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Home >> Ford >> 1994 >> Thunderbird V8-281 4.6L SOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Pinpoint Tests >> X - Constant Control Relay Module (CCRM) >> X1 - Check VPWR Circuit Continuity
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X1 - Check VPWR Circuit Continuity



- Key Off.

- IAC disconnected.

- Disconnect CCRM.

- Disconnect Scan Tool from DLC.

- Measure resistance between the VPWR circuit at the IAC solenoid vehicle harness connector and Pins 12 and 24 (VPWR) of the CCRM vehicle harness connector.

- Are both resistances less than 5.0 ohms?

YES -- RECONNECT IAC solenoid. GO to X2. X2 - Check B(+) and IGN Start/Run Voltage to CCRM

NO -- SERVICE open VPWR circuit between the CCRM and the splice to the IAC solenoid. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes