Theory Of Operation

The C1 Pressure Control Linear solenoid is used to control overall transmission line pressure. The Transmission Control Module (TCM) monitors the Solenoid current load and resistance. If a fault is detected, the transmission will go into limp in mode, the Torque Converter Clutch (TCC) will be disabled, and the MIL will be illuminated.

• When Monitored 

  Ignition on, engine running.

  System voltage is greater than 10.5 volts.

  No solenoid short to voltage DTCs set.

• Set Condition: 

  C1 Pressure Control Linear solenoid current is less than 0.02 of an amp for more than 0.1 of a second for five consecutive tests.

Always perform the AW60T Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  AW60T PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE   .