Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Exterior Lights Schematics | |||
1 | Did you review the Exterior Lighting System Description and Operation and perform the necessary inspections? | Go to Step 2 | |
2 |
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 lamps inoperative? | Go to Step 4 | Go to Step 6 |
4 |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 8 |
5 | Connect a fused jumper between the stop lamp supply voltage circuit and the battery positive voltage of the stop lamp/TCC switch connector. Refer to Circuit Testing in Wiring Systems. Do the stop lamps illuminate? | Go to Step 10 | Go to Step 11 |
6 |
Does the test lamp illuminate? | Go to Step 7 | Go to Step 12 |
7 | Probe between the ground circuit and the supply voltage circuit of the inoperative stop lamp with a test lamp. Does the test lamp illuminate? | Go to Step 9 | Go to Step 13 |
8 | Test for an open or high resistance in the battery positive voltage circuit of the stop lamp/TCC switch . Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 14 |
9 | Inspect for poor connections at the harness connector of the inoperative stop lamp. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 15 |
10 | Inspect for poor connections at the harness connector of the stop lamp/TCC switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 16 |
11 | Repair an open or high resistance in the stop lamp supply voltage circuit of the stop lamp/TCC switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 17 | -- |
12 | Repair an open or high resistance in the supply voltage circuit of the inoperative stop lamp. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 17 | -- |
13 | Repair an open or high resistance in the ground circuit of the inoperative stop lamp. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 17 | -- |
14 | Repair a short to ground in the battery positive voltage circuit of the stop lamp/TCC switch . Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 17 | -- |
15 | Replace the inoperative stop lamp. Refer to High Mount Stop Lamp Replacement or to Tail Lamp Bulb Replacement . Did you complete the replacement? | Go to Step 17 | -- |
16 | Adjust/replace the stop lamp/TCC switch. Refer to Stop Lamp Switch Replacement and to Stop Lamp Switch Adjustment in Hydraulic Brakes. Did you complete the replacement? | Go to Step 17 | -- |
17 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Exterior Lights Schematics | |||
1 | Did you review the Exterior Lighting System Description and Operation and perform the necessary inspections? | Go to Step 2 | |
2 |
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 lamps inoperative? | Go to Step 6 | Go to Step 4 |
4 | Is only one stop lamp inoperative or only the center high mounted stop lamp inoperative? | Go to Step 8 | Go to Step 5 |
5 | Are all the stop lamps inoperative except the high mounted stop lamp? | Go to Step 9 | Go to Step 12 |
6 |
Does the test lamp illuminate? | Go to Step 7 | Go to Step 11 |
7 | Connect a fused jumper between the stoplamp supply voltage circuit and the battery positive voltage of the stop lamp/TCC switch connector. Refer to Circuit Testing in Wiring Systems. Do the stop lamps illuminate? | Go to Step 14 | Go to Step 16 |
8 |
Does the test lamp illuminate? | Go to Step 10 | Go to Step 17 |
9 |
Does the test lamp illuminate? | Go to Step 15 | Go to Step 20 |
10 | Probe between the ground circuit and the supply voltage circuit of the inoperative stop lamp with a test lamp. Does the test lamp illuminate? | Go to Step 13 | Go to Step 18 |
11 | Test for an open or high resistance in the battery positive voltage circuit of the stop lamp/TCC switch . Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 24 | Go to Step 19 |
12 | If the inboard and outboard stop lamp are inoperative on one side, test for an open or high resistance in the rear stop/turn lamp supply voltage circuit of the affected stop lamps. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 24 | Go to Step 15 |
13 | Inspect for poor connections at the harness connector of the inoperative stop lamp. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 24 | Go to Step 21 |
14 | Inspect for poor connections at the harness connector of the stop lamp/TCC switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 24 | Go to Step 22 |
15 | Inspect for poor connections at the harness connector of the turn signal/multifunction switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 24 | Go to Step 23 |
16 | Repair an open or high resistance in the stop lamp supply voltage circuit of the stop lamp/TCC switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 24 | -- |
17 | Repair an open or high resistance in the supply voltage circuit of the inoperative stop lamp. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 24 | -- |
18 | Repair an open or high resistance in the ground circuit of the inoperative stop lamp. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 24 | -- |
19 | Repair a short to ground in the battery positive voltage circuit of the stop lamp/TCC switch . Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 24 | -- |
20 | Repair a open or high resistance in the stop lamp supply voltage circuit of the turn signal/multifunction switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 24 | -- |
21 | Replace the inoperative stop lamp. Refer to High Mount Stop Lamp Replacement or to Tail Lamp Bulb Replacement . Did you complete the replacement? | Go to Step 24 | -- |
22 | Adjust/replace the stop lamp/TCC switch. Refer to Stop Lamp Switch Replacement and to Stop Lamp Switch Adjustment in Hydraulic Brakes. Did you complete the replacement? | Go to Step 24 | -- |
23 | Replace the turn signal/multifunction switch. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle in Steering Wheel and Column Tilt. Did you complete the replacement? | Go to Step 24 | -- |
24 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |