Interior Lamps Diagnosis Dome Lamps

Fuses

Location: IPJB

Type: 10A Minifuse

Feeds: Circuit 340

If the following systems are operating normally, the fuse is most likely good:

• Cargo lamp
• Dome lamp
• Remote mirror switch
• Map lights (SL/SC only)
• Power door locks
• Radio

If the fuse is blown, determine the cause of the blown fuse and repair.

Replace the fuse as needed.

Grounds

Before checking the ground circuit from the faulty component all the way to the ground stud, check the circuit from the splice pack to ground by testing some of the other subsystems grounded by the same splice pack. If the other subsystems function properly, it is most likely that the path from the splice pack to ground is good, or at least one of the paths is good with redundantly grounded splice packs.

Location: Left side under drivers seat

The left body ground splice pack provides a ground path for the left side of the body harness. If one of the following systems is operating normally the ground circuit is most likely good:

• Power door locks
• Dome lamp
• Door jamb/ajar switches
• Sunroof

Check for OPENS/SHORTS.

Repair as needed.

Check for damaged or corroded terminals or connectors. Check for terminal tightness.

Check voltage across the bulb socket.

• With the bulb removed and switch in ON position, measure voltage between socket terminals. Battery voltage should be measured.
• With the bulb removed and switch in DOOR position and a door open, measure voltage between socket terminals. Battery voltage should be measured.

Repair/replace as needed.