Headlamps, Daytime Running Lamps (DRL) On With Park Brake Applied. GMC Truck Safari

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2000 🢒 Safari - 4WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Headlamps, Daytime Running Lamps (DRL) On With Park Brake Applied

Step	Action	Value(s)	Yes	No
1	Did you perform the Lighting Diagnostic System Check?	--	Go to Step 2	Diagnostic System Check - Lighting Systems
2	Check for OPEN in CKT 1134 (LT BLU). Refer to Brake Warning System Schematics in Hydraulic Brakes. Was an OPEN found and repaired?	--	Go to Step 3	Go to Diagnostic System Check - Body Control System in Body Control Systems
3	Turn thge igntion to the ON position. Apply the park brake. Turn the headlamp switch to the AUTO position. Illuminate a shop lamp next to the DRL light sensor. Do the DRL lamps illuminate?	--	Go to Step 2	System OK

Step

Action

Value(s)

Yes

Did you perform the Lighting Diagnostic System Check?

Check for OPEN in CKT 1134 (LT BLU). Refer to Brake Warning System Schematics in Hydraulic Brakes.

Was an OPEN found and repaired?

Do the DRL lamps illuminate?

System OK