Power Window Master Switch Input Test (2014)
- 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: Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks .
- Before testing, make sure the No. A21 (10 A) fuse in the under-hood fuse/relay box is OK.
- Before testing, make sure the No. B1 (7.5 A), No. B32 (20 A), No. B33 (20 A), No. B34 (20 A), and No. B35 (20 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. With the connector still disconnected, 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 |
|---|---|---|---|---|
| 2 1 |
YEL GRN |
Connect terminals No. 2 and No. 4, and terminals No. 1 and No. 3 with jumper wires. | Check driver's power window motor operation: The driver's power window should close. |
|
| Connect terminals No. 1 and No. 4, and terminals No. 2 and No. 3 with jumper wires. | Check driver's power window motor operation: The driver's power window should open. |
*: With moonroof
| Cavity | Wire | Test condition | Test: Desired result | Possible cause if desired result is not obtained |
|---|---|---|---|---|
| 36 | LT BLU | Disconnect these connectors:
|
Check for continuity between terminal No. 36 and front passenger's power window switch 37P connector terminal No. 34: There should be continuity. |
An open in the LIN (P/W) wire |
| Check for continuity between terminal No. 36 and moonroof control unit/motor 14P connector terminal No. 12: There should be continuity. |
An open in the LIN (P/W) wire | |||
| Check for continuity to ground: There should be no continuity. |
A short to ground in the LIN (P/W) wire |
*: With moonroof
5. Reconnect the connector, 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 .
| Cavity | Wire | Test condition | Test: Desired result | Possible cause if desired result is not obtained |
|---|---|---|---|---|
| 4 | WHT | Under all conditions | Measure the voltage to ground: There should be battery voltage. |
|
| 26 | WHT | Under all conditions | Measure the voltage to ground: There should be battery voltage. |
|
| 25 | LT GRN | Turn the vehicle to the ON mode | Measure the voltage to ground: There should be battery voltage. |
|
| 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. |
|
| 13 | PUR | Turn the vehicle to the ON mode | Measure the voltage to ground: There should be battery voltage. |
|
| 17 | ORN | Turn the vehicle to the ON mode, and driver's power window moving up or down | Measure the voltage between terminals No. 17 and No. 31: An analog meter should alternate between 0 V and 5 V (a digital voltmeter should read about 2.5 V while the window moves). |
|
| 19 | PNK | Turn the vehicle to the ON mode, and driver's power window moving up or down | Measure the voltage between terminals No. 19 and No. 31: An analog meter should alternate between 0 V and 5 V (a digital voltmeter should read about 2.5 V while the window moves). |
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