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Home >> Cadillac >> 2006 >> STS Base, 3.6 7, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Lighting Systems (Symptoms) >> Daytime Running Lamps (DRL) Inoperative (Norway/Sweden)

Daytime Running Lamps (DRL) Inoperative (Norway/Sweden)

Daytime Running Lamps (DRL) Inoperative (Norway/Sweden)

Step Action Yes No
Schematic Reference: Exterior Lights Schematics
Connector End View Reference: Lighting Systems Connector End Views
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2 Do the low beam headlamps operate properly? Go to Step 3  Go to Headlamps Inoperative - Low Beams (Standard Headlamps)  or Headlamps Inoperative - Low Beams (HID Headlamps) 
3
  1. Verify that the park brake is not APPLIED.
  2. Install a scan tool.
  3. Turn ON the ignition, with the engine OFF.
  4. With a scan tool, observe the Parking Brake Switch parameter in the instrument panel module (IPM) inputs list.
Does the scan tool display RELEASED?
Go to Step 4  Go to Symptoms - Hydraulic Brakes
4
  1. Turn OFF the ignition.
  2. Remove the headlamp low beam relay located in the underhood fuse block.
  3. Install a test lamp between the headlamp low beam relay battery voltage circuit terminal and the headlamp low beam relay control circuit terminal. Refer to Circuit Testing .
  4. Turn ON the ignition, with the engine OFF.
  5. Operate the DRL system.
Does the test lamp illuminate?
Go to Step 6  Go to Step 5 
5 Inspect for poor connections at the harness connector of the IPM. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?
Go to Step 8  Go to Step 7 
6 Replace the headlamp low beam relay. Refer to Relay Replacement (Within an Electrical Center) or Relay Replacement (Attached to Wire Harness) .
Did you complete the replacement?
Go to Step 8  -
7 Replace the IPM. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
Go to Step 8  -
8 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 2