Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics | |||
1 | Did you perform the Lighting System Diagnostic System Check? | Go to Step 2 | |
2 |
Are any of the turn signal illuminated? | Go to Step 4 | Go to Step 3 |
3 | Place the turn signal switch in the RH On position and LH On position. Do the turn signals operate properly? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 9 |
4 | Are the turn signal lamps flashing? | Go to Step 10 | Go to Step 5 |
5 | Are only the front turn signals illuminated? | Go to Step 6 | Go to Step 7 |
6 | Test for a short to voltage in the affected front turn signal supply voltage input circuit 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 12 | Go to Step 8 |
7 | Test for a short to voltage in the turn signal supply voltage circuit of the affected rear turn signal. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 10 |
8 | Test for a short to voltage in the affected turn signal switch signal circuit 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 12 | Go to Step 11 |
9 | If the turn signals illuminate but do not flash when the turn signal switch is ON, replace the hazard lamp/turn signal lamp flasher. Refer to Hazard and Turn Signal Flasher Replacement . Did you complete the replacement? | Go to Step 12 | -- |
10 | Replace the turn signal switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column - Tilt. Did you complete the replacement? | Go to Step 12 | -- |
11 |
Important : Perform the set up procedure for the Body Control Module (BCM). Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System. Replace the Body Control Module (BCM). Refer to Body Control Module Replacement in Body Control System. Did you complete the repair? | 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 |
