TEST OR INSPECTION
Install crew cab in-line 15 amp fuse (WP 0394). Disconnect main wire harness crew
cab wire harness connector. Check for 10 to 14 VDC between wire 2075 at main wire
harness connector, terminal P and a known good ground.
If 10 to 14 VDC are present, repair wire 2075 in crew cab wire harness
if repairable (TM 9-2320-325-14&P), or replace crew cab wire
harness (WP 0446).
If 10 to 14 VDC are not present, repair wire 2075 in main wire harness
if repairable (TM 9-2320-325-14&P), or replace main wire
harness (WP 0455).