Note. For circuit reference, see WIRING DIAGRAMS and/or CONNECTOR IDENTIFICATION .
Circuit Description
ATF temperature sensor converts fluid temperature into a resistance value which is input to ECM. DTC is set when temperature sensor resistance is less than 79 ohms, or after engine has been operating for 15 minutes or more, temperature sensor resistance is more than 156 k/ohms. Either condition must be set for .5 second or more. Possible causes
- Open or short in ATF temperature sensor circuit.
- ATF temperature sensor malfunction.
- ECM malfunction.