SC2
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 (I/P chassis ground). If one of the following systems is operating normally the ground circuit is most likely good.
^ Perf/Norm switch
^ I/P dimmer
^ Cruise module
^ Headlamp switch
^ Cigar lighter element
Check for OPENS/SHORTS.
Repair as needed.
If this component is good, go to the next item indicated on the "Complaint-Condition" chart.
Circuit 350G
Location: Connects headlamp switch component cavity C to I/P ground splice pack #1 cavity H.
Type: Black 20 gage wire
Function: This circuit provides ground for the headlamp switch.
Check for OPENS/SHORTS.
Repair as needed.
If this component is good, go to the next item indicated on the "Complaint-Condition" chart.
Circuit 350Y
Location: Connects I/P ground splice pack #1 cavity A to chassis ground ring terminal.
Type: Black 18 gage wire
Function: This circuit provides ground for the I/P ground splice pack #1.
Check for OPENS/SHORTS.
Repair as needed.
If this component is good, go to the next item indicated on the "Complaint-Condition" chart.
Circuit 150Z
Location: Connects underhood junction block connector cavity E4 to left forward lamp ground ring terminal.
Type: Black 14 gage wire
Function: This circuit provides ground for the fog lamp switch.
Check for OPENS/SHORTS.
Repair as needed.
If this component is good, go to the next item indicated on the "Complaint-Condition" chart.