GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 Safari - 4WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Headlamps Inoperative - Left High Beam

Step

Action

Value(s)

Yes

No

Important: Check for inoperative bulb before beginning diagnostic procedure.

1

Did you perform the Lighting Diagnostic System Check?

--

Go to Step 2

Diagnostic System Check - Lighting Systems

2

With DMM, check for continuity in CKT 1200 (PNK) between splice S105 and the inoperative LH high beam headlamp.

Is the wire functional?

--

Go to Step 4

Go to Step 3

3

Repair the OPEN in CKT 1200 (PNK) between splice S105 and the inoperative LH high beam headlamp.

Is the repair complete?

--

Go to Step 5

--

4
    • FOR SEALED BEAM HEADLAMPS - Replace sealed beam headlamp socket/assembly Sealed Beam Headlamp Replacement
    • FOR COMPOSITE HEADLAMPS - Check for OPEN in CKT 712 (YEL) between cavity B and splice S132, if not fault found, replace composite socket/assembly. Headlamp Replacement

Is the repair complete?

--

Go to Step 5

--

5

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2