| 1 |
POWER WINDOW MAIN SWITCH CONNECTOR INSPECTION
- Switch the ignition off.
- Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION
.)
- Disconnect the power window main switch connector.
- Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
- Is the connector normal?
|
Yes |
Go to the next step. |
| No |
Repair or replace the connector, then go to Step 7. |
| 2 |
POWER WINDOW MOTOR CONNECTOR INSPECTION
- Disconnect the power window motor connector.
- Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
- Is the connector normal?
|
Yes |
Go to the next step. |
| No |
Repair or replace the connector, then go to Step 7. |
| 3 |
VERIFY IF MALFUNCTION CAUSE IS POWER WINDOW MAIN SWITCH POWER SUPPLY CIRCUIT
- Reconnect all the disconnected connectors.
- Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION
.)
- Measure the voltage at the following terminals (vehicle wiring harness side).
- Power window main switch terminal 1K
- Power window main switch terminal 1L
- Is the voltage B+?
|
Yes |
Go to the next step. |
| No |
Inspect the P.WINDOW1 30A fuse and P.WINDOW2 25A fuse.
- If any fuse is damaged:
- If the fuses are normal:
Refer to the wiring diagram and verify if there is a common connector between the following terminals.
- P.WINDOW1 30A fuse and power window main switch terminal 1K
- P.WINDOW2 25A fuse and power window main switch terminal 1L
If there is a common connector:
- Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.
- Repair or replace the malfunctioning location.
If there is no common connector:
- Repair or replace the wiring harness which has an open circuit.
Go to Step 7. |
| 4 |
VERIFY IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN POWER WINDOW MAIN SWITCH AND BODY GROUND
- Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION
.)
- Disconnect the power window main switch connector.
- Inspect for continuity between power window main switch terminal 2A (vehicle wiring harness side) and body ground.
- Is there continuity?
|
Yes |
Go to the next step. |
| No |
Refer to the wiring diagram and verify if there is a common connector between power window main switch terminal 2A and body ground.
If there is a common connector:
- Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location.
- Repair or replace the malfunctioning location.
If there is no common connector:
- Repair or replace the wiring harness which is shorted to ground.
Go to Step 7. |
| 5 |
POWER WINDOW MOTOR TERMINALS E AND F INSPECTION
- Reconnect all the disconnected connectors.
- Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION
.)
- Measure the voltage at power window motor terminals E and F while operating the power window main switch.
- Terminal E during close operation
- Terminal F during open operation
- Is the voltage B+?
|
Yes |
Replace the power window motor, then go to Step 7.
(See FRONT POWER WINDOW MOTOR REMOVAL/INSTALLATION
.) |
| No |
Go to the next step. |
| 6 |
POWER WINDOW MAIN SWITCH TERMINALS 1J AND 1H INSPECTION
|
Yes |
Refer to the wiring diagram and verify if there is a common connector between the following terminals.
- Power window main switch terminal 1J and power window motor terminal E
- Power window main switch terminal 1H and power window motor terminal F
If there is a common connector:
- Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open or short circuit to determine the malfunctioning location.
- Repair or replace the malfunctioning location.
If there is no common connector:
- Repair or replace the wiring harness which has an open or short circuit.
Go to the next step. |
| No |
Replace the power window main switch, then go to the next step.
(See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION
.) |
| 7 |
VERIFY IF MALFUNCTION CAUSE IS CORRECTED
- Does the power window system operate normally?
|
Yes |
Troubleshooting completed. (Explain the problem to the customer.) |
| No |
Verify the malfunction symptom in the symptom troubleshooting chart and perform the other applicable malfunction diagnosis. |