Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Master Electrical Component List | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 |
Do both backup lamps illuminate? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 | Is only one lamp inoperative? | Go to Step 9 | Go to Step 4 |
4 |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 7 |
5 | Connect a 10-amp fused jumper between the switch side battery positive voltage circuit of the backup lamp relay and the back up lamp voltage supply circuit of the backup lamp relay. Do the back up lamps illuminate? | Go to Step 8 | Go to Step 6 |
6 | Test for an open or high resistance in the backup lamp voltage supply circuit. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 12 | Go to Step 7 |
7 | Inspect for poor connections at the fuse block - rear. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 12 | Go to Step 10 |
8 | Inspect for poor connections at the backup lamp relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 12 | Go to Step 11 |
9 | Repair an open, high resistance, or short to ground in the backup lamp voltage supply circuit or the ground circuit of the inoperative lamp. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 12 | -- |
10 | Replace the fuse block - rear. Did you complete the replacement? | Go to Step 12 | -- |
11 | Replace the backup lamp relay. Refer to Relay Replacement . Did you complete the replacement? | Go to Step 12 | -- |
12 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
