Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 | Press down the brake pedal. Do all of the stop lamps illuminate? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 | Is only one lamp inoperative? | Go to Step 4 | Go to Step 5 |
4 |
Does the test lamp illuminate? | Go to Step 16 | Go to Step 17 |
5 | Are all of the stop lamps, including the high mounted stop lamps, inoperative? | Go to Step 6 | Go to Step 8 |
6 |
Does the test lamp illuminate? | Go to Step 7 | Go to Step 18 |
7 | Connect a 20-amp fused jumper wire between the battery positive voltage circuit of the brake switch and the stop lamp supply voltage circuit. Do the stop lamps illuminate? | Go to Step 12 | Go to Step 19 |
8 | Are the high mounted stop lamps inoperative? | Go to Step 9 | Go to Step 11 |
9 | Test the stop lamp supply voltage circuit of the high mounted stop lamps for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 23 | Go to Step 10 |
10 | Test the ground circuit of the high mounted stop lamps for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 23 | Go to Step 15 |
11 | Test for an open or high resistance in the stop lamp supply voltage circuit between splice 206 and the turn/hazard-headlamp switch assembly. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 23 | Go to Step 14 |
12 | Inspect for poor connections at the harness connector of the brake switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 23 | Go to Step 13 |
13 | Inspect the brake switch for proper adjustment. Refer to Stop Lamp Switch Adjustment . Did you find and correct the condition? | Go to Step 23 | Go to Step 20 |
14 | Inspect for poor connections at the harness connector of the turn/hazard-headlamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 23 | Go to Step 21 |
15 | Inspect for poor connections at the harness connector of the high mounted stop lamps. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 23 | Go to Step 22 |
16 | Repair an open or high resistance in the ground circuit of the inoperative lamp. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 23 | -- |
17 | Repair an open or high resistance in the stop lamp supply voltage circuit of the inoperative lamp. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 23 | -- |
18 | Repair an open, high resistance, or short to ground in the battery positive voltage circuit of the brake switch. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 23 | -- |
19 | Repair an open or high resistance in the stop lamp supply voltage circuit between the brake switch and splice 206. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 23 | -- |
20 | Replace the brake switch. Refer to Stop Lamp Switch Replacement . Did you complete the replacement? | Go to Step 23 | -- |
21 | Replace the turn/hazard-headlamp switch. Refer to Turn Signal Multifunction Switch Replacement . Did you complete the replacement? | Go to Step 23 | -- |
22 | Replace the high mounted stop lamp assembly. Refer to High Mount Stop Lamp Replacement . Did you complete the replacement? | Go to Step 23 | -- |
23 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
