Step | Action | Yes | No | ||||||
|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Exterior Lights Schematics | |||||||||
1 | Did you perform the Lighting System Diagnostic System Check? | Go to Step 2 | |||||||
2 | Press the brake pedal. Do all of the stop lamps illuminate? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | ||||||
3 | Are all the stop lamp inoperative? | Go to Step 4 | Go to Step 7 | ||||||
4 | Inspect the STOPLAMP fuse. Is the fuse open? | Go to Step 10 | Go to Step 5 | ||||||
5 |
Does the test lamp illuminate? | Go to Step 6 | Go to Step 9 | ||||||
6 | Install a fused jumper between the battery positive voltage circuit and the stoplamp switch signal circuit of the stop lamp switch connector. Do the stop lamps illuminate? | Go to Step 15 | Go to Step 12 | ||||||
7 |
Does the test lamp illuminate? | Go to Step 8 | Go to Step 13 | ||||||
8 | Probe the ground circuit of the inoperative stop lamp with a test lamp that is connected to battery voltage. Does the test lamp illuminate? | Go to Step 14 | Go to Step 11 | ||||||
9 | Repair a open or high resistance in the battery positive voltage circuit of the stop lamp switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 16 | -- | ||||||
10 | Repair a short to ground in one of the following circuits:
Did you complete the repair? | Go to Step 16 | -- | ||||||
11 | Repair a open or high resistance in the ground circuit of the inoperative stop lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 16 | -- | ||||||
12 | Repair an open or high resistance in the stop lamp switch signal circuit of the stop lamp switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 16 | -- | ||||||
13 | Repair an open or high resistance in the stop lamp switch signal circuit of the inoperative stop lamp switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 16 | -- | ||||||
14 | Replace the inoperative stop lamp. Refer to Tail Lamp Assembly and /or Backup, Sidemarker, Stop, Turn Signal Bulb Replacement or High Mount Stop Lamp Bulb Replacement . Did you complete the repair? | Go to Step 16 | -- | ||||||
15 | Adjust or replace the stop lamp switch. Refer to Stop Lamp Switch Replacement in Hydraulic Brakes. Did you complete the repair? | Go to Step 16 | -- | ||||||
16 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 | ||||||
