Disconnect batteries to reset diagnostic computer?
Disconnect batteries to reset diagnostic computer?
My tranny temp light is stuck on, even when started cold so I want to reset the computer and see if it goes away. What's the proper procedure? Do I have to disconnect the positive leads on both batteries and does anyone know for how long? Thanks
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FalcoColumbarius
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Re: Disconnect batteries to reset diagnostic computer?
There's no computer monitoring a 1991 Starwagon, it's mechanical.
Falco.
Falco.
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jessef
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Re: Disconnect batteries to reset diagnostic computer?
The A/T light is monitored electrically (sensor), not mechanically as the member above said.
You cannot reset it. It has to be replaced.
Before you do, make sure the fluid is a red/pinkish color and does not smell burnt. Have a shop do a drain and check the filter/pan for metal shavings. If there are any and/or the fluid smells burnt, then the transmission may require extensive work ~ rare case with auto's unless neglected.
If it's just the sensor, it's an easy re&re.
Reasons why the light will come on and stay on:
-Transmission fluid requires changing
-Electrical problem in the wiring for the transmission sys. Sensor wire may have popped off or become corroded.
-The A/T sensor could be faulty
-Fan on the transmission cooler at the drivers side front wheel is not working
You cannot reset it. It has to be replaced.
Before you do, make sure the fluid is a red/pinkish color and does not smell burnt. Have a shop do a drain and check the filter/pan for metal shavings. If there are any and/or the fluid smells burnt, then the transmission may require extensive work ~ rare case with auto's unless neglected.
If it's just the sensor, it's an easy re&re.
Reasons why the light will come on and stay on:
-Transmission fluid requires changing
-Electrical problem in the wiring for the transmission sys. Sensor wire may have popped off or become corroded.
-The A/T sensor could be faulty
-Fan on the transmission cooler at the drivers side front wheel is not working