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Power Mirror Control (Diagnostics): Overview Lexus LX J200

Mirrors 25 illustrations ~5389 words

Scheme 36

Scheme 36: ILLUSTRATION
Scheme 36: ILLUSTRATION

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Scheme 37: ILLUSTRATION
Scheme 37: ILLUSTRATION

Scheme 38

Scheme 38: SYSTEM DIAGRAM
Scheme 38: SYSTEM DIAGRAM
SenderReceiverSignalLine
Main body ECUOuter mirror control ECUMirror master switch signal Mirror control switch signal Mirror retract switch signalCAN
Position control ECU and switchOuter mirror control ECUMirror position storage signal Mirror position reproduction signalCAN
ECMOuter mirror control ECUReverse signalCAN

COMMUNICATION TABLE

SYSTEM DESCRIPTION

  1. POWER MIRROR CONTROL SYSTEM DESCRIPTION This system has the following functions: automatic glare-resistant electrochromic (EC) mirror, reverse shift-linked mirror, electrical remote control type mirror, memory function, and rear window defogger-linked mirror heater.
  2. FUNCTION OF MAIN COMPONENT Components Function Vertical mirror motor Receives a signal from the mirror control ECU and adjusts the remote control mirror vertically. Horizontal mirror motor Receives a signal from the mirror control ECU and adjusts the remote control mirror horizontally. Mirror retract motor Receives a signal from the mirror control ECU, and retracts and returns the remote control mirror. Mirror heater Receives a signal from the A/C amplifier and starts the mirror heater. EC mirror cell Varies the reflection rate of the mirror through the function of the EC elements. Mirror retract switch Retracts and returns the remote control mirror. Mirror retract and return signals are sent to the mirror control ECU from the main body ECU. Mirror master switch Consists of R and L switches. One must be chosen before the mirror control switches can be operated. Outer mirror control ECU Sends operation signals to each motor. Mirror control switch Mirror R and L signals are sent to the outer mirror control ECU from the outer mirror switch. After selecting the R or L switch, the right, left, up and down control switches change the angle of the mirror. Mirror position sensor Detects the remote control mirror position. This data is detected by the mirror control ECU. Seat memory switch When the seat memory SET switch and seat memory switch are pressed simultaneously, a signal is input to the outer mirror control ECU and the position control ECU and switch, which records the mirror position. When the seat memory switch is pressed, a signal is input to the mirror control ECU and sent to the position control ECU and switch which changes the mirror position to the recorded position.
  3. SYSTEM OPERATION The remote control mirror has the following features. Function Outline Manual electrical retractable mirror When the mirror retract switch is pushed to the fold position, the mirror body moves to the retracted position. When the mirror retract switch is pushed to the return position, the mirror body moves to the driving position. Auto electrical retractable mirror When the mirror retract switch is set to the AUTO position, the mirror body moves to the retracted or driving position according to whether the vehicle is locked or unlocked. Reverse shift-linked mirror Directs the mirror surface downward to improve visibility when driving in reverse and all the conditions below are met: The engine switch is on (IG). The shift lever is moved from other than R to R. The mirror master switch is in the R or L position. Electrical remote control type mirror When the mirror control switch is operated, this function moves the mirror surface vertically or horizontally to enable the driver to attain optimal mirror angle. Setting the mirror master switch to the R position operates the right mirror, and setting it to the L position operates the left mirror. Rear window defogger-linked mirror heater Automatically turns on the mirror heater when the rear window defogger switch is turned on. The rear window defogger and mirror heater automatically turn off after 15 min. Automatic glare-resistant EC mirror Reduces glare/reflection in the mirror during nighttime driving for safe driving conditions. Glare/reflection from vehicle headlights from behind could blind the driver and cause dangerous driving conditions. Memory function Stores the adjusted mirror position in the outer mirror control ECU.

This circuit detects the conditions of the outer mirror switch.

The outer mirror switch sends information about the operating condition of the mirror switch (switch input signals) through the CAN communication line. Then the switch input signals are sent to the outer mirror control ECU. Mirror adjustment is controlled by the outer mirror control ECU.

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Scheme 39: WIRING DIAGRAM
Scheme 39: WIRING DIAGRAM

Scheme 40

Scheme 40: PROCEDURE
Scheme 40: PROCEDURE

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Scheme 43
  1. CHECK DTC Use the Techstream to check if the CAN communication system is functioning normally. Refer to «DIAGNOSIS SYSTEM». RESULT Result Proceed to CAN DTC is not output A CAN DTC is output B B --> See step 8 A: Go to next step
  2. READ VALUE USING TECHSTREAM (OUTER MIRROR SWITCH) Check the Data List for proper functioning of the mirror master switch and mirror control switch. Refer to «DATA LIST / ACTIVE TEST». MAIN BODY Tester Display Measurement Item/Range Normal Condition Diagnostic Note Mirror Selection SW (L) Mirror master switch signal for LH mirror / ON or OFF ON: Switch in L position OFF: Switch off or in R position - Mirror Position SW (R) Mirror control switch signal (right) / ON or OFF ON: Right switch on OFF: Any switch except right on or all switches off - Mirror Position SW (L) Mirror control switch signal (left) / ON or OFF ON: Left switch on OFF: Any switch except left on or all switches off - Mirror Position SW (Up) Mirror control switch signal (up) / ON or OFF ON: Up switch on OFF: Any switch except up on or all switches off - Mirror Position SW (Dwn) Mirror control switch signal (down) / ON or OFF ON: Down switch on OFF: Any switch except down on or all switches off - OK On the Techstream screen, each item changes between ON and OFF according to above chart. NG --> See step 6 OK: Go to next step
  3. PERFORM ACTIVE TEST USING TECHSTREAM (POWER MIRROR CONTROL FUNCTION) Select the Active Test, use the Techstream to generate a control command, and then check the power mirror control function. Refer to «DATA LIST / ACTIVE TEST». MIRROR Tester Display Test Part Control Range Diagnostic Note LH Mirror Up/Down Mirror vertical operation Up / OFF / Down - LH Mirror Right/Left Mirror horizontal operation Right / OFF / Left - RESULT Result Proceed to Outer rear view mirror LH does not operate normally A Outer rear view mirror LH operates normally B B --> See step 10 A: Go to next step
  4. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH Remove the mirror LH. Refer to «REMOVAL». Apply battery voltage and check the operation of the power mirror. OK Measurement Condition Specified Condition Battery positive (+) --> Terminal 5 (MV) Battery negative (-) --> Terminal 6 (M+) Turns upward (A) Battery negative (-) --> Terminal 5 (MV) Battery positive (+) --> Terminal 6 (M+) Turns downward (B) Battery positive (+) --> Terminal 7 (MH) Battery negative (-) --> Terminal 6 (M+) Turns left (C) Battery negative (-) --> Terminal 7 (MH) Battery positive (+) --> Terminal 6 (M+) Turns right (D) NG --> See step 9 OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU - OUTER REAR VIEW MIRROR LH) Disconnect the I18 ECU connector. Disconnect the I15 mirror connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I18-18 (M+L) - I15-6 (M+) Always Below 1 ohms I18-19 (MHL) - I15-7 (MH) I18-20 (MVL) - I15-5 (MV) I15-6 (M+) - Body ground Always 10 kohms or higher I15-7 (MH) - Body ground I15-5 (MV) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 10
  6. INSPECT OUTER MIRROR SWITCH ASSEMBLY Remove the outer mirror switch. Refer to «REMOVAL». Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition 8 (M+) - 6 (E) Up switch pushed 90 to 110 ohms Down switch pushed 437 to 502 ohms Left switch pushed 744 to 856 ohms Right switch pushed 207 to 253 ohms No switches pushed 10 kohms or higher 3 (MSW) - 6 (E) Mirror master switch L 90 to 110 ohms Mirror master switch off 10 kohms or higher NG --> See step 11 OK: Go to next step
  7. CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH - MAIN BODY ECU) Disconnect the E1 ECU connector. Disconnect the E94 switch connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E1-2 (MIRE) - E94-6 (E) Always Below 1 ohms E1-11 (MIRB) - E94-8 (M+) Always Below 1 ohms E1-12 (MIRS) - E94-3 (MSW) Always Below 1 ohms E94-8 (M+) - Body ground Always 10 kohms or higher E94-6 (E) - Body ground Always 10 kohms or higher E94-3 (MSW) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)
  8. GO TO CAN COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»
  9. REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH. Refer to «REMOVAL»
  10. REPLACE OUTER MIRROR CONTROL ECU. Refer to «REMOVAL»
  11. REPLACE OUTER MIRROR SWITCH ASSEMBLY. Refer to «REMOVAL»

The circuit detects the conditions of the outer mirror switch.

The outer mirror switch sends information about the operating condition of the mirror switch (switch input signals) through the CAN communication line. Then the switch input signals are sent to the outer mirror control ECU. Mirror adjustment is controlled by the outer mirror control ECU.

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Scheme 44: WIRING DIAGRAM
Scheme 44: WIRING DIAGRAM

Scheme 45

Scheme 45: PROCEDURE
Scheme 45: PROCEDURE

Scheme 46

Scheme 46
Scheme 46
  1. CHECK DTC Use the Techstream to check if the CAN communication system is functioning normally. Refer to «DIAGNOSIS SYSTEM». RESULT Result Proceed to CAN DTC is not output A CAN DTC is output B B --> See step 8 A: Go to next step
  2. READ VALUE USING TECHSTREAM (OUTER MIRROR SWITCH) Check the Data List for proper functioning of the outer mirror switch. Refer to «DATA LIST / ACTIVE TEST». MAIN BODY Tester Display Measurement Item/Range Normal Condition Diagnostic Note Mirror Selection SW (R) Mirror master switch signal for RH mirror / ON or OFF ON: Switch in R position OFF: Switch off or in L position - Mirror Position SW (R) Mirror control switch signal (right) / ON or OFF ON: Right switch on OFF: Any switch except right on or all switches off - Mirror Position SW (L) Mirror control switch signal (left) / ON or OFF ON: Left switch on OFF: Any switch except left on or all switches off - Mirror Position SW (Up) Mirror control switch signal (up) / ON or OFF ON: Up switch on OFF: Any switch except up on or all switches off - Mirror Position SW (Dwn) Mirror control switch signal (down) / ON or OFF ON: Down switch on OFF: Any switch except down on or all switches off - OK On the Techstream screen, each item changes between ON and OFF according to above chart. NG --> See step 6 OK: Go to next step
  3. PERFORM ACTIVE TEST USING TECHSTREAM (POWER MIRROR CONTROL FUNCTION) Select the Active Test, use the Techstream to generate a control command, and then check the power mirror control function. Refer to «DATA LIST / ACTIVE TEST». MIRROR Tester Display Test Part Control Range Diagnostic Note RH Mirror Up/Down Mirror vertical operation Up / OFF / Down - RH Mirror Right/Left Mirror horizontal operation Right / OFF / Left - RESULT Result Proceed to Outer rear view mirror RH does not operate normally A Outer rear view mirror RH operates normally B B --> See step 10 A: Go to next step
  4. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH Remove the mirror RH. Refer to «REMOVAL». Apply battery voltage and check the operation of the power mirror. OK Measurement Condition Specified Condition Battery positive (+) --> Terminal 5 (MV) Battery negative (-) --> Terminal 6 (M+) Turns upward (A) Battery negative (-) --> Terminal 5 (MV) Battery positive (+) --> Terminal 6 (M+) Turns downward (B) Battery positive (+) --> Terminal 7 (MH) Battery negative (-) --> Terminal 6 (M+) Turns left (C) Battery negative (-) --> Terminal 7 (MH) Battery positive (+) --> Terminal 6 (M+) Turns right (D) NG --> See step 9 OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR RH - OUTER MIRROR CONTROL ECU) Disconnect the I18 ECU connector. Disconnect the I7 mirror connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I18-38 (M+R) - I7-6 (M+) Always Below 1 ohms I18-39 (MHR) - I7-7 (MH) I18-40 (MVR) - I7-5 (MV) I7-6 (M+) - Body ground Always 10 kohms or higher I7-7 (MH) - Body ground I7-5 (MV) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 10
  6. INSPECT OUTER MIRROR SWITCH ASSEMBLY Remove the outer mirror switch. Refer to «REMOVAL». Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition 8 (M+) - 6 (E) Up switch pushed 90 to 110 ohms Down switch pushed 437 to 502 ohms Left switch pushed 744 to 856 ohms Right switch pushed 207 to 253 ohms No switches pushed 10 kohms or higher 3 (MSW) - 6 (E) Mirror master switch R Below 1 ohms Mirror master switch off 10 kohms or higher NG --> See step 11 OK: Go to next step
  7. CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH - MAIN BODY ECU) Disconnect the E1 ECU connector. Disconnect the E94 switch connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E1-2 (MIRE) - E94-6 (E) Always Below 1 ohms E1-11 (MIRB) -E94-8 (M+) E1-12 (MIRS) - E94-3 (MSW) E94-6 (E) - Body ground Always 10 kohms or higher E94-8 (M+) - Body ground E94-3 (MSW) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)
  8. GO TO CAN COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»
  9. REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH. Refer to «REMOVAL»
  10. REPLACE OUTER MIRROR CONTROL ECU. Refer to «REMOVAL»
  11. REPLACE OUTER MIRROR SWITCH ASSEMBLY. Refer to «REMOVAL»

This circuit detects the conditions of the mirror retract switch.

The outer mirror switch sends information about the operating condition of the mirror retract switch (switch input signals) through the CAN communication line. Then the switch input signals are sent to the outer mirror control ECU.

Scheme 47

Scheme 47: WIRING DIAGRAM
Scheme 47: WIRING DIAGRAM

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Scheme 48: PROCEDURE
Scheme 48: PROCEDURE

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Scheme 53
Scheme 53
  1. CHECK DTC Use the Techstream to check if the CAN communication system is functioning normally. Refer to «DIAGNOSIS SYSTEM». RESULT Result Proceed to CAN DTC is not output A CAN DTC is output B B --> See step 10 A: Go to next step
  2. READ VALUE USING TECHSTREAM (MIRROR RETRACT SWITCH) Check the Data List for proper functioning of the mirror retract switch. Refer to «DATA LIST / ACTIVE TEST». MAIN BODY Tester Display Measurement Item/Range Normal Condition Diagnostic Note Outer Mirror Fold SW Mirror retract switch signal (fold) / ON or OFF ON: Switch in fold position OFF: Switch not in fold position - Auto Mirror SW Mirror retract switch signal (AUTO) / ON or OFF ON: Switch in AUTO position OFF: Switch not in AUTO position - OK On the Techstream screen, each item changes between ON and OFF according to above chart. NG --> See step 4 OK: Go to next step
  3. PERFORM ACTIVE TEST USING TECHSTREAM (MIRROR RETRACT FUNCTION) Select the Active Test, use the Techstream to generate a control command, and then check the power mirror control function. Refer to «DATA LIST / ACTIVE TEST». MIRROR Tester Display Test Part Control Range Diagnostic Note Mirror Fold Mirror retract operation ON / OFF - Mirror Return Mirror retract operation ON / OFF - RESULT Result Proceed to Outer rear view mirror operates normally A Outer rear view mirror LH does not operate normally B Outer rear view mirror RH does not operate normally C C --> See step 8 B --> See step 6 A --> See step 13
  4. INSPECT OUTER MIRROR SWITCH ASSEMBLY (MIRROR RETRACT SWITCH) Remove the outer mirror switch. Refer to «REMOVAL». Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition 5 (E) - 1 (MR) Mirror retract switch in fold position Below 1 ohms Mirror retract switch not in fold position 10 kohms or higher 5 (E) - 2 (MAT) Mirror retract switch in AUTO position Below 1 ohms Mirror retract switch not in AUTO position 10 kohms or higher NG --> See step 11 OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH - MAIN BODY ECU AND BODY GROUND) Disconnect the E2 and E4 ECU connectors. Disconnect the E95 switch connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E2-6 (RET) - E95-1 (MR) Always Below 1 ohms E95-5 (E) - Body ground E4-8 (AMR) - E95-2 (MAT) E95-1 (MR) - Body ground Always 10 kohms or higher E95-2 (MAT) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)
  6. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH Remove the mirror LH. Refer to «REMOVAL». For each mirror position: Disconnect the battery, set the mirror position by hand, connect the battery, and check the retractable mirror movement. NOTE: Disconnect and reconnect the battery once between each mirror position check. The mirror position cannot be changed manually when the battery is connected. To change the mirror position manually, the battery must be disconnected first. OK Measurement Condition Mirror Position Specified Condition Battery positive (+) --> Terminal 15 (MR) Battery negative (-) --> Terminal 16 (MF) Forward position (A) Moves from (A) to retracted position (E) Battery negative (-) --> Terminal 15 (MR) Battery positive (+) --> Terminal 16 (MF) Forward position (A) Does not move Battery positive (+) --> Terminal 15 (MR) Battery negative (-) --> Terminal 16 (MF) Position between forward position (A) and driving position (C) Moves from (B) to retracted position (E) Battery negative (-) --> Terminal 15 (MR) Battery positive (+) --> Terminal 16 (MF) Position between forward position (A) and driving position (C) Moves from (B) to forward position (A) Battery positive (+) --> Terminal 15 (MR) Battery negative (-) --> Terminal 16 (MF) Driving position (C) Moves from (C) to retracted position (E) Battery negative (-) --> Terminal 15 (MR) Battery positive (+) --> Terminal 16 (MF) Driving position (C) Does not move Battery positive (+) --> Terminal 15 (MR) Battery negative (-) --> Terminal 16 (MF) Position between driving position (C) and retracted position (E) Moves from (D) to retracted position (E) Battery negative (-) --> Terminal 15 (MR) Battery positive (+) --> Terminal 16 (MF) Position between driving position (C) and retracted position (E) Moves from (D) to driving position (C) Battery positive (+) --> Terminal 15 (MR) Battery negative (-) --> Terminal 16 (MF) Retracted position (E) Does not move Battery negative (-) --> Terminal 15 (MR) Battery positive (+) --> Terminal 16 (MF) Retracted position (E) Moves from (E) to driving position (C) NG --> See step 12 OK: Go to next step
  7. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR LH - OUTER MIRROR CONTROL ECU) Disconnect the I17 ECU connector. Disconnect the I15 mirror connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I17-1 (RL) - I15-15 (MR) Always Below 1 ohms I17-2 (FL) - I15-16 (MF) I15-15 (MR) - Body ground Always 10 kohms or higher I15-16 (MF) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 13
  8. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH Remove the mirror RH. Refer to «REMOVAL». For each mirror position: Disconnect the battery, set the mirror position by hand, connect the battery, and check the retractable mirror movement. NOTE: Disconnect and reconnect the battery once between each mirror position check. The mirror position cannot be changed manually when the battery is connected. To change the mirror position manually, the battery must be disconnected first. OK Measurement Condition Mirror Position Specified Condition Battery positive (+) --> Terminal 15 (MR) Battery negative (-) --> Terminal 16 (MF) Forward position (A) Moves from (A) to retracted position (E) Battery negative (-) --> Terminal 15 (MR) Battery positive (+) --> Terminal 16 (MF) Forward position (A) Does not move Battery positive (+) --> Terminal 15 (MR) Battery negative (-) --> Terminal 16 (MF) Position between forward position (A) and driving position (C) Moves from (B) to retracted position (E) Battery negative (-) --> Terminal 15 (MR) Battery positive (+) --> Terminal 16 (MF) Position between forward position (A) and driving position (C) Moves from (B) to forward position (A) Battery positive (+) --> Terminal 15 (MR) Battery negative (-) --> Terminal 16 (MF) Driving position (C) Moves from (C) to retracted position (E) Battery negative (-) --> Terminal 15 (MR) Battery positive (+) --> Terminal 16 (MF) Driving position (C) Does not move Battery positive (+) --> Terminal 15 (MR) Battery negative (-) --> Terminal 16 (MF) Position between driving position (C) and retracted position (E) Moves from (D) to retracted position (E) Battery negative (-) --> Terminal 15 (MR) Battery positive (+) --> Terminal 16 (MF) Position between driving position (C) and retracted position (E) Moves from (D) to driving position (C) Battery positive (+) --> Terminal 15 (MR) Battery negative (-) --> Terminal 16 (MF) Retracted position (E) Does not move Battery negative (-) --> Terminal 15 (MR) Battery positive (+) --> Terminal 16 (MF) Retracted position (E) Moves from (E) to driving position (C) NG --> See step 14 OK: Go to next step
  9. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR RH - OUTER MIRROR CONTROL ECU) Disconnect the I17 ECU connector. Disconnect the I7 mirror connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I17-5 (RR) - I7-15 (MR) Always Below 1 ohms I17-6 (FR) - I7-16 (MF) I7-15 (MR) - Body ground Always 10 kohms or higher I7-16 (MF) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 13
  10. GO TO CAN COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»
  11. REPLACE OUTER MIRROR SWITCH ASSEMBLY. Refer to «REMOVAL»
  12. REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH. Refer to «REMOVAL»
  13. REPLACE OUTER MIRROR CONTROL ECU. Refer to «REMOVAL»
  14. REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH. Refer to «REMOVAL»

The outer rear view mirror assembly has a mirror position sensor. The position control ECU and switch sends instructions to the outer mirror control ECU. Then the outer mirror control ECU receives mirror information from the mirror position sensors, and memorizes the mirror positions.

When the seat memory switch 1, seat memory switch 2 or seat memory switch 3 is pressed, the position control ECU and switch mirror position signal is sent through the CAN communication line to the outer mirror control ECU. The outer mirror control ECU then activates the mirror control motors to move the mirrors to the previously recorded positions.

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Scheme 54: WIRING DIAGRAM
Scheme 54: WIRING DIAGRAM

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Scheme 55: PROCEDURE
Scheme 55: PROCEDURE

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Scheme 58
  1. CHECK DTC Use the Techstream to check if the CAN communication system is functioning normally. Refer to «DIAGNOSIS SYSTEM». RESULT Result Proceed to CAN DTC is not output A CAN DTC is output B B --> See step 9 A: Go to next step
  2. CHECK POWER MIRROR CONTROL FUNCTION Check that the mirror surface positions of the outer rear view mirror LH and RH can be moved using the outer mirror switch. OK Mirror surface positions of the outer rear view mirror LH and RH can be moved using the outer mirror switch. NG --> See step 10 OK: Go to next step
  3. READ VALUE USING TECHSTREAM (MIRROR POSITION MEMORY) Check the Data List for proper functioning of the mirror position memory. Refer to «DATA LIST / ACTIVE TEST». MIRROR Tester Display Measurement Item/Display Normal Condition Diagnostic Note Mirror Memory No. 1 Mirror position memorized in seat memory switch 1 / ON or OFF ON: Memorized OFF: Not memorized - Mirror Memory No. 2 Mirror position memorized in seat memory switch 2 / ON or OFF ON: Memorized OFF: Not memorized - Mirror Memory No. 3 Mirror position memorized in seat memory switch 3 / ON or OFF ON: Memorized OFF: Not memorized - OK On the Techstream screen, each item changes between ON and OFF according to above chart. NG --> See step 12 OK: Go to next step
  4. READ VALUE USING TECHSTREAM (MIRROR POSITION SENSOR) Check the Data List for proper functioning of the mirror position sensor. Refer to «DATA LIST / ACTIVE TEST». MIRROR Tester Display Measurement Item/Display Normal Condition Diagnostic Note RH Mir Position Sensor V Passenger side mirror vertical sensor voltage / MIN: 0 V, MAX: 5 V Within range from 0 to 5 V - RH Mir Position Sensor H Passenger side mirror horizontal sensor voltage / MIN: 0 V, MAX: 5 V Within range from 0 to 5 V - LH Mir Position Sensor V Driver side mirror vertical sensor voltage / MIN: 0 V, MAX: 5 V Within range from 0 to 5 V - LH Mir Position Sensor H Driver side mirror horizontal sensor voltage / MIN: 0 V, MAX: 5 V Within range from 0 to 5 V - OK When mirror control switch is operated, voltage changes within range shown in above chart. RESULT Result Proceed to LH side mirror does not operate normally A RH side mirror does not operate normally B Mirror operates normally C C --> See step 11 B --> See step 7 A: Go to next step
  5. CHECK OUTER MIRROR CONTROL ECU (POWER SOURCE FOR MIRROR POSITION SENSOR) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition I18-2 (LVC) - I18-3 (LE1) Engine switch on (IG) 4.7 to 5.5 V Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I18-3 (LE1) - Body ground Always Below 1 ohms NG --> See step 12 OK: Go to next step
  6. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR LH - OUTER MIRROR CONTROL ECU) Disconnect the I18 ECU connector. Disconnect the I15 mirror connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I18-2 (LVC) - I15-8 (VC) Always Below 1 ohms I18-3 (LE1) - I15-17 (E1) I18-4 (VSR) - I15-18 (VSRL) I18-5 (HSRL) - I15-9 (HSRL) I15-8 (VC) - Body ground Always 10 kohms or higher I15-17 (E1) - Body ground I15-18 (VSRL) - Body ground I15-9 (HSRL) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 13
  7. CHECK OUTER MIRROR CONTROL ECU (POWER SOURCE FOR MIRROR POSITION SENSOR) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition I18-22 (RVC) - I18-23 (RE1) Engine switch on (IG) 4.7 to 5.5 V Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I18-23 (RE1) - Body ground Always Below 1 ohms NG --> See step 12 OK: Go to next step
  8. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR RH - OUTER MIRROR CONTROL ECU) Disconnect the I18 ECU connector. Disconnect the I7 mirror connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I18-22 (RVC) - I7-8 (VC) Always Below 1 ohms I18-23 (RE1) - I7-17 (E1) I18-24 (VSRR) - I7-18 (VSSR) I18-25 (HSRR) - I7-9 (HSSR) I7-8 (VC) - Body ground Always 10 kohms or higher I7-17 (E1) - Body ground I7-18 (VSSR) - Body ground I7-9 (HSSR) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 14
  9. GO TO CAN COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»
  10. PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»
  11. GO TO FRONT POWER SEAT CONTROL SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»
  12. REPLACE OUTER MIRROR CONTROL ECU. Refer to «REMOVAL»
  13. REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH. Refer to «REMOVAL»
  14. REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH. Refer to «REMOVAL»

When the reverse signal is sent from the ECM through the CAN communication line to the outer mirror control ECU, the outer mirror control ECU activates the outer rear view mirror LH and RH reverse shift-linked function.

HINT

The reverse shift-linked function will not occur when the mirror master switch is in the neutral position (off).

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Scheme 60
  1. CHECK DTC Use the Techstream to check if the CAN communication system is functioning normally. Refer to «DIAGNOSIS SYSTEM». RESULT Result Proceed to CAN DTC is not output A CAN DTC is output B B --> See step 8 A: Go to next step
  2. CHECK OPERATION OF SHIFT INDICATOR Check that the shift indicator of the combination meter operates normally. OK Shift indicator of combination meter operates normally. NG --> See step 9 OK: Go to next step
  3. READ VALUE USING TECHSTREAM (MIRROR POSITION SENSOR) Check the Data List for proper functioning of the mirror position sensor. Refer to «DATA LIST / ACTIVE TEST». MIRROR Tester Display Measurement Item/Display Normal Condition Diagnostic Note RH Mir Position Sensor V RH side mirror vertical sensor voltage / MIN: 0 V, MAX: 5 V Within range from 0 to 5 V - LH Mir Position Sensor V LH side mirror vertical sensor voltage / MIN: 0 V, MAX: 5 V Within range from 0 to 5 V - OK When mirror control switch is operated to turn mirror upward or downward, voltage changes within range shown in above chart. RESULT Result Proceed to LH side mirror does not operate normally A RH side mirror does not operate normally B Mirror operates normally C C --> See step 10 B --> See step 6 A: Go to next step
  4. CHECK OUTER MIRROR CONTROL ECU (POWER SOURCE FOR MIRROR POSITION SENSOR) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition I18-2 (LVC) - I18-3 (LE1) Engine switch on (IG) 4.7 to 5.5 V Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I18-3 (LE1) - Body ground Always Below 1 ohms NG --> See step 10 OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR LH - OUTER MIRROR CONTROL ECU) Disconnect the I18 ECU connector. Disconnect the I15 mirror connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I18-2 (LVC) - I15-8 (VC) Always Below 1 ohms I18-3 (LE1) - I15-17 (E1) I18-4 (VSR) - I15-18 (VSRL) I15-8 (VC) - Body ground Always 10 kohms or higher I15-17 (E1) - Body ground I15-18 (VSRL) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 11
  6. CHECK OUTER MIRROR CONTROL ECU (POWER SOURCE FOR MIRROR POSITION SENSOR) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition I18-22 (RVC) - I18-23 (RE1) Engine switch on (IG) 4.7 to 5.5 V Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I18-23 (RE1) - Body ground Always Below 1 ohms NG --> See step 10 OK: Go to next step
  7. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR RH - OUTER MIRROR CONTROL ECU) Disconnect the I18 ECU connector. Disconnect the I7 mirror connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I18-22 (RVC) - I7-8 (VC) Always Below 1 ohms I18-23 (RE1) - I7-17 (E1) I18-24 (VSRR) - I7-18 (VSSR) I7-8 (VC) - Body ground Always 10 kohms or higher I7-17 (E1) - Body ground I7-18 (VSSR) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 12
  8. GO TO CAN COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»
  9. GO TO METER / GAUGE SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»
  10. REPLACE OUTER MIRROR CONTROL ECU. Refer to «REMOVAL»
  11. REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH. Refer to «REMOVAL»
  12. REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH. Refer to «REMOVAL»

See also:
• INSPECTION

More articles — Power Mirror Control (Diagnostics)