the voltage differs between the contact circuit and the excitation coil circuit. -23

24 M /R < U SS RMT > [M /R] f the ignition relay cannot turn due to contact seizure, it activates the tail lamp relay and daytime running light relay for 10 minutes to alert the user to the ignition relay malfunction when the ignition switch is turned. gnition relay contact side Voltage judgment gnition relay excitation coil side M /R judgment peration gnition relay normal gnition relay normal gnition relay stuck gnition relay stuck etects T 2098: RY Turns the tail lamp relay and daytime running light relay for 10 minutes etects T 2099: RY RT WR RTT UT M /R detects front wiper stop position by a front wiper stop position signal. When a front wiper stop position signal is in the conditions listed below, M /R stops power supply to wiper after repeating a front wiper 10 seconds activation and 20 seconds stop five times. gnition switch ront wiper switch ront wiper stop position signal T: This operation status can be confirmed on the M /R ata Monitor that displays for the item W RT while the wiper is stopped. STRTR MTR RTT UT M /R turns the starter control relay to protect the starter motor when the starter control relay remains active for 90 seconds. T ndex The front wiper stop position signal (stop position) cannot be input for 10 seconds. The front wiper stop position signal does not change for 10 seconds. : T: The details of time display are as follows. - RT: malfunction is detected now. - ST: malfunction was detected in the past. counter is displayed on (reeze rame ata). - The number is 0 when is detected now. - The number increases like after returning to the normal condition whenever. - The number is fixed to 39 until the self-diagnosis results are erased if it is over 39. : pplicable SUT display ail-safe Reference* o T is detected. further testing may be required. U1000: MM RUT : RY : RY : STR RY S : STR RY S : STR STT SW S : RY S

25 M /R < U SS RMT > [M /R] SUT display ail-safe Reference* 210: RY S : STRTR RY S : STRTR RY S : TR/ SW S : TR/ SW S

26 < WR RM > WR RM M /R Wiring iagram M /R [M /R] : MW

27 < WR RM > M /R [M /R] MW

28 < WR RM > M /R [M /R] MW

29 U1000 MM RUT < T/RUT SS > [M /R] T/RUT SS U1000 MM RUT escription : (ontroller rea etwork) is a serial communication line for real time applications. t is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern vehicle is equipped with many electronic control unit, and each control unit shares information and links with other control units during operation (not independent). n communication, control units are connected with 2 communication lines (- line, - line) allowing a high rate of information transmission with less wiring. ach control unit transmits/receives data but selectively reads required data only. ommunication Signal hart. Refer to -35, " MMUT SYSTM : ommunication Signal hart". T ogic : T TT T SUT- display description T etection ondition ossible cause U1000 MM RUT When M /R cannot communicate communication signal continuously for 2 seconds or more communication system iagnosis rocedure : RRM S ST 1. Turn ignition switch and wait 2 seconds or more. 2. heck Self iagnostic Result of M /R using SUT-. s T U1000 displayed? YS >> Refer to -25, "Trouble iagnosis low hart". >> Refer to -38, "ntermittent ncident". -29

30 2098 T RY STU < T/RUT SS > [M /R] 2098 T RY STU escription : M /R operates the ignition relay when it receives an ignition switch signal from M via communication. Turn the ignition relay by pressing the push-button ignition switch once when the vehicle speed is 4 km/ h (2.5 M) or less. Turn the ignition relay with the following operation when the vehicle speed is more than 4 km/h (2.5 M) or when an abnormal condition occurs in communication from the unified meter and / amp.(mergency ) - ress and hold the push-button ignition switch for 2 seconds or more. - ress the push-button ignition switch 3 times within 1.5 seconds. T: The ignition relay does not turn for 3 seconds after emergency even if the push-button ignition switch is pressed. T ogic T TT : T 2098 SUT- display description RY iagnosis rocedure T etection ondition The ignition relay is detected for 1 second at ignition switch (U monitors the status at the contact and excitation coil circuits of the ignition relay inside it) ossible causes gnition relay malfunction : RRM S SS 1. Turn ignition switch. 2. rase Self iagnostic Result of M /R using SUT-. 3. Turn ignition switch, and wait 1 second or more. 4. Turn ignition switch. 5. heck Self iagnostic Result of M /R using SUT-. s T 2098 displayed? YS >> Replace M /R. Refer to -33, "Removal and nstallation". >> Refer to -38, "ntermittent ncident". -30

31 2099 T RY STU < T/RUT SS > [M /R] 2099 T RY STU escription : M /R operates the ignition relay when it receives an ignition switch signal from M via communication. Turn the ignition relay by pressing the push-button ignition switch once when the vehicle speed is 4 km/ h (2.5 M) or less. Turn the ignition relay with the following operation when the vehicle speed is more than 4 km/h (2.5 M) or when an abnormal condition occurs in communication from the unified meter and / amp.(mergency ) - ress and hold the push-button ignition switch for 2 seconds or more. - ress the push-button ignition switch 3 times within 1.5 seconds. T: The ignition relay does not turn for 3 seconds after emergency even if the push-button ignition switch is pressed. T ogic T TT T 2099 SUT- display description RY T: When M /R power supply voltage is low (pprox. 7-8 V for about 1 second), the T: 2099 may be detected. iagnosis rocedure T etection ondition The ignition relay is detected for 1 second at ignition switch (U monitors the status at the contact and excitation coil circuits of the ignition relay inside it) 1.RRM S SS 1. Turn ignition switch. 2. rase Self iagnostic Result of M /R using SUT-. 3. Turn ignition switch. 4. Turn ignition switch. 5. heck Self iagnostic Result of M /R using SUT-. s 2099 displayed? YS >> Replace M /R. Refer to -33, "Removal and nstallation". >> Refer to -38, "ntermittent ncident". : ossible causes gnition relay malfunction :

32 WR SUY RU RUT < T/RUT SS > [M /R] WR SUY RU RUT iagnosis rocedure 1. USS US heck that the following M /R fuses or fusible links are not blown. Signal name attery power supply : s the fuse fusing? YS >> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is blown. >> T WR SUY RUT 1. Turn the ignition switch. 2. isconnect M /R connector. 3. heck voltage between M /R harness connector and the ground. uses and fusible link o. (80 ) (60 ) (30 ) 50 (15 ) 51 (15 ) (+) M /R onnector Terminal s the measurement value normal? YS >> T 3. >> Repair the harness or connector. 3. RU RUT heck continuity between M /R harness connectors and the ground. ( ) Voltage (pprox.) attery voltage M /R onnector Terminal oes continuity exist? YS >> ST >> Repair the harness or connector. ontinuity xisted -32

33 M /R < RMV STT > [M /R] RMV STT M /R xploded View : M /R cover 2. M /R 3. M /R cover Removal and nstallation MM0370ZZ UT: M /R integrated relays are not serviceable parts, and must not be removed from the unit. RMV 1. isconnect the battery cable from the negative terminal. 2. Remove the cowl top cover (R). Refer to XT-21, "Removal and nstallation". 3. ull up the M /R assembly while pressing the pawls () on the back of the M /R cover (1). : M0059ZZ 4. Remove the M /R cover while pressing the pawls () at the lower end of the M /R cover (1). 5. isconnect the harness connector and remove the M /R (2). M0060ZZ STT -33

34 M /R < RMV STT > [M /R] nstall in the reverse order of removal. -34

35 RUTS < RUT > [WR STRUT SYSTM] RUT RUTS recaution for Supplemental Restraint System (SRS) "R " and "ST T R-TSR" : The Supplemental Restraint System such as R and ST T R-TSR, 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. nformation necessary to service the system safely is included in the SRS R and ST T of this Service Manual. WR: To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision that would result in air bag inflation, all maintenance must be performed by an authorized SS/T dealer. mproper 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 able and ir ag Module, see the SRS R. o 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. RUTS W US WR TS (R R TR) MMRS WR: When working near the ir ag iagnosis Sensor Unit or other ir ag System sensors with the ignition or engine running, T use air or electric power tools or strike near the sensor(s) with a hammer. eavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury. When using air or electric power tools or hammers, always switch the ignition, disconnect the battery, and wait at least 3 minutes before performing any service. recaution ecessary for Steering Wheel Rotation after attery isconnect : T: efore removing and installing any control units, first turn the push-button ignition switch to the position, then disconnect both battery cables. fter finishing work, confirm that all control unit connectors are connected properly, then re-connect both battery cables. lways use SUT- to perform self-diagnosis as a part of each function inspection after finishing work. f a T is detected, perform trouble diagnosis according to self-diagnosis results. or vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and cannot be turned. f turning the steering wheel is required with the battery disconnected or discharged, follow the operation procedure below before starting the repair operation. RT RUR 1. onnect both battery cables. T: Supply power using jumper cables if battery is discharged. 2. Turn the push-button ignition switch to position. (t this time, the steering lock will be released.) 3. isconnect both battery cables. The steering lock will remain released with both battery cables disconnected and the steering wheel can be turned. 4. erform the necessary repair operation. -35

36 RUTS < RUT > [WR STRUT SYSTM] 5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn the push-button ignition switch from position to position, then to position. (The steering wheel will lock when the push-button ignition switch is turned to position.) 6. erform self-diagnosis check of all control units using SUT-. -36

37 MT RTS < SYSTM SRT > [WR STRUT SYSTM] SYSTM SRT MT RTS omponent arts ocation : ush-button ignition switch 2. M /R Refer to -5, "M /R : omponent arts ocation" 4. M Refer to S-4, "Y TR SYSTM : omponent arts ocation" omponent escription 5. TM Refer to TM-8, "/T TR SYS- TM : omponent arts ocation" MM0428ZZ 3. Stop lamp switch Refer to R-10, "omponent arts ocation" : M M Reference -37 gnition relay -37 ccessory relay -38 lower relay -38 ush-button ignition switch TM -38 S-9 Stop lamp switch S-11 M : M controls the various electrical components and simultaneously supplies power according to the power supply position. M checks the power supply position internally. gnition Relay : M turns the following relays to supply ignition power supply or ignition switch signal to each U when the ignition switch is turned. gnition relay (fuse block) gnition relay (M /R) lower relay M compares following status comparing. gnition relay (fuse block) control signal, and power supply position judged by M -37

38 MT RTS < SYSTM SRT > [WR STRUT SYSTM] gnition relay (M /R) control request, and gnition relay (M /R) status ccessory Relay : M turns the accessory relays to supply accessory power supply or ignition switch signal to each U when the ignition switch is turned or. M compares status of accessory relay control signal, and power supply position judged by M. lower Relay : M turns the following relays to supply ignition power supply or ignition switch signal to each U when the ignition switch is turned. gnition relay (fuse block) gnition relay (M /R) lower relay M compares status of blower relay control signal, and power supply position judged by M. ush-utton gnition Switch : M transmits the change in the power supply position with the push-button ignition switch to M /R via communication line. M /R transmits the power supply position status via communication line to M. -38

39 SYSTM < SYSTM SRT > [WR STRUT SYSTM] SYSTM WR STRUT SYSTM WR STRUT SYSTM : System iagram : MM0385 WR STRUT SYSTM : System escription -39 : SYSTM SRT S (WR STRUT SYSTM) is the system that M controls with the operation of the pushbutton ignition switch and performs the power distribution to each power circuit. This system is used instead of the mechanical power supply changing mechanism with the operation of the conventional key cylinder. The push-button ignition switch can be operated when ntelligent ey is in the following condition. Refer to ngine Start unction for details. - ntelligent ey is in the detection area of the interior antenna. - ntelligent ey backside is contacted to push-button ignition switch. The push-button ignition switch operation is input to M as a signal. M changes the power supply position according to the status and operates the following relays to supply power to each power circuit. - gnition relay (M /R) - gnition relay (fuse block) - relay - lower fan relay T: The engine switch operation changes due to the conditions of brake pedal, selector lever and vehicle speed. The power supply position can be confirmed with the lighting of the indicators near the push-button ignition switch. TTRY SVR SYSTM When all the following conditions are met for 60 minutes, the battery saver system will cut off the power supply to prevent battery discharge. The ignition switch is in the position ll doors are closed Selector lever is in the position Reset ondition of attery Saver System n order to prevent the battery from discharging, the battery saver system will cut off the power supply when all doors are closed, the selector lever is on position and the ignition switch is left on position for 1 hour. f any of the following conditions are met the battery saver system is released and the steering will change automatically to lock position from position. pening any door perating with door request switch on door lock perating with ntelligent ey on door lock ress push-button ignition switch and ignition switch will change to position from position.