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Transmission Position Sensor/Switch: Testing and Inspection









TEST DESCRIPTION
Tools Required
^ J 397754L60E Jumper Harness.
^ J 39200 Digital Multimeter.
^ J 35616 Connector Test Adapter Kit.

IMPORTANT: Whenever the transmission 20-way connector is disconnected and the engine is running, multiple DTCs will set. Be sure to clear these codes when you are finished with this procedure.

IMPORTANT: This procedure tests the Automatic Transmission Fluid Pressure Manual Valve Position Switch (TFP Val. Position Sw.) circuits and the Automatic Transmission Fluid Temperature (TFT) Sensor circuit. Do not use this procedure to test other Automatic Transmission circuits, refer to 4L60-E Automatic Transmission Internal Wiring Harness check.
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