Stop Lamps Inoperative Domestic
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 in Wiring Systems | Go to Step 3 | ||||||||||||
3 | Inspect the STOP LP fuse in the underhood fuse block. Is the fuse open? | Go to Step 11 | Go to Step 4 | ||||||||||||
4 | Is only one lamp inoperative? | Go to Step 5 | Go to Step 6 | ||||||||||||
5 | Inspect the inoperative lamp for an open filament, poor terminal contact or inoperative LED. Was a problem found? | Go to Step 13 | Go to Step 12 | ||||||||||||
6 | Remove the stop lamp switch and install a fused jumper between the battery positive supply voltage circuit and stop lamp switch signal circuit terminals of the connector. Do the stop lamps illuminate? | Go to Step 14 | Go to Step 7 | ||||||||||||
7 | Test for an open or high resistance in one of the following circuits. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition? | Go to Step 17 | Go to Step 8 | ||||||||||||
8 | Is this vehicle a pickup? | Go to Step 9 | Go to Step 10 | ||||||||||||
9 |
Do the stop lamps illuminate? | Go to Step 15 | Go to Step 10 | ||||||||||||
10 | Test for an open or high resistance in one of the following circuits. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition? | Go to Step 17 | Go to Step 17 | ||||||||||||
11 | Repair the short to ground in one of the following circuits. Refer to Circuit Testing and Wiring Repairs in Wiring Systems:
Did you complete the repair? | Go to Step 17 | -- | ||||||||||||
12 | Repair one of the following conditions. Refer to Wiring Repairs in Wiring Systems.
Did you complete the repair? | Go to Step 17 | -- | ||||||||||||
13 | Replace the defective bulb/socket or high mount stop lamp assembly. Refer to High Mount Stop Lamp Replacement . Did you complete the repair? | Go to Step 17 | -- | ||||||||||||
14 | Replace the stop lamp switch. Refer to Stop Lamp Switch Replacement . Did you complete the repair? | Go to Step 17 | -- | ||||||||||||
15 | Replace the high mount stop lamp relay. Did you complete the repair? | Go to Step 17 | -- | ||||||||||||
16 | Replace the multifunction switch turn signal switch. Refer to Turn Signal Multifunction Switch Replacement Steering Wheel and Column. Did you complete the repair? | Go to Step 17 | -- | ||||||||||||
17 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 | ||||||||||||
Stop Lamps Inoperative Export
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 in Wiring Systems | Go to Step 3 | ||||||
3 | Is only one lamp inoperative? | Go to Step 4 | Go to Step 5 | ||||||
4 | Inspect the lamp for poor connector terminal contact or inoperative LED. Was a problem found? | Go to Step 10 | Go to Step 9 | ||||||
5 | Connect a test lamp from ground to the CHMSL supply voltage circuit terminal of the inoperative lamp socket or connector and apply the service brake. Refer to Circuit Testing in Wiring Systems. Does the test lamp illuminate? | Go to Step 7 | Go to Step 6 | ||||||
6 | Remove the stop lamp switch and install a fused jumper between the connector terminal A and terminal B. Do the stop lamps illuminate? | Go to Step 11 | Go to Step 8 | ||||||
7 | Repair the open or high resistance in the ground circuit. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 12 | -- | ||||||
8 | Repair the open, high resistance or short to ground in one of the following circuits. Refer to Wiring Repairs in Wiring Systems:
Is the repair complete? | Go to Step 12 | -- | ||||||
9 | Repair the open or high resistance in one of the following circuits. Refer to Wiring Repairs in Wiring Systems:
Is the repair complete? | Go to Step 12 | -- | ||||||
10 | Repair the connector or replace the high mount stop lamp assembly. Refer to High Mount Stop Lamp Replacement . Is the repair complete? | Go to Step 12 | -- | ||||||
11 | Replace the stop lamp switch. Refer to Stop Lamp Switch Replacement . Did you complete the repair? | 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 | ||||||
