NA6 - Check IDM Circuit For Short to VREF and PIP

- Key "OFF".

- Breakout box installed, Powertrain Control Module (PCM) disconnected.

- Ignition Control Module (ICM) disconnected.

- Ignition coil disconnected on Non-Computer Control Dwell (CCD) vehicles.

- Disconnect Scan Tool from Data Link Connector (if applicable).

NOTE: For proper results of this test, the Scan Tool must be disconnected. Due to the circuitry of the Scan Tool and the vehicle, voltage can be fed to the VREF circuit giving a false indication of a short to power.

For Shorts To VREF:

- Measure resistance between test pin 4 and test pin 26 at the breakout box.

For Shorts To PIP circuit:

- Measure resistance between test pin 4 and test pin 56 at the breakout box.

- Is each resistance greater than 10,000 ohms?

Yes -- Go to NA7. NA7 - Check IDM Circuit For Short to Ground

No -- Service short circuits. Remove breakout box. Reconnect all components and Scan Tool (if applicable). Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)