TA1 - System Identification

- Diagnostic Trouble Codes (DTC) 522, 525, or 528 resulted from the voltage being high at either:

- Pin 10 = A/C input

- Pin 30 = Park Neutral Position (PNP) / Clutch Pedal Position (CPP) input.

while cranking the engine or during Key On Engine Off Diagnostic Test Mode.

- Possible causes:
- A/C circuit shorted to power.
- CPP circuit open.
- PNP open.
- Damaged Powertrain Control Module (PCM).
- Starter relay disconnected during Self-Test.

- For Manual Transmissions: Go to TA2. TA2 - Check PNP/CPP Input

- For Automatic Transmissions: -- Go to TA10. TA10 - Check PNP Input