TE - Testing Notes

NOTE: You should enter this Pinpoint Test only when you have been directed here from Quick Test.


REMEMBER


To prevent the replacement of good components, be aware that the following non-EEC areas may be at fault.


- Transmission fluid level
- Transmission operating temperature
- Ambient Temperature


This Pinpoint Test is intended to diagnose only the following:


- TOT sensor
- Harness circuits: TOT and SIG RTN
- Processor assembly


DESCRIPTION

The Transmission Oil Temperature (TOT) sensor is a thermistor that changes resistance in response to temperature. The TOT sensor resistance decreases as the surrounding fluid temperature increases. The resistance variation is converted into a voltage signal and sent to the processor to give an indication of the transmission fluid temperature.