X47 - Check CCRM

- Key Off.

- Cooling fan disconnected.

- Reconnect CCRM.

- Scan Tool connected.

- Key On, Engine Off.

- Access Output Test Mode on Scan Tool.

- Turn Low Speed Fan On.

- Measure voltage between the Power-to-(Low Speed) Fan circuit pin at the cooling fan vehicle harness connector and the battery negative post.

- Is voltage greater than 10.5 volts?

YES -- Key Off. REPLACE PCM. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes

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