DTC P0989 Retarder Pressure Sensor Failed Low.DTC P0977 Shift Solenoid 2 (SS2) Control Circuit High.DTC P0976 Shift Solenoid 2 (SS2) Control Circuit Low.DTC P0975 Shift Solenoid 2 (SS2) Control Circuit Open.DTC P0974 Shift Solenoid 1 (SS1) Control Circuit High.DTC P0973 Shift Solenoid 1 (SS1) Control Circuit Low.DTC P0971 Pressure Control Solenoid 3 (PCS3) Control Circuit High.
DTC P0634 TCM Internal Temperature Too High.DTC P0610 TCM Vehicle Options (TransID) Error.DTC P0218 Transmission Fluid Over-Temperature.DTC P0123 Pedal Position Sensor High Voltage.DTC P0122 Pedal Position Sensor Low Voltage.DTC C1313 Retarder Request Sensor Failed High.DTC C1312 Retarder Request Sensor Failed Low.
DIAGNOSTIC TROUBLE CODE LIST AND DESCRIPTION SHIFT SELECTOR DISPLAYS RELATED TO ACTIVE CODES ELECTRONIC FLUID LEVEL READING (SHIFT SELECTOR) TESTING AT TRANSMISSION FEEDTHROUGH CONNECTOR FOR INTERNAL HARNESS OPENS, SHORTS BETWEEN WIRES, AND SHORTS-TO-GROUND HYDRAULIC OPERATION DURING ELECTRICAL INTERRUPTION
RESETTING A TCM PARAMETERS TO SUPPORT ENGINE UPDATE IMPORTANT INFORMATION IN THE TROUBLESHOOTING PROCESS