AC5 - Check PIP Circuit For Short to Power

- Key "OFF".

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

- Ignition Control Module (ICM) disconnected.

- Key "ON", engine "OFF".

- Measure voltage between test pin 56 at breakout box and battery negative post.

- Is voltage greater than 7.0 volts?

Yes -- Service short to power. Remove breakout box. Reconnect all components. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)

No -- Go to AC6. AC6 - Check PIP Circuit Continuity