Troubleshooting Hints

TRY THE FOLLOWING CHECKS BEFORE DOING THE SYSTEM CHECK:
1. Check PWR ACC Circuit Breaker by operating the Automatic Door Locks.
2. Check GAGES Fuse by observing the Fuel Gage.
3. If one or more of the grid lines do not heat, refer to grid line repair procedures.
4. If the Rear Defogger grid becomes warm, but On Indicator does not light, check PPL/WHT (293) and BLK (150) wires for an open. If OK, replace Wiper Switch Assembly.
5. If the Wiper Switch Assembly Light is inoperable with the Light Switch in PARK or HEAD, check bulb and wiring to bulb (see schematic).