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Re: Multifunction Switch/Sensor II
> In a message dated 9/2/99 6:51:02 PM Eastern Daylight Time, email@example.com
> << >I also have an unusual problem with my autocheck light system.
> >About 30 seconds after startup, my coolant temp/level light goes on and
> >stays on for the duration. I unplugged the multifunction switch from
> >the sender at the top of the head, and it still shines brightly (only
> >now the coolant guage will not work).
> 1. Coolant level is low;
> 2. Coolant level sensor in overflow tank is bad; or,
> 3. Multifunction switch/sensor is bad.
> #3 is most likely, assuming all wiring connections are good. These switches
> seem to fail regularly. They go for ~$50.
> i just replaced the multifunction sensor in my '86 5kTQ. i had the same prob
> as you, the coolant level warning light was coming on 30 secs after i started
> the car.. i went thru 2 good used overflow tanks before i got smart and
> replaced the multifunction sensor switch. took less than 5 minits to replace.
> '86 5kT, TQ
I unplugged the sensor and the light still stayed on in the autocheck display.
does that mean that I have a "printed circuit board problem" behind the instrument
cluster? Also, does anyone know if the circuit boards are interchangeable between
my '91 CQ 20v and any other vehicles?Thanks again