Operation CHARM: Car repair manuals for everyone.

4L80 Automatic Transmission

Code 14 Coolant Temp Sensor Circuit (High Temp Indicated)
Code 15 Coolant Temp Sensor Circuit (Low Temp Indicated)
Code 21 Throttle Position Sensor (Signal Voltage High)
Code 22 Throttle Position Sensor (Signal Voltage Low)
Code 24 Output Speed Sensor
Code 28 Pressure Switch Manifold Fault
Code 39 Torque Converter Clutch Stuck Off
Code 58 Transmission Temp Sensor Circuit (High Temp Indicated)
Code 59 Transmission Temp Sensor Circuit (Low Temp Indicated)
Code 68 Overdrive Ratio Error
Code 73 Force Motor Current (Current Error)
Code 75 System Voltage Low
Code 81 QDM Fault (Solenoid B)
Code 82 QDM Fault (Solenoid A)
Code 83 TCC QDM Fault
Code 85 Undefined Ratio
Code 86 Shift Solenoid B Stuck on
Code 87 Shift Solenoid B Stuck Off