Step | Action | Yes | No | ||||
|---|---|---|---|---|---|---|---|
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 | Verify if only one of the stop lamps is inoperative or all stop lamps are inoperative. Is only one stop lamp inoperative? | Go to Step 12 | Go to Step 4 | ||||
4 | Inspect the STOP LAMP fuse. Is the fuse open? | Go to Step 5 | Go to Step 6 | ||||
5 | Repair a short to ground in one of the following circuits:
Is the repair complete? | Go to Step 15 | -- | ||||
6 | Use a test lamp in order to backprobe the stop lamp switch harness connector C1 between terminal A and ground. Did the test lamp light? | Go to Step 7 | Go to Step 10 | ||||
7 |
Did the test lamp light? | Go to Step 8 | Go to Step 9 | ||||
8 |
Does the test lamp light? | Go to Step 14 | Go to Step 11 | ||||
9 | Adjust or replace the stop lamp switch. Refer to Stop Lamp Switch Replacement in Hydraulic Brakes. Is the repair complete? | Go to Step 15 | -- | ||||
10 | Repair the following conditions in CKT 140:
Is the repair complete? | Go to Step 15 | -- | ||||
11 | Repair the following conditions in CKT 17 between the stoplamp switch and S415:
Is the repair complete? | Go to Step 15 | -- | ||||
12 | Test for an open or a high resistance in the inoperative stop lamp power supply or ground supply circuit. Did you find and correct the condition? | Go to Step 15 | Go to Step 13 | ||||
13 | Replace the inoperative stop lamp. Refr to Tail Lamp Replacement . Did you complete the repair? | Go to Step 15 | -- | ||||
14 | Repair an open or poor connection at G401 Did you complete the repair? | Go to Step 15 | -- | ||||
15 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
