I have random problems with my electical inside the car. One day the clock, power locks dont work. The next day cruise control stops, but the motor always runs without problems. Sometime the alarm will go off for no reason(the ping ping ping is very irritating when driving). If I hold the locking button down the alarm pings, also if I open the clovebox it pings and the bulb is good. I checked the fuses and wires to the fuses. The ground wire to the frame is good. I leave the dash tore apart so I can play with the wire when it pings while driving. Sometimes works sometimes not.




87, 240 wagon 120,000. 83, 240 wagon 160,000.

There are maybe a half-dozen different ground points: behind the dash, under the center console at floor level, at each corner of the car (for the lights), and bad connections at some. or all of these points could cause or contribute to the problems you report. Find each of these ground points, disassemble, clean, and reconnect them.
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David Brick, Santa Cruz CA