Transmission Control Module (TCM) - Electrical Diagnostics

• Diagnostic Code Index
• DTC Troubleshooting
  • P0219-Engine OVERSPEED
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0562-Battery Voltage Low
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0563-Battery Voltage High
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0571-Brake Switch 1 Performance
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0602-Control Module PROGRAMING Error/Not Programmed
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0610-Ecu Vehicle Options Mismatch
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0641-Sensor Reference Voltage 1 Circuit
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0707-Transmission Range Sensor Circuit Low
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0708-Transmission Range Sensor Circuit High
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0711-Transmission Temperature Sensor Performance
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0712-Transmission Temperature Sensor Low
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0713-Transmission Temperature Sensor High
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0716-Input Speed Sensor 1 Circuit Performance
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Possible Causes
    • Diagnostic Test
  • P0717-Input Speed Sensor 1 Circuit No Signal
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0721-Output Speed Sensor Circuit Performance
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Possible Causes
    • Diagnostic Test
  • P0722-Output Speed Sensor Circuit No Signal
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0730-Incorrect Gear Ratio
    • Notes
    • Theory Of Operation
    • Possible Causes
    • Diagnostic Test
  • P0741-Torque Converter Clutch Circuit Performance
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0746-Line Pressure Solenoid Performance
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0776-Secondary Pressure Solenoid Stuck Off (High Pressure)
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0777-Secondary Pressure Solenoid Stuck On (Low Pressure)
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Possible Causes
    • Diagnostic Test
  • P0826-Up/Down Shift Switch Circuit
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0842-Primary Oil Pressure Sensor Circuit Low
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0843-Primary Oil Pressure Sensor Circuit High
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0847-Secondary Oil Pressure Sensor Circuit Low
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0848-Secondary Oil Pressure Sensor Circuit High
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0962-Pressure Control Solenoid A Control Circuit Low
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0963-Pressure Control Solenoid A Control Circuit High
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0966-Pressure Control Solenoid B Control Circuit Low
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P0967-Pressure Control Solenoid B Control Circuit High
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P161B-Battery Disconnect / TCM Internal
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P1661-Sensor Ground Reference Circuit
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Possible Causes
    • Diagnostic Test
  • P1679-Calibration Not Learned
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P167A-Calibration Mismatch
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P1702-Primary Oil Pressure Sensor / Secondary Oil Pressure Sensor Correlation
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P1723-Lock Up / Select Control Circuit
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P1729-Transmission Ratio Control Circuit
    • Notes
    • Theory Of Operation
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P1744-Torque Converter Lock-Up Clutch Heat Control
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P198A-AWD System Performance
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P2769-Torque Converter Clutch Circuit Low
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • P2770-Torque Converter Clutch Circuit High
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • U0001-Can C Bus
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
  • U0100-Lost Communication With ECM/Pcm
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
  • U0121-Lost Communication With Antilock Brake Module
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
  • U0141-Lost Communication With IPM (FCM/TIPM)
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
  • U1146-Lost Communication With External Memory
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • U1400-Implausible TPS Signal Received
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • U1401-Implausible Engine Speed Signal Received
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Possible Causes
    • Diagnostic Test
  • U1407-Implausible Engine Torque Request Signal Received
    • Notes
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • U140F-Implausible Engine Variant Data
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • U1410-Implausible FCM Variant Data
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • U1412-Implausible Vehicle Speed Signal Received
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • U1424-Implausible Engine Torque Signal Received
    • Notes
    • Theory Of Operation
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • U1425-Implausible Pedal Position Signal Received
    • Notes
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • U1426-Implausible TCC Slip Request Signal Received
    • Notes
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • U1428-Received Engine Torque Request Signal Stuck
    • Notes
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
  • U1429-Received Engine Torque Signal Stuck
    • Notes
    • When Monitored:
    • Set Condition:
    • Possible Causes
    • Diagnostic Test
• Standard Procedure
  • CVT - Pre-Diagnostic Troubleshooting Procedure
    • Notes
    • Diagnostic Test
  • CVT Verification Test
    • Notes
    • Diagnostic Test