TS-09, Troubleshooting - Electrical (including Instruments)
This troubleshooting guide is intented to help identify and repair specific electrical system problems. The following is a list of problem symptoms discussed in this guide:
|Relay X Bad.||Remove Relay X from terminal board and install jumper in place of primary contacts to see if functions are restored.||N/A|
Dash Lights are too dim.
|Flaking of instrument bezel reflective coating, burned out bulbs, or bulb wattage too low.||Refer to Instrument Panel Light procedure.||ELECT-08|
Rear Defroster Doesn't Work
|Damaged lug, damaged grid, loss of power.||Refer to Rear Hatch Defroster Troubleshooting and Repair procedure.||ELECT-05|
Battery goes dead after a short period of time.
|Possible ground on electrical system.||Use the Excessive Battery Discharge Rate procedure to try and isolate the problem.||ELECT-26|
Fuse #11 Blown (1985 through 1989 944, 944S, 944S2, 944 Turbo)
|Ground in glove compartment light wiring.||The red wire located on the glove compartment light of 1985 through 1989 944 series cars could rub against the metal brace above the glove compartment causing fuse # 11 to blow. This could be an intermittent condition.||To repair this, bend the red wire down away from the brace or switch the red and brown wire positions on the light assembly. This problem was addressed by TSB-98902.|
One of my instrument panel gauges is not working properly.
|Faulty gauge, sensor, or wiring.||Troubleshoot using Sensors and Gauges procedure.||ELECT-19|
My turn signal blinks faster on one side than the other.
|Dirty bulb socket or bulb contacts.||A rapidly blinking turn signal on one side is the result of a dirty bulb holder or dirty bulb contacts.||Remove the turn signal bulbs on the side that is blinking rapidly and clean the bulb sockets with a wire brush. Clean the contacts on the bulb with emery cloth or other mildly abrasive material. Coat the bulb contacts with a light coating of dielectric grease and reinstall.|
My turn signal light comes on but does not blink.
|Bad bulb or flasher relay.||If your turn signal light comes on but does not blink on one side, you most likely have a bad bulb on that side. Remove the bulbs and determine which bulb is bad by looking for a broken filament in the bulbs. If the turn signal lights come on but, do not blink on either side, your flasher relay is most likely bad and should be replaced.||N/A|
Clark's Garage © 1998