Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Lighting Systems Connector End Views | |||
1 | Did you review the stop lamps operation and perform the necessary inspections? | Go to Step 2 | |
2 |
Are the stop lamps OFF? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Disconnect the stop lamp switch. Are the stop lamps illuminated? | Go to Step 4 | Go to Step 7 |
4 | Is the vehicle being worked on equipped with air brakes? | Go to Step 5 | Go to Step 6 |
5 | Disconnect the trailer stop lamps switch. Are the stop lamps illuminated? | Go to Step 6 | Go to Step 9 |
6 | Test the brake switch input circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 10 |
7 | Inspect the stop lamp switch for proper adjustment, if the vehicle has hydraulic brakes. Refer to Stop Lamp Switch Adjustment . Did you find and correct the condition? | Go to Step 11 | Go to Step 8 |
8 | Replace the stop lamp switch. Refer to Stop Lamp Switch Replacement . Did you complete the replacement? | Go to Step 11 | -- |
9 | Replace the trailer stop lamps switch. Refer to Trailer Stop Lamp Switch Replacement in Air Brakes. Did you complete the replacement? | Go to Step 11 | -- |
10 | Replace the hazard flasher. Did you complete the replacement? | Go to Step 11 | -- |
11 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
