Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Inspect the DRL fuse for an open. Is the DRL fuse open? | -- | Go to Step 2 | Go to Step 3 |
2 | Repair the short to ground in circuit 1239. Is the repair complete? | -- | Go to Exterior Lights System Check or Headlight System Check | -- |
3 | Inspect the HVAC fuse for an open. Is the HVAC fuse open? | -- | Go to Step 4 | Go to Step 5 |
4 | Repair the short to ground in circuit 41. Is the repair complete? | -- | Go to Exterior Lights System Check or Headlight System Check | -- |
5 | Using a DMM, test for continuity in circuit 10 between C201 terminal A4 and the DRL control module C1 terminal D. Is there continuity in circuit 10? | -- | Go to Step 7 | Go to Step 6 |
6 | Repair the poor connection or open in circuit 10. Is the repair complete? | -- | Go to Exterior Lights System Check or Headlight System Check | -- |
7 | Inspect for body control module (BCM) diagnostic trouble codes (DTCs). Refer to Diagnostic System Check - Body Control System in Body Control Systems. Are there any BCM DTCs preset? | -- | Go to Diagnostic System Check - Body Control System in Body Control Systems | Go to Step 8 |
8 |
Do the front turn signal lamps turn on? | -- | Go to Step 21 | Go to Step 9 |
9 | Using a test light, backprobe between the daytime running lamps (DRL) control module harness connector C2 terminal C to ground. Does the test light illuminate? | -- | Go to Step 11 | Go to Step 10 |
10 | Repair the poor connection or open in circuit 1239. Is the repair complete? | -- | Go to Exterior Lights System Check or Headlight System Check | -- |
11 | Using a test light, backprobe between the DRL control module harness connector C2 terminal F to ground. Does the test light illuminate? | -- | Go to Step 13 | Go to Step 12 |
12 | Repair poor connection or open in circuit 41 between fuse block terminal B4 and the DRL control module harness connector C2 terminal F. Is the repair complete? | -- | Go to Exterior Lights System Check or Headlight System Check | -- |
13 | Using a test light, backprobe between the control module harness connector C2 terminal C and terminal A. Does the test light illuminate? | -- | Go to Step 15 | Go to Step 14 |
14 | Repair poor connection or open in circuit 1750 between the DRL control module harness connector and G201. Is the repair complete? | -- | Go to Exterior Lights System Check or Headlight System Check | -- |
15 | Using a test light, backprobe between B+ and the DRL control module harness connector C1 terminal F. Does the test light illuminate? | -- | Go to Step 16 | Go to Step 14 |
16 | Using a test light, backprobe between B+ and the DRL control module harness connector C2 terminal E. Does the test light illuminate? | -- | Go to Step 17 | Go to Step 20 |
17 |
Does the test light illuminate? | -- | Go to Step 19 | Go to Step 18 |
18 | Adjust or replace the park brake indicator switch. Refer to Park Brake Cable Service/Adjustment in Park Brake. Is the repair complete? | -- | Go to Exterior Lights System Check or Headlight System Check | -- |
19 | Repair short to ground in circuit 1830. Is the repair complete? | -- | Go to Exterior Lights System Check or Headlight System Check | -- |
20 | Replace the DRL control module. Refer to Daytime Running Lights (DRL) Control Module Replacement . Is the repair complete? | -- | Go to Exterior Lights System Check or Headlight System Check | -- |
21 | Disconnect the DRL ambient light sensor. Do the low beam headlamps and park lamps turn on? | -- | Go to Step 23 | Go to Step 22 |
22 | Inspect circuit 1137 for a short to ground. Is there a short in circuit 1137? | -- | Go to Step 25 | Go to Step 24 |
23 | Replace the DRL ambient light sensor. Refer to Daytime Running Lamp (DRL) Ambient Light Sensor Replacement . Is the repair complete? | -- | Go to Exterior Lights System Check or Headlight System Check | -- |
24 | Repair short to ground in circuit 1137. Is the repair complete? | -- | Go to Exterior Lights System Check or Headlight System Check | -- |
25 | Inspect circuit 1138 for a short to ground. Is there a short in circuit 1138? | -- | Go to Step 26 | Go to Step 20 |
26 | Repair short to ground in circuit 1138. Is the repair complete? | -- | Go to Exterior Lights System Check or Headlight System Check | -- |
