G 3500 1 Ton Van V8-379 6.2L DSL VIN J FI (1992)
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Dome Lamp: Initial Inspection and Diagnostic Overview
Before proceeding to the system diagnosis perform the following visual inspections:
1. Check to see that the HORN-DM Fuse is not blown. Replace if blown.
2. If only one Dome/Stepwell lamp does not operate, INSPECT wires at lamp socket, check for poor bulb/socket connection or REPLACE bulb.