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

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Go to Step 2

Diagnostic System Check - Lighting Systems

2

With DMM, check for continuity in CKT 1201 (DK BLU) between splice S131 and the inoperative LH low beam headlamp.

Is the wire functional?

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Go to Step 4

Go to Step 3

3

Repair the OPEN in CKT 1201 (DK BLU) between splice S131 and the inoperative LH low beam headlamp.

Is the repair complete?

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Go to Step 5

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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?

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Go to Step 5

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5

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2