For 1990-2009 cars

## Backup Lamps Always On Domestic

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Exterior Lights Schematics
1 | Did you review the Exterior Lighting System Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Lighting Systems
2 |

1. Shift the transaxle into the PARK position.
2. Turn the ignition switch to the RUN position.

Are the backup lamps illuminated?

Go to Step 3

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

3 | Disconnect the transmission range switch connector C1. Are the backup lamps illuminated? | Go to Step 4 | Go to Step 5
4 | Repair a short to battery voltage on 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 transmission range switch. Refer to Park/Neutral Position Switch Adjustment in Automatic Transaxle. 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
1 | Did you review the Exterior Lighting System Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Lighting Systems
2 |

1. Shift the transaxle into the PARK position.
2. Turn the ignition switch to the RUN position.

Are the backup lamps illuminated?

Go to Step 3

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

3 | Disconnect the transmission range switch connector C1. 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 | Probe the control circuit of the backup lamp relay connector with a test lamp that is connected to a known good ground. Does the test lamp illuminate? | Go to Step 6 | Go to Step 8
6 | Repair a short to battery voltage on the backup lamp relay control 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 voltage on the backup lamps supply voltage 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. Did you complete the repair? | Go to Step 10 | --
9 |

1. Adjust or replace the transmission range switch. Refer to Park/Neutral Position Switch Adjustment in Automatic Transaxle.
2. Inspect the system.

Is the repair complete?

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