Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Lighting Systems Connector End Views or Computer/Integrating Systems Connector End Views in Computer/Integrating Systems | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 | Verify that the off-road lamps are inoperative. Do the off-road lamps operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Is only one off-road lamp inoperative? | Go to Step 4 | Go to Step 6 |
4 | Test the supply voltage circuit of the inoperative lamp for high resistance, short to ground or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 5 |
5 | Test the ground circuit of the inoperative lamp for high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 13 |
6 | Connect a test lamp between the battery positive voltage circuit of the off-road lamps switch, and a good ground. Does the test lamp illuminate? | Go to Step 7 | Go to Step 16 |
7 | Connect a 3-amp fused jumper wire between the battery positive circuit and the off-road lamp relay control circuit of the off-road lamps switch. Do the off-road lamps illuminate? | Go to Step 15 | Go to Step 8 |
8 | Connect a 3-amp fused jumper wire between the battery positive circuit and the off-road lamp supply voltage circuit of the off-road lamps relay. Do the off-road lamps illuminate? | Go to Step 9 | Go to Step 11 |
9 | Test the off-road lamp relay control circuit of the off-road lamps switch for high resistance, short to ground or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 10 |
10 | Test the ground circuit of the off-road lamps relay for high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 11 |
11 | Test the battery positive voltage circuit of the off-road lamps relay for high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 12 |
12 | Test the ground circuit of the off-road lamps for high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 17 |
13 | Inspect for poor connections at the harness connector of the off-road 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 21 | Go to Step 18 |
14 | Inspect for poor connections at the harness connector of the off-road lamps relay. 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 21 | Go to Step 19 |
15 | Inspect for poor connections at the harness connector of the off-road lamps 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 21 | Go to Step 20 |
16 | Repair the battery positive voltage circuit of the off-road lamps switch. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 21 | -- |
17 | Repair the supply voltage circuit of the off-road lamps. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 21 | -- |
18 | Replace the inoperative off-road lamp. Refer to Off Road Lamp Replacement . Did you complete the replacement? | Go to Step 21 | -- |
19 | Replace the inoperative off-road lamps relay. Refer to Relay Replacement in Wiring Systems. Did you complete the replacement? | Go to Step 21 | -- |
20 | Replace the off-road lamps switch. Refer to Off Road Lamp Switch Replacement . Did you complete the replacement? | Go to Step 14 | -- |
21 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
