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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 >> DR - Cylinder Identification (CID) Circuit >> DR8 - Check For Shorts In PCM
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DR8 - Check For Shorts In PCM



- Key Off.

- CMP sensor disconnected.

- Breakout box installed.

- Connect PCM to breakout box.

- Measure resistance between Test Pin 85 (CID) and Test Pins 51,103 (PWR GND), 71, 97 (VPWR), 91 (SIG RTN), and 23 (IGN GND) at the breakout box.

- Is each resistance greater than 500 ohms?

YES -- Go to DR9. DR9 - Check CMP Sensor Output

NO -- REPLACE PCM. REMOVE breakout box. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes
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