Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Lighting Systems Connector End Views or Data Communication Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 | Observe the stop lamps while pressing the brake pedal. Does the system operate normally? | Go to Step 3 | |
3 | Are all the stop lamps inoperative? | Go to Step 6 | Go to Step 4 |
4 | Test the supply voltage circuit of the inoperative lamp for high resistance, an open, or a short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 12 | Go to Step 5 |
5 | Test the ground circuit of the inoperative lamp for high resistance or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 12 | Go to Step 8 |
6 | Test the battery positive circuit of the stop lamp switch for high resistance, an open or a short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 12 | Go to Step 7 |
7 | Test the stop lamp switch signal circuit of the stop lamp switch for a short to ground, high resistance or an open. Refer to Wiring Repairs . Did you find and correct the condition? | Go to Step 12 | Go to Step 9 |
8 | Inspect for poor connections at the harness connector of the bulb or high mount stop lamp. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 12 | Go to Step 10 |
9 | Inspect for poor connections at the harness connector of the switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 12 | Go to Step 11 |
10 | Replace the stop lamp. Refer to Tail/Turn Signal Lamp Replacement and High Mount Stop Lamp Replacement . Did you complete the replacement? | Go to Step 12 | -- |
11 | Replace the stop lamp switch. Refer to Stop Lamp Switch Replacement . Did you complete the replacement? | Go to Step 12 | -- |
12 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
