Step | Action | Yes | No | ||||
|---|---|---|---|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Lighting Systems Connector End Views | |||||||
1 | Did you review the Exterior Lighting Systems Description and Operation and perform the necessary inspections? | Go to Step 2 | |||||
2 | Verify that the stop lamps are inoperative. Do the stop lamps operate normally? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 | ||||
3 | Is only one lamp inoperative? | Go to Step 4 | Go to Step 5 | ||||
4 | Inspect the lamp for an open filament or poor connector terminal contact. Was a condition found? | Go to Step 11 | Go to Step 10 | ||||
5 | Connect a test lamp from ground to the supply voltage circuit terminal of the inoperative lamp socket or connector and apply the service brake. Refer to Circuit Testing . Does the test lamp illuminate? | Go to Step 8 | Go to Step 6 | ||||
6 | Remove the stop lamp switch and install a fused jumper between the stop lamp switch battery positive voltage circuit terminal and the stop lamp switch signal circuit terminal of the stop lamp switch connector. Do the stop lamps illuminate? | Go to Step 12 | Go to Step 7 | ||||
7 | Test for one of the following conditions. Refer to Circuit Testing .
Did you find and correct the condition? | Go to Step 14 | Go to Step 9 | ||||
8 | Repair the open or high resistance in the ground circuit of the inoperative lamp. Refer to Wiring Repairs . Is the repair complete? | Go to Step 14 | -- | ||||
9 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 14 | Go to Step 13 | ||||
10 | Repair one of the following conditions. Refer to Wiring Repairs .
Is the repair complete? | Go to Step 14 | -- | ||||
11 | Repair the connector or replace the bulb. Refer to Wiring Repairs , Tail Lamp Bulb Replacement , or High Mount Stop Lamp Replacement . Is the repair complete? | Go to Step 14 | -- | ||||
12 | Replace the stop lamp switch. Refer to Stop Lamp Switch Replacement . Did you complete the replacement? | Go to Step 14 | -- | ||||
13 | Replace the BCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 14 | -- | ||||
14 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 | ||||
