Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics Connector End View Reference: Lighting Systems Connector End Viewsor 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 |
Does the system operate normally? | Go to Testing for Electrical Intermittentsin Wiring Systems | Go to Step 3 |
3 | Is only one daytime running lamp (DRL) inoperative? | Go to Step 4 | Go to Step 5 |
4 | Test the supply and ground circuits of the affected lamp for a 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 16 | Go to Step 15 |
5 |
Does the scan tool display RELEASED? | Go to Step 7 | Go to Step 6 |
6 | Test the signal circuit of the park brake switch for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 10 |
7 |
Do the DRL illuminate? | Go to Step 8 | Go to Step 11 |
8 | Test the DRL relay control circuit of the DRL relay for a ground signal. Refer to Circuit Testing in Wiring Systems Is a ground signal present? | Go to Step 14 | Go to Step 9 |
9 | Inspect for poor connections at the harness connector of the BCM. 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 16 | Go to Step 12 |
10 | Inspect for poor connections at the harness connector of the park brake 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 16 | Go to Step 13 |
11 | Repair the DRL supply voltage circuit. Refer to Wiring Repairs in Wiring Systems Did you complete the repair? | Go to Step 16 | -- |
12 | Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 16 | -- |
13 | Replace the park brake switch. Refer to Parking Brake Indicator Switch Replacement in Park Brake. Did you complete the replacement? | Go to Step 16 | -- |
14 | Replace the DRL relay. Refer to Relay Replacement in Wiring Systems. Did you complete the replacement? | Go to Step 16 | -- |
15 | Replace the inoperative DRL. Did you complete the replacement? | Go to Step 16 | -- |
16 | 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: Headlights/Daytime Running Lights (DRL) Schematics Connector End View Reference: Lighting Systems Connector End Viewsor 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 |
Does the system operate normally? | Go to Testing for Electrical Intermittentsin Wiring Systems | Go to Step 3 |
3 | Is only one daytime running lamp (DRL) inoperative? | Go to Step 4 | Go to Step 5 |
4 | Test the supply and ground circuits of the affected lamp for a 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 17 | Go to Step 16 |
5 | Do the park lamps operate normally? | Go to Step 6 | |
6 |
Does the scan tool display RELEASED? | Go to Step 8 | Go to Step 7 |
7 | Test the signal circuit of the park brake switch for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 11 |
8 |
Do the DRL illuminate? | Go to Step 9 | Go to Step 12 |
9 | Test the DRL relay control circuit of the DRL relay for a ground signal. Refer to Circuit Testing in Wiring Systems. Is a ground signal present? | Go to Step 15 | Go to Step 10 |
10 | Inspect for poor connections at the harness connector of the BCM. 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 13 |
11 | Inspect for poor connections at the harness connector of the park brake 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 14 |
12 | Repair the DRL supply voltage circuit. Did you complete the repair? | Go to Step 17 | -- |
13 | Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 17 | -- |
14 | Replace the park brake switch. Refer to Parking Brake Indicator Switch Replacement in Park Brake. Did you complete the replacement? | Go to Step 17 | -- |
15 | Replace the DRL relay. Refer to Relay Replacement in Wiring Systems. Did you complete the replacement? | Go to Step 17 | -- |
16 | Replace the inoperative DRL. 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 3 |