Stop Lamps Always On
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
Stop Lamps Always On
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Exterior Lights Schematics Connector End View Reference: Master Electrical Component List in Wiring Systems |
|||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Ensure that the brake pedal is not depressed. Do the stop lamps remain OFF? |
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Disconnect the body control module (BCM) connector C2. Does one stop lamp stay illuminated? |
Go to Step 5 | Go to Step 4 |
| 4 | Test for a short to voltage in the stop lamp supply voltage circuit of the electronic brake control module (EBCM). Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. 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 voltage supply circuit of the illuminated stop lamp. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 7 | - |
| 6 | 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 7 | - |
| 7 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |