X33 - Check For Short In PCM

- Key Off.

- CCRM disconnected.

- Disconnect PCM.

- Key On, Engine Off.

- Is the fan running?

YES -- For two speed fan applications: Key Off. GO to X34. X34 - Check Power-to-Low Speed Fan Circuit For Short to Power

For one speed fan applications: SERVICE short to power in the Power-to-Fan circuit.

RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes

NO -- Key Off. REPLACE PCM. RECONNECT CCRM. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes