Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics | |||
1 | Did you review the Lighting System Description and Operation and perform the necessary inspections? | Go to Step 2 | |
2 | Verify that the daytime running lamps are inoperative. Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the brake indicator stop illuminating and the headlamps light to the DRL mode? | Go to Step 4 | Go to Step 5 |
4 | Replace the parking brake switch. Refer to Parking Brake Indicator Switch Replacement in Park Brake. Did you complete the replacement? | Go to Step 22 | -- |
5 | Test the battery positive voltage circuit between the DRL control module connector cavity 14 and the parking brake switch connector for a short to ground condition . Is a short to ground condition present? | Go to Step 6 | Go to Step 7 |
6 | Repair the short to ground condition in the battery positive voltage circuit between the DRL control module connector cavity 14 and the parking brake switch connector. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 22 | -- |
7 |
Is proper B+ voltage supplied? | Go to Step 8 | Go to Step 14 |
8 |
Is proper B+ voltage supplied? | Go to Step 9 | Go to Step 15 |
9 |
Is proper B+ voltage supplied? | Go to Step 10 | Go to Step 16 |
10 | Test for open between cavity 12 of the DRL module connector and ground. Is open condition present? | Go to Step 17 | Go to Step 11 |
11 | Test for high resistance between cavity 1 of the DRL module connector and ground. Is high resistance in the circuit present? | Go to Step 12 | Go to Step 18 |
12 |
Is open condition present? | Go to Step 13 | Go to Step 19 |
13 | Test for an open between cavity 25 of the DRL control module and cavity 2 of connector C3 of junction block 1. Is an open condition present? | Go to Step 21 | Go to Step 20 |
14 | Repair the open in the battery positive voltage circuit between cavity 22 of the DRL control module connector and cavity 10 of connector C3 of junction block 1. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 22 | -- |
15 | Repair the open in the battery positive voltage circuit between cavity 23 of the DRL control module connector and cavity 6 of connector C1 of junction block 3. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 22 | -- |
16 | Repair the open in the charge indicator ground circuit between the DRL control module connector cavity 13 and SP258. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 22 | -- |
17 | Repair the open in the ground circuit between cavity 12 of the DRL control module connector and ground. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 22 | -- |
18 | Repair the open in the ground circuit between cavity 1 of the DRL control module connector and SP261. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 22 | -- |
19 | Repair the open in the DRL ground circuit between cavity 11 of the DRL control module connector and cavity 2 of connector C3 of junction block 1. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 22 | -- |
20 | Repair the open in the DRL ground circuit between cavity 25 of the DRL control module connector and SP261. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 22 | -- |
21 | Replace the DRL control module. Refer to Daytime Running Lights (DRL) Control Module Replacement . Did you complete the replacement? | Go to Step 22 | -- |
22 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
