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Home >> Ford >> 1994 >> Mustang V6-232 3.8L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Pinpoint Tests >> DC - Mass Air Flow (MAF) Sensor >> DC13 - Check MAF RTN Circuit Continuity
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DC13 - Check MAF RTN Circuit Continuity



- Key Off.

- MAF sensor disconnected.

- Breakout box installed, PCM disconnected.

- Measure the resistance between MAF RTN circuit at the MAF sensor vehicle harness connector and Test Pin 36 (MAF RTN) at the breakout box.

- Is the resistance less than 5.0 ohms?

YES -- MAF RTN harness circuit to PCM is OK. Go to D14. DC14 - Check MAF Circuit For Short to Ground In PCM

NO -- SERVICE open in MAF RTN harness circuit. REMOVE breakout box. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes
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