Step | Action | Yes | No | ||||||
|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Lighting Systems Connector End Views , Computer/Integrating Systems Connector End Views in Computer/Integrating Systems, or Manual Transmission Connector End Views in Manual Transmission - Tremec 6-Speed | |||||||||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information | ||||||
2 | Verify that the backup lamps are inoperative. Do the backup lamps operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | ||||||
3 | Is only one backup lamp inoperative? | Go to Step 6 | Go to Step 4 | ||||||
4 | Does this vehicle have a manual transmission? | Go to Step 7 | Go to Step 5 | ||||||
5 | Use the scan tool to check if there are any codes set in the current or history Powertrain DTC Information. Are any codes present? | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information | Go to Step 8 | ||||||
6 | Test the backup lamp supply voltage and ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct a condition? | Go to Step 14 | Go to Step 11 | ||||||
7 |
Do the backup lamps illuminate? | Go to Step 10 | Go to Step 8 | ||||||
8 | Test the following circuits for a short to ground, open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition? | Go to Step 14 | Go to Step 9 | ||||||
9 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 12 | ||||||
10 | Inspect for poor connections at the harness connector of the backup lamp switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 13 | ||||||
11 | Replace the affected backup lamp bulb. Did you complete the replacement? | Go to Step 14 | -- | ||||||
12 | Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 14 | -- | ||||||
13 | Adjust or replace the backup lamp switch. Refer to Backup Lamp Switch Replacement in Manual Transmission - Tremec 6-Speed Did you complete the repair? | Go to Step 14 | -- | ||||||
14 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 | ||||||
