LAN SYSTEM SECTION LAN CONTENTS ELECTRICAL & POWER CONTROL LAN-1 CAN FUNDAMENTAL PRECAUTION...21 PRECAUTION... 5 FUNCTION DIAGNOSIS...

Transcription

1 TR & WR TR ST SYSTM TTS UMT RUT...21 RUT... 5 RUTS... 5 recautions for Trouble iagnosis...5 recautions for arness Repair...5 UT SS... 6 MMUT SYSTM... 6 System escription...6 System iagram...6 ommunication ontrol ircuit escription...8 System iagram...8 TRU SS... 9 ondition of rror etection...9 Symptom When rror ccurs in ommunication System...9 iagnosis with SUT Self-iagnosis...12 iagnostic Support Monitor...12 ow to Use ommunication Signal hart...14 S ST...15 SS RR WRW...15 Trouble iagnosis low hart...15 Trouble...15 W T US TS MU...20 W T US TS ST...20 aution...20 bbreviation ist...20 RUTS...21 recaution for Supplemental Restraint System (SRS) "R " and "ST T R-T- SR"...21 recautions for Trouble iagnosis...21 recautions for arness Repair...21 S ST...23 SS RR WRW...23 nterview Sheet...23 UT SS...24 MMUT SYSTM...24 System Specification hart...24 ommunication Signal hart...24 MT SS...27 MMUT SYSTM...27 omponent arts ocation...27 Wiring iagram - SYSTM MUT R RT...36 Main ine...36 ranch ine...36 Short ircuit...36 M TW V R- UT M TW - RUT M TW - V RUT

2 M TW V R- UT M TW S R- UT M R RUT R RUT R RUT V R RUT V R RUT STR R RUT M R RUT R RUT M& R RUT S R RUT TM R RUT M- R RUT MMUT RUT SYSTM (TY 1) MT SS M TW - V RUT M TW V R- UT M TW S R- UT M R RUT R RUT V R RUT STR R RUT M R RUT R RUT M& R RUT S R RUT TM R RUT M- R RUT MMUT RUT SYSTM (TY 2) MT SS M TW - RUT M TW - V RUT M TW V R- UT M TW S R- UT M R RUT R RUT R RUT V R RUT

3 STR R RUT S R RUT M R RUT R RUT M& R RUT S R RUT TM R RUT M- R RUT MMUT RUT SYSTM (TY 3) MT SS...88 M TW - V RUT M TW V R- UT M TW S R- UT M R RUT R RUT V R RUT V R RUT STR R RUT M R RUT R RUT M& R RUT TM R RUT M- R RUT MMUT RUT SYSTM (TY 4) MT SS M TW - RUT M TW - V RUT M TW V R- UT M TW S R- UT M R RUT R RUT R RUT V R RUT V R RUT STR R RUT M R RUT R RUT M& R RUT S R RUT TM R RUT

4 M- R RUT MMUT RUT SYSTM (TY 5) MT SS M TW V R- UT M TW S R- UT M R RUT V R RUT STR R RUT M R RUT R RUT M& R RUT S R RUT TM R RUT M- R RUT MMUT RUT SYSTM (TY 6) MT SS M TW V R- UT M TW V R- UT M TW S R- UT M R RUT R RUT V R RUT STR R RUT M R RUT R RUT M& R RUT S R RUT TM R RUT M- R RUT MMUT RUT

5 RUTS < RUT > [ UMT] RUT RUTS recautions for Trouble iagnosis : UT: ever apply 7.0 V or more to the measurement terminal. Use a tester with open terminal voltage of 7.0 V or less. Turn the ignition switch and disconnect the battery cable from the negative terminal when checking the harness. recautions for arness Repair Solder the repaired area and wrap tape around the soldered area. T: fray of twisted lines must be within 110 mm (4.33 in). : ypass connection is never allowed at the repaired area. T: ypass connection may cause communication error. The spliced wire becomes separated and the characteristics of twisted line are lost. S8766 S8767 Replace the applicable harness as an assembly if error is detected on the shield lines of communication line. -5

6 MMUT SYSTM < UT SS > [ UMT] UT SS MMUT SYSTM System escription : communication is a multiplex communication system. This enables the system to transmit and receive large quantities of data at high speed by connecting control units with two communication lines (- and -). ontrol units on the network transmit signals using the communication control circuit. They receive only necessary signals from other control units to operate various functions. communication lines adopt twisted-pair line style (two lines twisted) for noise immunity. System iagram : S8887 ach control unit passes an electric current to the termination circuits when transmitting communication signal. The termination circuits produce an electrical potential difference between - and -. communication system transmits and receives communication signals by the potential difference. omponent Main line ranch line Splice Termination circuit escription communication line between splices communication line between splice and a control unit point connecting a branch line with a main line Refer to -7, " ommunication ontrol ircuit". -6

7 MMUT SYSTM < UT SS > [ UMT] ommunication ontrol ircuit : omponent controller Transceiver oise filter Termination circuit * (Resistance of approx. 120 Ω) *: These are the only control units wired with both ends of communication system. S8713 System description t controls communication signal transmission and reception, error detection, etc. t converts digital signal into communication signal, and communication signal into digital signal. t eliminates noise of communication signal. t produces potential difference. -7

8 < UT SS > [ UMT] escription : iag on is a diagnosis using communication instead of previous 1 and 2 communication lines, between control units and diagnosis unit. System iagram : S8714 ame arness escription 1 Tx Rx t is used for trouble diagnosis. (- and - are used for controlling) 2 - t is used for trouble diagnosis. (- and - are used for controlling) iag on - - t is used for trouble diagnosis and control. -8

9 TRU SS < UT SS > [ UMT] TRU SS ondition of rror etection : U1000 or U1001 is indicated on S- RSUTS on SUT- if communication signal is not transmitted or received between units for 2 seconds or more. MMUT SYSTM RRR communication line open (-, -, or both) communication line short (ground, between communication lines, other harnesses) rror of communication control circuit of the unit connected to communication line W U1000 R U1001 S T V TU MMUT SYSTM S RM Removal/installation of parts: rror may be detected when removing and installing communication unit and related parts while turning the ignition switch. ( T except for communication may be detected.) use blown out (removed): communication of the unit may cease. Voltage drop: rror may be detected if voltage drops due to discharged battery when turning the ignition switch (epending on the control unit which carries out communication). rror may be detected if the power supply circuit of the control unit, which carries out communication, malfunctions (epending on the control unit which carries out communication). rror may be detected if reprogramming is not completed normally. T: communication system is normal if U1000 or U1001 is indicated on S- RSUTS of - SUT- under the above conditions. rase the memory of the self-diagnosis of each unit. Symptom When rror ccurs in ommunication System : n communication system, multiple units mutually transmit and receive signals. ach unit cannot transmit and receive signals if any error occurs on communication line. Under this condition, multiple control units related to the root cause malfunction or go into fail-safe mode. RRR XM T: ach vehicle differs in symptom of each unit under fail-safe mode and communication line wiring. Refer to -20, "bbreviation ist" for the unit abbreviation. xample: TM branch line open circuit S8738 M M Unit name Symptom ngine torque limiting is affected, and shift harshness increases. Reverse warning chime does not sound. -9

10 TRU SS < UT SS > [ UMT] S control unit ombination meter Unit name S actuator and electric unit (control unit) TM M /R ormal operation. xample: ata link connector branch line open circuit Shift position indicator and indicator turn. Warning lamps turn. ormal operation. o impact on operation. ormal operation. Symptom S8739 M Unit name M S control unit ombination meter S actuator and electric unit (control unit) TM M /R ormal operation. Symptom T: When data link connector branch line is open, transmission and reception of communication signals are not affected. Therefore, no symptoms occur. owever, be sure to repair malfunctioning circuit. The model (all units on communication system are iag on ) cannot perform diagnosis with SUT- if the following error occurs. The error is judged by the symptom. rror ata link connector branch line open circuit -, - harness short-circuit ormal operation. ifference of symptom Most of the units which are connected to the communication system enter fail-safe mode or are deactivated. -10

11 TRU SS < UT SS > [ UMT] xample: Main ine etween ata ink onnector and S ctuator and lectric Unit (ontrol Unit) pen ircuit M M S control unit ombination meter Unit name S actuator and electric unit (control unit) TM M /R xample: -, - arness Short ircuit Symptom ngine torque limiting is affected, and shift harshness increases. S8740 Reverse warning chime does not sound. The front wiper moves under continuous operation mode even though the front wiper switch being in the intermittent position. The steering effort increases. The shift position indicator and indicator turn. The speedometer is inoperative. The odo/trip meter stops. ormal operation. o impact on operation. When the ignition switch is, The headlamps (o) turn. The cooling fan continues to rotate. S

12 TRU SS < UT SS > [ UMT] Unit name M M S control unit ombination meter S actuator and electric unit (control unit) TM M /R Symptom ngine torque limiting is affected, and shift harshness increases. ngine speed drops. Reverse warning chime does not sound. The front wiper moves under continuous operation mode even though the front wiper switch being in the intermittent position. The room lamp does not turn. The engine does not start (if an error or malfunction occurs while turning the ignition switch.) The steering lock does not release (if an error or malfunction occurs while turning the ignition switch.) The steering effort increases. The tachometer and the speedometer do not move. Warning lamps turn. ndicator lamps do not turn. ormal operation. o impact on operation. When the ignition switch is, The headlamps (o) turn. The cooling fan continues to rotate. iagnosis with SUT- diagnosis on SUT- extracts the root cause by receiving the following information. Response to the system call ontrol unit diagnosis information Self-diagnosis diagnostic support monitor Self-iagnosis : : T Self-diagnosis item (SUT- indication) T detection condition nspection/ction U0101 ST MM (TM) When M is not transmitting or receiving communication signal of (emission-related diagnosis) from TM for 2 seconds or more. U0164 U1000 ST MM (V) MM RUT When M is not transmitting or receiving communication signal of (emission-related diagnosis) from / auto amp. for 2 seconds or more. When a control unit (except for M) is not transmitting or receiving communication signal for 2 seconds or more. Start the inspection. Refer to the applicable section of the indicated control unit. U1001 MM RUT When M is not transmitting or receiving communication signal other than (emission-related diagnosis) for 2 seconds or more. U1002 SYSTM MM When a control unit is not transmitting or receiving communication signal for 2 seconds or less. U TR UT() M When an error is detected during the initial diagnosis for controller of each control unit. Replace the control unit indicating U1010 or iagnostic Support Monitor : MTR TM (SUT-) -12

13 TRU SS < UT SS > [ UMT] xample: SURT MTR indication Without ST With ST tem RST escription nitial diagnosis Transmission diagnosis ontrol unit name (Reception diagnosis) UW UW ormal at present ontrol unit error (xcept for some control units) ormal at present Unable to transmit signals for 2 seconds or more. iagnosis not performed ormal at present Unable to receive signals for 2 seconds or more. iagnosis not performed o control unit for receiving signals. (o applicable optional parts) SM0015 tem RST ST escription Transmission diagnosis ontrol unit name (Reception diagnosis) ormal at present and in the past ormal at present, but unable to transmit signals for 2 seconds or more 1 39 in the past. (The number indicates the number of ignition switch cycles from to.) UW 0 Unable to transmit signals for 2 seconds or more at present. ormal at present and in the past ormal at present, but unable to receive signals for 2 seconds or more 1 39 in the past. (The number indicates the number of ignition switch cycles from to.) UW 0 Unable to receive signals for 2 seconds or more at present. iagnosis not performed. o control unit for receiving signals. (o applicable optional parts) MTR TM (-R SS) T: or some models, communication diagnosis result is received from the vehicle monitor. -13

14 TRU SS < UT SS > [ UMT] xample: Vehicle isplay tem _MM (nitial diagnosis) _R_1 (Transmission diagnosis) _R_2 9 (Reception diagnosis of each unit) Result indicated rror counter 0 ormal at present ormal at present UW ormal at present UW 1 50 ow to Use ommunication Signal hart escription ontrol unit error (The number indicates how many times diagnosis has been run.) Unable to transmit for 2 seconds or more at present. (The number indicates how many times diagnosis has been run.) Unable to transmit for 2 seconds or more at present. (The number indicates how many times diagnosis has been run.) iagnosis not performed. o control unit for receiving signals. (o applicable optional parts) : The communication signal chart lists the signals needed for trouble diagnosis. t is useful for detecting the root cause by finding a signal related to the symptom, and by checking transmission and reception unit. S

15 SS RR WRW < S ST > [ UMT] S ST SS RR WRW Trouble iagnosis low hart : SM0016 Trouble : TRVW WT USTMR nterview with the customer is important to detect the root cause of communication system errors and to understand vehicle condition and symptoms for proper trouble diagnosis. oints in interview What: arts name, system name When: ate, requency Where: Road condition, lace n what condition: riving condition/environment Result: Symptom T: heck normal units as well as error symptoms. - xample: ircuit between M and the combination meter is judged normal if the customer indicates tachometer functions normally. When a communication system error is present, multiple control units may malfunction or go into failsafe mode. -15

16 SS RR WRW < S ST > [ UMT] ndication of the combination meter is important to detect the root cause because it is the most obvious to the customer, and it performs communication with many units. ST V T heck whether the symptom is reproduced or not. T: o not turn the ignition switch or disconnect the battery cable while reproducing the error. The error may temporarily correct itself, making it difficult to determine the root cause. SYSTM TY (W T US SYSTM TY ST RT) etermine system type based on vehicle equipment. T: This chart is used if SUT- does not automatically recognize system type. There are two styles for system type specification charts. epending on the number of available system types, either style or style may be used. System Type Specification hart (Style ) T: S

17 SS RR WRW < S ST > [ UMT] system type is easily checked with the vehicle equipment identification information shown in the chart. SM0017 System Type Specification hart (Style ) T: -17

18 SS RR WRW < S ST > [ UMT] system type is easily checked with the vehicle equipment identification information shown in the chart. SM0018 RT TRVW ST ill out the symptom described by the customer, vehicle condition, and system type on the interview sheet. -18

19 SS RR WRW < S ST > [ UMT] nterview Sheet (xample) SM0019 TT T RT US diagnosis function of SUT- detects the root cause. -19

20 < W T US TS MU > W T US TS ST W T US TS MU W T US TS ST aution This section describes information peculiar to a vehicle and inspection procedures. or trouble diagnosis procedure, refer to -15, "Trouble ". bbreviation ist [] : : Unit name abbreviations in SUT- diagnosis and in this section are as per the following list. bbreviation - S V M M V M- M& STR TM Unit name ir bag diagnosis sensor unit S actuator and electric unit (control unit) river seat control unit V control unit M ata link connector M / auto amp. M /R ombination meter Steering angle sensor TM -20

21 < RUT > RUT RUTS 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 which 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. ever 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 irbag iagnosis Sensor Unit or other irbag 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. recautions for Trouble iagnosis : UT: ever apply 7.0 V or more to the measurement terminal. Use a tester with open terminal voltage of 7.0 V or less. Turn the ignition switch and disconnect the battery cable from the negative terminal when checking the harness. recautions for arness Repair Solder the repaired area and wrap tape around the soldered area. T: fray of twisted lines must be within 110 mm (4.33 in). : S

22 < RUT > RUTS ypass connection is never allowed at the repaired area. T: ypass connection may cause communication error. The spliced wire becomes separated and the characteristics of twisted line are lost. [] S8767 Replace the applicable harness as an assembly if error is detected on the shield lines of communication line. -22

23 < S ST > SS RR WRW S ST SS RR WRW nterview Sheet [] : S

24 < UT SS > UT SS MMUT SYSTM System Specification hart MMUT SYSTM [] : etermine system type from the following specification chart. T: Refer to -15, "Trouble " for how to use system specification chart. ody type Sedan xle 2W ngine VQ35 Transmission VT rake control V estination xcept for Mexico or Mexico utomatic drive positioner olor display system type : pplicable V QUMT TT RMT T: heck system type from the vehicle shape and equipment. ommunication Signal hart WM1102 : Refer to -14, "ow to Use ommunication Signal hart" for how to use communication signal chart. T: Refer to -20, "bbreviation ist" for the abbreviations of the connecting units. T: Transmit R: Receive Signal name/onnecting unit M V V STR M M& S TM M- / compressor request signal T R ccelerator pedal position signal T R R S RUS indicator signal T R S ST indicator signal T R losed throttle position signal T R -24

25 < UT SS > MMUT SYSTM [] Signal name/onnecting unit M V V STR M M& S TM M- ooling fan speed request signal T R T R ngine and VT integrated control signal R T ngine coolant temperature signal T R R R R R R ngine speed signal T R R R R R ngine status signal T R T R uel consumption monitor signal R T Malfunction indicator lamp signal T R ower generation command value signal T R T R T System setting signal R T R T R / control signal R T / switch signal R T T lower fan motor switch signal R T T Steering angle sensor signal T R uzzer output signal T R ornering lamp request signal T R ay time running light request signal R T R oor lock/unlock status signal R T oor switch signal R R T R R ront fog light request signal R T R R ront wiper request signal R T R R igh beam request signal R T R R R orn chirp signal T R gnition switch signal ey fob door unlock signal R T ey fob signal R T ey switch signal R T ey warning signal T R ow beam request signal R T R il pressure switch signal osition light request signal R T R R R Rear window defogger switch signal R T R Sleep wake up signal R T R R Stop lamp switch signal T R Theft warning horn request signal T R Trunk switch signal R T R Turn indicator signal R T R R istance to empty signal R T R T T R R R R R T T -25

26 < UT SS > MMUT SYSTM [] Signal name/onnecting unit M V V STR M M& S TM M- uel level low warning signal R T uel level sensor signal R T Manual mode shift down signal T R Manual mode shift up signal T R Manual mode signal T R Market information signal R T ot manual mode signal T R addle shifter shift down signal * T R addle shifter shift up signal * T R arking brake switch signal R R T R Seat belt buckle switch signal R T Sleep-ready signal Vehicle speed signal R R R R T R R R T R S operation signal T R S warning lamp signal R T rake warning lamp signal R T S indicator lamp signal R T V indicator lamp signal R T V operation signal T R VT indicator lamp signal R T VT self-diagnosis signal R T nput shaft revolution signal R R T Manual mode indicator signal R R T utput shaft revolution signal R R T range signal R R R R R T R range signal R R R R R T Shift position signal R T / compressor feedback signal R T ooling fan speed signal R T ontrol device (detention switch) signal R R T ront wiper stop position signal R T igh beam status signal R R T ood switch signal R R T ow beam status signal R R T ush-button ignition switch status signal R T R T R Rear window defogger control signal R R R T Steering lock unit status signal R T *: Models with paddle shifter T: data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted. -26 R R T T

27 < MT SS > MT SS MMUT SYSTM omponent arts ocation MMUT SYSTM [] : WM1101ZZ 1. S actuator and electric unit (control 2. TM M 10 unit) M /R M M19 6. ombination meter M24 7. ata link connector M22 8. Steering angle sensor M53 9. river seat control unit ir bag diagnosis sensor unit M / auto amp. M V control unit M46: Without V M139: With V -27

28 < MT SS > Wiring iagram - SYSTM - MMUT SYSTM [] : MW

29 < MT SS > MMUT SYSTM [] MW

30 < MT SS > MMUT SYSTM [] M

31 < MT SS > MMUT SYSTM [] M

32 < MT SS > MMUT SYSTM [] M

33 < MT SS > MMUT SYSTM [] M

34 < MT SS > MMUT SYSTM [] M

35 < MT SS > MMUT SYSTM [] M

36 < MT SS > MUT R RT Main ine MUT R RT [] : Malfunction rea Main line between driver seat control unit and / auto amp. Main line between driver seat control unit and air bag diagnosis sensor unit Main line between air bag diagnosis sensor unit and / auto amp. Main line between / auto amp. and data link connector Main line between data link connector and S actuator and electric unit (control unit) ranch ine Reference -37, "" -38, "" -39, "" -40, "" -41, "" : Malfunction rea M branch line circuit river seat control unit branch line circuit ir bag diagnosis sensor unit branch line circuit V control unit branch line circuit / auto amp. branch line circuit Steering angle sensor branch line circuit M branch line circuit ata link connector branch line circuit ombination meter branch line circuit S actuator and electric unit (control unit) branch line circuit TM branch line circuit M /R branch line circuit Short ircuit Reference -42, "" -43, "" -44, "" -45, "" -46, "" -47, "" -48, "" -49, "" -50, "" -51, "" -52, "" -53, "" : Malfunction rea communication circuit Reference -54, "" -36

37 < MT SS > M TW V RUT M TW V RUT [] : heck the following terminals and connectors for damage, bend and loose connection (connector side and harness side). - arness connector 1 - arness connector M6 2. RSS TUTY ( RUT) 1. isconnect the following harness connectors. - arness connectors 208 and 32 - arness connectors 1 and M6 2. heck the continuity between the harness connectors. arness connector arness connector 32 ontinuity 9 15 xisted xisted >> Repair the main line between the harness connectors 32 and RSS TUTY ( RUT) 1. isconnect the connector of / auto amp. 2. heck the continuity between the harness connector and the / auto amp. harness connector. arness connector / auto amp. harness connector M6 ontinuity 15 1 xisted M xisted YS (resent error)>>heck system type decision again. YS (ast error)>>rror was detected in the main line between the driver seat control unit and the / auto amp. >> Repair the main line between the harness connector M6 and the / auto amp. -37

38 < MT SS > M TW - RUT M TW - RUT [] : heck the following terminals and connectors for damage, bend and loose connection (connector side and harness side). - arness connector 1 - arness connector M6 2. RSS TUTY ( RUT) 1. isconnect the following harness connectors. - arness connectors 208 and 32 - arness connectors 1 and M6 2. heck the continuity between the harness connectors. arness connector arness connector 32 ontinuity 9 15 xisted xisted >> Repair the main line between the harness connectors 32 and RSS TUTY ( RUT) 1. isconnect the connector of / auto amp. 2. heck the continuity between the harness connector and the / auto amp. harness connector. arness connector / auto amp. harness connector M6 ontinuity 15 1 xisted M xisted YS (resent error)>>heck system type decision again. YS (ast error)>>rror was detected in the main line between the driver seat control unit and the air bag diagnosis sensor unit. >> Repair the main line between the harness connector M6 and the air bag diagnosis sensor unit. -38

39 < MT SS > M TW - V RUT M TW - V RUT [] : RSS TUTY ( RUT) 3. isconnect the following harness connectors. - Models without automatic drive positioner arness connectors 30 and M1 / auto amp. - Models with automatic drive positioner arness connectors 1 and M6 / auto amp. 4. heck the continuity between the harness connector and the / auto amp. harness connector. - Models without automatic drive positioner arness connector - Models with automatic drive positioner / auto amp. harness connector M1 arness connector ontinuity 51 1 xisted M xisted / auto amp. harness connector M6 ontinuity 15 1 xisted M xisted YS (resent error)>>heck system type decision again. YS (ast error)>>rror was detected in the main line between the air bag diagnosis sensor unit and the / auto amp. >> Repair the main line between the air bag diagnosis sensor unit and the / auto amp. -39

40 < MT SS > M TW V RUT M TW V RUT [] : RSS TUTY ( RUT) 3. isconnect the following harness connectors. - M - / auto amp. 4. heck the continuity between the / auto amp. harness connector and the data link connector. / auto amp. harness connector ata link connector M37 ontinuity 1 6 xisted M xisted YS (resent error)>>heck system type decision again. YS (ast error)>>rror was detected in the main line between the / auto amp. and the data link connector. >> Repair the main line between the / auto amp. and the data link connector. -40

41 < MT SS > M TW S RUT M TW S RUT [] : heck the following terminals and connectors for damage, bend and loose connection (connector side and harness side). - arness connector M1 - arness connector RSS TUTY ( RUT) 1. isconnect the harness connectors M1 and heck the continuity between the data link connector and the harness connector. ata link connector arness connector M22 >> Repair the main line between the data link connector and the harness connector M1. 3. RSS TUTY ( RUT) ontinuity 6 15 xisted M xisted 1. isconnect the connector of S actuator and electric unit (control unit). 2. heck the continuity between the harness connector and the S actuator and electric unit (control unit) harness connector. arness connector S actuator and electric unit (control unit) harness connector 30 ontinuity xisted xisted YS (resent error)>>heck system type decision again. YS (ast error)>>rror was detected in the main line between the data link connector and the S actuator and electric unit (control unit). >> Repair the main line between the harness connector 30 and the S actuator and electric unit (control unit). -41

42 < MT SS > M R RUT M R RUT [] : heck the following terminals and connectors for damage, bend and loose connection (unit side and connector side). - Models without automatic drive positioner M arness connector 30 arness connector M1 - Models with automatic drive positioner M arness connector 29 arness connector RSS R RUT 1. isconnect the connector of M. 2. heck the resistance between the M harness connector terminals. M harness connector pprox >> Repair the M branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the M. Refer to -143, "". YS (resent error)>>replace the M. Refer to -13, "S ST : Special Repair Requirement". YS (ast error)>>rror was detected in the M branch line. >> Repair the power supply and the ground circuit. -42

43 < MT SS > R RUT R RUT [] : heck the following terminals and connectors for damage, bend and loose connection (unit side and connector side). - river seat control unit - arness connector arness connector RSS R RUT 1. isconnect the connector of driver seat control unit. 2. heck the resistance between the driver seat control unit harness connector terminals. river seat control unit harness connector pprox >> Repair the driver seat control unit branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the driver seat control unit. Refer to -46, "RVR ST TR UT : ". YS (resent error)>>replace the driver seat control unit. Refer to -193, "Removal and nstallation". YS (ast error)>>rror was detected in the driver seat control unit branch line. >> Repair the power supply and the ground circuit. -43

44 < MT SS > - R RUT - R RUT [] : R SS SSR UT heck the air bag diagnosis sensor unit. Refer to SR-3, "Work low". YS >> Replace the main harness. >> Replace parts whose air bag system has a malfunction. -44

45 < MT SS > V R RUT V R RUT [] : heck the terminals and connectors of the V control unit for damage, bend and loose connection (unit side and connector side). 2. RSS R RUT 1. isconnect the connector of V control unit. 2. heck the resistance between the V control unit harness connector terminals. - Models without V V control unit harness connector M pprox Models with V V control unit harness connector M pprox >> Repair the V control unit branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the V control unit. Refer to the following. Models with S audio without navigation: V-218, "V TR UT : " Models with S audio with navigation: V-399, "V TR UT : " YS (resent error)>>replace the V control unit. Refer to the following. Models with S audio without navigation: V-313, "Removal and nstallation" Models with S audio with navigation: V-485, "Removal and nstallation" YS (ast error)>>rror was detected in the V control unit branch line. >> Repair the power supply and the ground circuit. -45

46 < MT SS > V R RUT V R RUT [] : heck the terminals and connectors of the / auto amp. for damage, bend and loose connection (unit side and connector side). 2. RSS R RUT 1. isconnect the connector of / auto amp. 2. heck the resistance between the / auto amp. harness connector terminals. / auto amp. harness connector M pprox >> Repair the / auto amp. branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the / auto amp. Refer to the following. Models with color display: -63, "/ UT M. : " Models with monochrome display: -186, "/ UT M. : " YS (resent error)>>replace the / auto amp. Refer to -123, "Removal and nstallation" (with color display) or -231, "Removal and nstallation" (with monochrome display). YS (ast error)>>rror was detected in the / auto amp. branch line. >> Repair the power supply and the ground circuit. -46

47 < MT SS > STR R RUT STR R RUT [] : heck the terminals and connectors of the steering angle sensor for damage, bend and loose connection (unit side and connector side). 2. RSS R RUT 1. isconnect the connector of steering angle sensor. 2. heck the resistance between the steering angle sensor harness connector terminals. Steering angle sensor harness connector M pprox >> Repair the steering angle sensor branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the steering angle sensor. Refer to R-79, "Wiring iagram". YS (resent error)>>replace the steering angle sensor. Refer to R-106, "Removal and nstallation". YS (ast error)>>rror was detected in the steering angle sensor branch line. >> Repair the power supply and the ground circuit. -47

48 < MT SS > M R RUT M R RUT [] : heck the terminals and connectors of the M for damage, bend and loose connection (unit side and connector side). 2. RSS R RUT 1. isconnect the connector of M. 2. heck the resistance between the M harness connector terminals. M harness connector M pprox >> Repair the M branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the M. Refer to S-41, "". YS (resent error)>>replace the M. Refer to S-87, "Removal and nstallation". YS (ast error)>>rror was detected in the M branch line. >> Repair the power supply and the ground circuit. -48

49 < MT SS > R RUT R RUT [] : heck the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side). 2. RSS R RUT heck the resistance between the data link connector terminals. ata link connector M pprox YS (resent error)>>heck system type decision again. YS (ast error)>>rror was detected in the data link connector branch line circuit. >> Repair the data link connector branch line. -49

50 < MT SS > M& R RUT M& R RUT [] : heck the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). 2. RSS R RUT 1. isconnect the connector of combination meter. 2. heck the resistance between the combination meter harness connector terminals. ombination meter harness connector M pprox >> Repair the combination meter branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the combination meter. Refer to MW-37, "MT MTR : ". YS (resent error)>>replace the combination meter. Refer to MW-144, "Removal and nstallation". YS (ast error)>>rror was detected in the combination meter branch line. >> Repair the power supply and the ground circuit. -50

51 < MT SS > S R RUT S R RUT [] : heck the terminals and connectors of the S actuator and electric unit (control unit) for damage, bend and loose connection (unit side and connector side). 2. RSS R RUT 1. isconnect the connector of S actuator and electric unit (control unit). 2. heck the resistance between the S actuator and electric unit (control unit) harness connector terminals. S actuator and electric unit (control unit) harness connector pprox >> Repair the S actuator and electric unit (control unit) branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the S actuator and electric unit (control unit). Refer to R-79, "Wiring iagram". YS (resent error)>>replace the S actuator and electric unit (control unit). Refer to R-103, "xploded View". YS (ast error)>>rror was detected in the S actuator and electric unit (control unit) branch line. >> Repair the power supply and the ground circuit. -51

52 < MT SS > TM R RUT TM R RUT [] : heck the following terminals and connectors for damage, bend and loose connection (unit side and connector side). - TM - arness connector 1 - arness connector 3 2. RSS R RUT 1. isconnect the connector of TM. 2. heck the resistance between the TM harness connector terminals. TM harness connector pprox >> Repair the TM branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the TM. Refer to TM-122, "Wiring iagram - VT - TR SYSTM -". YS (resent error)>>replace the TM. Refer to TM-166, "xploded View". YS (ast error)>>rror was detected in the TM branch line. >> Repair the power supply and the ground circuit. -52

53 < MT SS > M- R RUT M- R RUT [] : heck the terminals and connectors of the M /R for damage, bend and loose connection (unit side and connector side). 2. RSS R RUT 1. isconnect the connector of M /R. 2. heck the resistance between the M /R harness connector terminals. M /R harness connector pprox >> Repair the M /R branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the M /R. Refer to S-21, "". YS (resent error)>>replace the M /R. Refer to S-40, "Removal and nstallation". YS (ast error)>>rror was detected in the M /R branch line. >> Repair the power supply and the ground circuit. -53

54 < MT SS > MMUT RUT MMUT RUT [] : TR ST 3. isconnect all the unit connectors on communication system. 4. heck terminals and connectors for damage, bend and loose connection. 2. RSS TUTY (SRT RUT) heck the continuity between the data link connector terminals. ata link connector ontinuity M ot existed >> heck the harness and repair the root cause. 3. RSS TUTY (SRT RUT) heck the continuity between the data link connector and the ground. ata link connector ontinuity round 6 ot existed M22 14 ot existed YS >> T 4. >> heck the harness and repair the root cause. 4. M M /R TRMT RUT 1. Remove the M and the M /R. 2. heck the resistance between the M terminals. M pprox heck the resistance between the M /R terminals. M /R pprox YS >> T 5. >> Replace the M and/or the M /R. 5. SYMTM

55 < MT SS > MMUT RUT [] onnect all the connectors. heck if the symptoms described in the Symptom (Results from interview with customer) are reproduced. nspection result Reproduced>> T 6. on-reproduced>>start the diagnosis again. ollow the trouble diagnosis procedure when past error is detected. 6. UT RRUT erform the reproduction test as per the following procedure for each unit. 3. isconnect one of the unit connectors of communication system. T: M and M /R have a termination circuit. heck other units first. 4. onnect the battery cable to the negative terminal. heck if the symptoms described in the Symptom (Results from interview with customer) are reproduced. T: lthough unit-related error symptoms occur, do not confuse them with other symptoms. nspection result Reproduced>>onnect the connector. heck other units as per the above procedure. on-reproduced>>replace the unit whose connector was disconnected. -55

56 M TW - V RUT < MT SS > [ SYSTM (TY 1)] MT SS M TW - V RUT 1. RSS TUTY ( RUT) 3. isconnect the following harness connectors. - Models without automatic drive positioner arness connectors 30 and M1 / auto amp. - Models with automatic drive positioner arness connectors 1 and M6 / auto amp. 4. heck the continuity between the harness connector and the / auto amp. harness connector. - Models without automatic drive positioner arness connector - Models with automatic drive positioner / auto amp. harness connector M1 arness connector : ontinuity 51 1 xisted M xisted / auto amp. harness connector M6 ontinuity 15 1 xisted M xisted YS (resent error)>>heck system type decision again. YS (ast error)>>rror was detected in the main line between the air bag diagnosis sensor unit and the / auto amp. >> Repair the main line between the air bag diagnosis sensor unit and the / auto amp. -56

57 M TW V RUT < MT SS > [ SYSTM (TY 1)] M TW V RUT 1. RSS TUTY ( RUT) 3. isconnect the following harness connectors. - M - / auto amp. 4. heck the continuity between the / auto amp. harness connector and the data link connector. / auto amp. harness connector ata link connector M37 : ontinuity 1 6 xisted M xisted YS (resent error)>>heck system type decision again. YS (ast error)>>rror was detected in the main line between the / auto amp. and the data link connector. >> Repair the main line between the / auto amp. and the data link connector. -57

58 M TW S RUT < MT SS > [ SYSTM (TY 1)] M TW S RUT : heck the following terminals and connectors for damage, bend and loose connection (connector side and harness side). - arness connector M1 - arness connector RSS TUTY ( RUT) 1. isconnect the harness connectors M1 and heck the continuity between the data link connector and the harness connector. ata link connector arness connector M22 >> Repair the main line between the data link connector and the harness connector M1. ontinuity 6 15 xisted M xisted 3. RSS TUTY ( RUT) 1. isconnect the connector of S actuator and electric unit (control unit). 2. heck the continuity between the harness connector and the S actuator and electric unit (control unit) harness connector. arness connector S actuator and electric unit (control unit) harness connector 30 ontinuity xisted xisted YS (resent error)>>heck system type decision again. YS (ast error)>>rror was detected in the main line between the data link connector and the S actuator and electric unit (control unit). >> Repair the main line between the harness connector 30 and the S actuator and electric unit (control unit). -58

59 M R RUT < MT SS > [ SYSTM (TY 1)] M R RUT : heck the following terminals and connectors for damage, bend and loose connection (unit side and connector side). - Models without automatic drive positioner M arness connector 30 arness connector M1 - Models with automatic drive positioner M arness connector 29 arness connector RSS R RUT 1. isconnect the connector of M. 2. heck the resistance between the M harness connector terminals. M harness connector pprox >> Repair the M branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the M. Refer to -143, "". YS (resent error)>>replace the M. Refer to -13, "S ST : Special Repair Requirement". YS (ast error)>>rror was detected in the M branch line. >> Repair the power supply and the ground circuit. -59

60 - R RUT < MT SS > [ SYSTM (TY 1)] - R RUT 1. R SS SSR UT heck the air bag diagnosis sensor unit. Refer to SR-3, "Work low". YS >> Replace the main harness. >> Replace parts whose air bag system has a malfunction. :

61 V R RUT < MT SS > [ SYSTM (TY 1)] V R RUT : heck the terminals and connectors of the / auto amp. for damage, bend and loose connection (unit side and connector side). 2. RSS R RUT 1. isconnect the connector of / auto amp. 2. heck the resistance between the / auto amp. harness connector terminals. / auto amp. harness connector M pprox >> Repair the / auto amp. branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the / auto amp. Refer to the following. Models with color display: -63, "/ UT M. : " Models with monochrome display: -186, "/ UT M. : " YS (resent error)>>replace the / auto amp. Refer to -123, "Removal and nstallation" (with color display) or -231, "Removal and nstallation" (with monochrome display). YS (ast error)>>rror was detected in the / auto amp. branch line. >> Repair the power supply and the ground circuit. -61

62 STR R RUT < MT SS > [ SYSTM (TY 1)] STR R RUT : heck the terminals and connectors of the steering angle sensor for damage, bend and loose connection (unit side and connector side). 2. RSS R RUT 1. isconnect the connector of steering angle sensor. 2. heck the resistance between the steering angle sensor harness connector terminals. Steering angle sensor harness connector M pprox >> Repair the steering angle sensor branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the steering angle sensor. Refer to R-79, "Wiring iagram". YS (resent error)>>replace the steering angle sensor. Refer to R-106, "Removal and nstallation". YS (ast error)>>rror was detected in the steering angle sensor branch line. >> Repair the power supply and the ground circuit. -62

63 M R RUT < MT SS > [ SYSTM (TY 1)] M R RUT : heck the terminals and connectors of the M for damage, bend and loose connection (unit side and connector side). 2. RSS R RUT 1. isconnect the connector of M. 2. heck the resistance between the M harness connector terminals. M harness connector M pprox >> Repair the M branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the M. Refer to S-41, "". YS (resent error)>>replace the M. Refer to S-87, "Removal and nstallation". YS (ast error)>>rror was detected in the M branch line. >> Repair the power supply and the ground circuit. -63

64 R RUT < MT SS > [ SYSTM (TY 1)] R RUT : heck the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side). 2. RSS R RUT heck the resistance between the data link connector terminals. ata link connector M pprox YS (resent error)>>heck system type decision again. YS (ast error)>>rror was detected in the data link connector branch line circuit. >> Repair the data link connector branch line. -64

65 M& R RUT < MT SS > [ SYSTM (TY 1)] M& R RUT : heck the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). 2. RSS R RUT 1. isconnect the connector of combination meter. 2. heck the resistance between the combination meter harness connector terminals. ombination meter harness connector M pprox >> Repair the combination meter branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the combination meter. Refer to MW-37, "MT MTR : ". YS (resent error)>>replace the combination meter. Refer to MW-144, "Removal and nstallation". YS (ast error)>>rror was detected in the combination meter branch line. >> Repair the power supply and the ground circuit. -65

66 S R RUT < MT SS > [ SYSTM (TY 1)] S R RUT : heck the terminals and connectors of the S actuator and electric unit (control unit) for damage, bend and loose connection (unit side and connector side). 2. RSS R RUT 1. isconnect the connector of S actuator and electric unit (control unit). 2. heck the resistance between the S actuator and electric unit (control unit) harness connector terminals. S actuator and electric unit (control unit) harness connector pprox >> Repair the S actuator and electric unit (control unit) branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the S actuator and electric unit (control unit). Refer to R-79, "Wiring iagram". YS (resent error)>>replace the S actuator and electric unit (control unit). Refer to R-103, "xploded View". YS (ast error)>>rror was detected in the S actuator and electric unit (control unit) branch line. >> Repair the power supply and the ground circuit. -66

67 TM R RUT < MT SS > [ SYSTM (TY 1)] TM R RUT : heck the following terminals and connectors for damage, bend and loose connection (unit side and connector side). - TM - arness connector 1 - arness connector 3 2. RSS R RUT 1. isconnect the connector of TM. 2. heck the resistance between the TM harness connector terminals. TM harness connector pprox >> Repair the TM branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the TM. Refer to TM-122, "Wiring iagram - VT - TR SYSTM -". YS (resent error)>>replace the TM. Refer to TM-166, "xploded View". YS (ast error)>>rror was detected in the TM branch line. >> Repair the power supply and the ground circuit. -67

68 M- R RUT < MT SS > [ SYSTM (TY 1)] M- R RUT : heck the terminals and connectors of the M /R for damage, bend and loose connection (unit side and connector side). 2. RSS R RUT 1. isconnect the connector of M /R. 2. heck the resistance between the M /R harness connector terminals. M /R harness connector pprox >> Repair the M /R branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the M /R. Refer to S-21, "". YS (resent error)>>replace the M /R. Refer to S-40, "Removal and nstallation". YS (ast error)>>rror was detected in the M /R branch line. >> Repair the power supply and the ground circuit. -68