Fuses
FOG LP Fuse
Location: Underhood junction block
Type: 15A Minifuse
Feeds: Fog lamp relay
If the following system is operating normally, the fuse is most likely good:
Both fog lamps
If the fuse is blown, determine the cause of the blown fuse and repair.
Replace the fuse as needed.
PARK Fuse
Location: Underhood junction block
Type: 10A Minifuse
Feeds: Circuit 240
If the following systems are operating normally, the fuse is most likely good:
All lighting except for high/low beam headlamps
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.
I/P Splice Pack #1
Location: Taped to harness behind I/P cluster
The systems grounded by I/P Splice Pack #1 are grounded redundantly with I/P Splice Pack #2 at ground point location D, the I/P chassis ground. If one of the following systems is operating normally the ground circuit is most likely good:
| • | I/P dimmer |
| • | Cruise control |
| • | Headlamps |
| • | Cigar lighter element |
Check for OPENS/SHORTS.
Repair as needed.
Right Forward Lamp Splice Pack
Location: Behind right front headlamp
The right side forward lamp splice pack provides a ground path for the right side of the forward lamp harness. If one of the following systems is operating normally the ground circuit is most likely good:
| • | Washer pump |
| • | All right side forward lamps |
Check for OPENS/SHORTS.
Repair as needed.
Components
Fog Lamps
Visually inspect the fog lamps. Check the resistance through the lamp.
Check connections/terminals for damage or corrosion.
Repair/replace as needed.
Fog Lamp Relay
The window, RR defog, fog lamp and A/C relays are interchangeable with each other.
Substitute another relay to see if the problem is fixed.
Replace as needed.
Fog Lamp Switch
Check the fog lamp switch illumination bulb. It should be lit when the headlamp switch is in PARK or HDLP. It should not be lit if the park or headlamp switches are OFF.
The fog lamp relay should click when the fog lamp switch is turned ON and click again when the fog lamp switch is turned OFF.
Repair/replace as needed.
I/P Dimmer
Refer to Dim Illumination Lamps for testing.
Repair/replace as needed.
