Backup Lamps Always On Domestic
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Master Electrical Component List in Wiring Systems. | |||
1 | Did you perform the Lighting System Diagnostic System Check? | Go to Step 2 | |
2 |
Do the backup lamps turn on in REVERSE and turn off in PARK? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Disconnect the Park Neutral Position (PNP) switch. Do the backup lamps turn OFF? | Go to Step 5 | Go to Step 4 |
4 | Repair the short to battery positive voltage in the backup lamps supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 6 | -- |
5 | Adjust or replace the PNP switch. Refer to Park/Neutral Position Switch Adjustment or Park/Neutral Position Switch Replacement in Automatic Transaxle-4T65-E. Did you complete the repair? | Go to Step 6 | -- |
6 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Backup Lamps Always On Export
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Master Electrical Component List in Wiring Systems. | |||
1 | Did you perform the Lighting System Diagnostic System Check? | Go to Step 2 | |
2 |
Do the backup lamps turn on in REVERSE and turn off in PARK? | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
3 | Disconnect the Park Neutral Position (PNP) switch. Are the backup lamps illuminated? | Go to Step 4 | Go to Step 9 |
4 | Remove the backup lamp relay. Are the backup lamps illuminated? | Go to Step 7 | Go to Step 5 |
5 | Using a test lamp connected to ground, probe the backup lamp relay coil voltage supply circuit. Does the test lamp illuminate? | Go to Step 6 | Go to Step 8 |
6 | Repair a short to battery positive voltage in the backup lamp relay coil voltage supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 10 | -- |
7 | Repair a short to battery positive voltage in the backup lamps switched voltage supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 10 | -- |
8 | Replace the backup lamp relay. Refer to Relay Replacement in Wiring Systems. Did you complete the repair? | Go to Step 10 | -- |
9 | Adjust or replace the PNP switch. Refer to Park/Neutral Position Switch Adjustment or Park/Neutral Position Switch Replacement in Automatic Transaxle-4T65-E. Did you complete the repair? | Go to Step 10 | -- |
10 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
