Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Lighting Systems Connector End Views | |||
1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | |
2 | Verify that the turn signal lamps and/or indicators are always on or flashing. Do the turn signal lamps operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Inspect the affected bulb/socket for an internal short, poor terminal contact, or a shorted filament. Was a problem found? | Go to Step 8 | Go to Step 4 |
4 | Disconnect the multifunction turn signal switch. Do the affected turn signals and indicators still illuminate? | Go to Step 5 | Go to Step 6 |
5 | Test for a high resistance or short to ground in the turn signal switch signal circuit. Did you find and correct the condition? | Go to Step 11 | Go to Step 7 |
6 | Inspect for poor connections at the multifunction turn signal switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 9 |
7 | Inspect for poor connections at 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 11 | Go to Step 10 |
8 | Replace or repair the affected bulb/socket. Refer to Headlamp Assembly or Headlamp Bulb and/or Cornering, Sidemarker, Park, Turn Signal Bulb Replacement or Tail Lamp Assembly and /or Backup, Sidemarker, Stop, Turn Signal Bulb Replacement . Did you complete the repair? | Go to Step 11 | -- |
9 | Replace the turn signal/multifunction switch. Refer to Turn Signal Multifunction Switch Replacement in Steering Wheel and Column. Did you complete the repair? | Go to Step 11 | -- |
10 |
Important: Perform the setup procedure for the BCM. Replace the BCM. Refer to Body Control Module Replacement in Body Control System. Did you complete the repair? | Go to Step 11 | -- |
11 |
Did you correct the condition? | System OK | Go to Step 3 |
