Daytime Running Lamps (DRL) Headlamps Always On Standard
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the DRL System Check? | -- | Go to Step 2 | |
2 | Use the scan tool in order to read the body control module (BCM) current trouble codes. Does the scan tool show any DTCs? | -- | Go to Diagnostic Trouble Code (DTC) List/Type in Body Control System | Go to Step 3 |
3 | Remove the DRL relay from the underhood fuse block. Do the daytime running lamps remain on? | -- | Go to Step 4 | Go to Step 5 |
4 | Locate and repair a short to ground in CKT 711 (DK GRN/WHT) between the left headlamp high beam bulb and the underhood fuse block. Is the repair complete? | -- | -- | |
5 | Replace the DRL relay. Is the repair complete? | -- | -- |
Daytime Running Lamps (DRL) Headlamps Always On Envoy
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the DRL System Check? | -- | Go to Step 2 | |
2 |
Does the Headlamp Request Switch display the specified value? | ACTIVE | Go to Step 5 | Go to Step 3 |
3 |
Does the test lamp illuminate? | -- | Go to Step 7 | Go to Step 4 |
4 | Locate and repair an open in CKT 103 (WHT) between the BCM and the underhood fuse block. Is the repair complete? | -- | -- | |
5 |
Is the resistance equal to or less than the specified value? | 1 ohms | Go to Step 6 | Go to Step 8 |
6 | With the J 39200 DMM still connected to cavity 1 at the DRL relay socket, disconnect body control module (BCM) connector C2. Is the resistance equal to or less than the specified value? | 1 ohms | Go to Step 8 | Go to Step 7 |
7 | Replace the body control module. Refer to Body Control Module Replacement in Body Control System. Is the repair complete? | -- | -- | |
8 | Locate and repair a short to ground in CKT 592 (LT GRN/BLK). Is the repair complete? | -- | -- |
