Test Description

The numbers below refer to the step numbers on the diagnostic table.

1. 3. Use the scan tool in order to determine if the delivered torque signal has a valid duty cycle.
2. 9. This vehicle is equipped with a PCM which uses an Electrically Erasable Programmable Read Only Memory (EEPROM). When replacing the PCM, the replacement PCM must be programmed.

Fig 1: DTC C0244 Or P1689 Diagnostic Procedure (Steps 1-3)

Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC C0244 Or P1689 Diagnostic Procedure (Steps 4-11)

Courtesy of GENERAL MOTORS CORP.