Step | Action | Yes | No | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Exterior Lights Schematics | |||||||||||
1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | |||||||||
2 | Verify that the stoplamps are inoperative. Do the stoplamps 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 inoperative lamp for an open filament, poor terminal contact or inoperative LED. Was a problem found? | Go to Step 11 | Go to Step 8 | ||||||||
5 | Inspect the STOP/HAZ fuse in the IP fuse block. Is the fuse open? | Go to Step 9 | Go to Step 6 | ||||||||
6 |
Does the test lamp illuminate? | Go to Step 12 | Go to Step 7 | ||||||||
7 | Test for an open or high resistance in the stoplamp switch signal circuit or battery positive voltage circuit. Refer to Circuit Testing in Wiring Systems. Was a problem found? | Go to Step 10 | Go to Step 13 | ||||||||
8 | Repair the open or high resistance in one of the following circuits. Refer to Wiring Repairs in Wiring Systems.
Did you complete the repair? | Go to Step 14 | -- | ||||||||
9 | 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 14 | -- | ||||||||
10 | Repair the open or high resistance in the stoplamp switch signal circuit or battery positive voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 14 | -- | ||||||||
11 | Replace the inoperative bulb/socket or high mount stop lamp assembly. Refer to High Mount Stop Lamp Replacement . Did you complete the repair? | Go to Step 14 | -- | ||||||||
12 | Adjust or replace the stoplamp switch. Refer to Stop Lamp Switch Replacement in Hydraulic Brakes. Did you complete the repair? | Go to Step 14 | -- | ||||||||
13 | Replace the multifunction turn signal switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column - Standard or Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle Steering Wheel and Column - Tilt. Did you complete the repair? | Go to Step 14 | -- | ||||||||
14 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
Step | Action | Yes | No | ||||
---|---|---|---|---|---|---|---|
Schematic Reference: Exterior Lights Schematics | |||||||
1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | |||||
2 | Verify that the stoplamps are inoperative. Do the stoplamps 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 open bulb filament, 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 stoplamp switch signal 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 stoplamp switch and install a fused jumper between the connector terminal A and terminal B. Do the stoplamps 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 inoperative bulb/high mount stop lamp assembly. Refer to High Mount Stop Lamp Replacement . Is the repair complete? | Go to Step 12 | -- | ||||
11 | Adjust or replace the stoplamp switch. Refer to Stop Lamp Switch Replacement in Hydraulic Brakes. 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 |