Common Electrical Connection Failure List

Component

Location

Symptom

Fix

Yr/Model

Notes

Fuel Pump relay

2)back firewall, rt of brake booster near ICU

2)First hard to start, then it won't start. Wiggling relay got it started.

Resoldered solenoid to circuit board.

1)85 500 SEC
2)91 560 SEC

 

Exterior lamp failure monitor unit

Largest module in the fuse box

Rt Fog light out, bulb OK and LF fog light works.

Unplugged module, popped off cover and resoldered pin 8 of the pin connector.

89 560 SEC

 
Cruise Control Amp Under driver side dash, above brake pedal. Ranged from not working at all when cold/cool outside to intermittent surging when warm out. Cleaned protective coating from back of PCB and soldered all transistors and large lead components. 89 560 SEC All the solder joints looked good, but problem went away after resoldering.
           

Please feel free to send me any additions to this list.  If you have a detail write up on your procedures for the fix, give me a link or the document and I'll incorporate it.

Any suggestion are more than welcome.

chwilka@hccanet.com