Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics | |||
1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | |
2 | Verify that the stoplamps are always on. Do the stoplamps operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Disconnect the stoplamp switch. Do the stoplamps remain illuminated? | Go to Step 4 | Go to Step 7 |
4 | Disconnect the multifunction turn signal switch and the high mount stoplamp (CHMSL) relay and test for a short to voltage in the following circuits. Refer to Electrical Center Identification Views and Circuit Testing in Wiring Systems.
Was a problem found? | Go to Step 5 | Go to Step 6 |
5 | Repair the short to voltage in one of the following circuits. Refer to Wiring Repairs in Wiring Systems.
Did you complete the repair? | Go to Step 8 | -- |
6 | Test the CHMSL relay for shorted internal contacts and replace as necessary. If a relay fault is not found, replace the multifunction turn signal switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column - Standard or Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle Steering Wheel and Column - Tilt. Did you complete the repair? | Go to Step 8 | -- |
7 | Replace the stoplamp switch. Refer to Stop Lamp Switch Replacement in Hydraulic Brakes. Did you complete the repair? | Go to Step 8 | -- |
8 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
