X25 - FC/LFC Circuit Fault Isolation Check

- Key Off.

- Breakout box installed, PCM disconnected.

- Reconnect CCRM.

- Key On, Engine Off.

- Jumper Test Pin 68 to Test Pin 77 (PWR GND) at the breakout box.

- Does fan continue to run?

YES -- REPLACE CCRM. REMOVE breakout box. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes

NO -- REPLACE PCM. REMOVE breakout box. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes