POWER MIRRORS (Power Window Master Switch)
NOTE:
- Before testing, check for DTCs. If any DTCs are indicated, troubleshoot those DTCs first.
- If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to:
- Before testing, make sure the No. C23 (7.5 A) fuse in the under-dash fuse/relay box is OK.
1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the power window master switch 37P connector.
3. Inspect the connector and socket terminals to be sure they are all making good contact:
- If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, go to step 4.
4. Reconnect the connector to the control unit, do the following input tests:
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, go to step 5.
| Cavity | Wire | Test condition | Test: Desired result | Possible cause if desired result is not obtained |
|---|---|---|---|---|
| 25 | LT GRN | Vehicle ON mode | Measure the voltage to ground: There should be battery voltage. |
|
| 5*1 | LT BLU | Vehicle ON mode | Connect terminals No. 5 and No. 25, and power mirror switch 13P connector terminals No. 9 and No. 13 with jumper wires: The left power mirror should UP. |
|
| 3 | BLK | In all power modes | Measure the voltage to ground: There should be less than 0.2 V. |
|
| 31 | BLK | In all power modes | Measure the voltage to ground: There should be less than 0.2 V. |
|
| 11*2 | BRN | Vehicle ON mode, power mirror switch in EXTEND position | Measure the voltage to ground: There should be less than 0.2 V. |
|
| Vehicle ON mode, power mirror switch in RETRACT position | Measure the voltage to ground: There should be about 12 V. |
|
*1: Without DPMS, auto idle stop system
*2: With retractable mirror
5. Turn the vehicle to the OFF (LOCK) mode.
6. Disconnect the connector from the power window master switch, and do the following input tests:
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, replace the power window master switch. Power Window Master Switch - Removal and Installation .
NOTE: After replacing the power window master switch, do the resetting the power window control unit. Refer to:
Resetting The Power Window Control Unit .
| Cavity | Wire | Test condition | Test: Desired result | Possible cause if desired result is not obtained |
|---|---|---|---|---|
| 8*1 9*1 |
WHT GRN |
Vehicle ON mode, connect terminals No. 25 to No. 8 (or No. 9) and terminal No. 9 (or No. 8) to body ground with a jumper wires NOTE: if the mirror stops moving, disconnect battery power immediately. |
Check the retract actuator operation: The left mirror should retract (or extend). |
|
| 6*2 | BLU | Power mirror switch in RIGHT mirror position | Check for continuity to ground: There should be continuity. |
|
| 7*2 | TAN | Power mirror switch in RIGHT mirror position | Check for continuity to ground: There should be continuity. |
|
| 15*3 | TAN | Vehicle ON mode, connect terminals No. 25 and No. 15 with a jumper wire | Check the left power mirror defogger operation: The left power mirror defogger should work (the inside lower edge becomes warm). |
|
| 36 | GRY | Disconnect these connectors:
|
Check for continuity between terminal No. 36 and front passenger's power window switch 24P connector terminal No. 24: There should be continuity. |
An open in the LIN (WINDOW) wire |
| Check for continuity between terminal No. 36 and moonroof motor-control unit 14P connector terminal No. 12: There should be continuity. |
An open in the LIN (WINDOW) wire | |||
| Check for continuity to ground: There should be no continuity. |
A short to ground in the LIN (WINDOW) wire |
*1: With retractable mirror
*2: Without DPMS, auto idle stop system
*3: With mirror defogger