DC7 - Check VPWR Circuit Voltage

- Key Off.

- Disconnect MAF sensor.

- Key On, Engine Off.

- Measure the voltage between VPWR circuit at the MAF sensor vehicle harness connector and the battery negative post.

- Is the voltage greater than 10.5 volts?

YES -- VPWR harness circuit from CCRM to MAF sensor OK. Go to DC8. DC8 - Check Continuity of VPWR Circuit

NO -- Service open VPWR circuit. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes