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Possible Causes

Possible Causes
SHIFT LEVER ASSEMBLY OUT OF ADJUSTMENT
(T54) TEMPERATURE SENSOR SIGNAL CIRCUIT OPEN
(T54) TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
(T54) TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO OTHER CIRCUITS
(T54) TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO ANOTHER CIRCUIT(S)
SHIFT LEVER ASSEMBLY
TRANSMISSION CONTROL MODULE (TCM)

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to STANDARD PROCEDURE .