Diagnostic Aids

Check for poor connections at PCM/TCM and transmission pass-thru connector.

Fig 1: Code 73 Schematic (Diesel) Pressure Control Solenoid (Current Error)

Fig 2: Code 73 Schematic (Gasoline) Pressure Control Solenoid (Current Error)

Fig 3: Code 73 Flow Chart Pressure Control Solenoid (Current Error)