Step  | Action  | Yes  | No  | 
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Master Electrical Component List DEFINITION: The CHMSL lamps are on at all times.  | |||
1  | Did you perform the Diagnostic System Check - Vehicle?  | Go to Step 2  | |
2  | Ensure that the brake pedal is not depressed. Are the stop lamps OFF?  | Go to Testing for Intermittent Conditions and Poor Connections  | Go to Step 3  | 
3  | Disconnect the body control module (BCM) connector C2. Does CHMSL stay illuminated?  | Go to Step 5  | Go to Step 4  | 
4  | Test for a poor connection or an open in the brake pedal position switch low reference circuit. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?  | Go to Step 7  | Go to Step 6  | 
5  | Repair a short to battery positive voltage in the stop lamp voltage supply circuit. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair?  | Go to Step 7  | --  | 
6  | Replace the BCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement?  | Go to Step 7  | --  | 
7  | Operate the system in order to verify the repair. Did you correct the condition?  | System OK  | Go to Step 3  |