DR7 - Check CID For Short to GND

- Key Off.

- Breakout box installed, PCM disconnected.

- CMP sensor disconnected.

- Measure resistance between Test Pin 85 (CID) and Test Pins 51,103 (PWR GND) and 91 (SIG RTN).

- Is each resistance greater than 10,000 ohms?

YES -- Go to DR8. DR8 - Check For Shorts In PCM

NO -- SERVICE CID circuit for short to GND or SIG RTN. REMOVE breakout box. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes