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Theory of Operation The transmission system uses two speed sensors. One is used to measure input rpm (primary pulley) and one to The Output Speed sensor detects the secondary pulley rpm by the use of a three-wire magnetic pickup device that • When Monitored: • Set Condition: Possible Causes (T16) TRANSMISSION CONTROL OUTPUT CIRCUIT OPEN (T52) OUTPUT SPEED SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE (T52) OUTPUT SPEED SENSOR SIGNAL CIRCUIT OPEN (T52) OUTPUT SPEED SENSOR SIGNAL CIRCUIT SHORT TO GROUND (T130) OUTPUT SPEED SENSOR GROUND CIRCUIT OPEN OUTPUT SPEED SENSOR TRANSMISSION CONTROL MODULE Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - Diagnostic Test 1. CHECK TO SEE IF THE DTC IS ACTIVE With the scan tool, read Transmission DTCs. Is the status Active for this DTC or is the STARTS SINCE SET counter 2 or less? Yes >> Go To 2 No >> Go To 8 2. CHECK THE (T16) TRANSMISSION CONTROL OUTPUT CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the Output Speed Sensor harness connector. Ignition on, engine not running. With the scan tool under TIPM, actuate the Transmission. Using a 12-volt test light connected to ground, check the (T16) Trans- PM AUTOMATIC - CVT-ELECTRICAL DIAGNOSTICS 21 - 171 |