Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 1994 >> Mustang V6-232 3.8L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Pinpoint Tests >> DR - Cylinder Identification (CID) Circuit >> DR3 - Check VPWR to CMP Sensor
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

DR3 - Check VPWR to CMP Sensor



- Key Off.

- Disconnect CMP sensor vehicle harness connector.

- Key On, Engine Off.

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

- Is voltage greater than 10.5 volts?

YES -- Go to DR4. DR4 - Check PWR GND to CMP Sensor

NO -- SERVICE open in VPWR circuit. RECONNECT all components. Complete PCM reset to clear DTCs. Clearing Diagnostic Trouble Codes

Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes
pro multis · About Operation CHARM