KC12 - Check For Short to Ground

- Key "OFF".

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

- Disconnect both Secondary Air Injection Bypass/Diverter (AIRB/AIRD) solenoids.

- Measure resistance between AIRB circuit at the breakout box and test pins 40, 46 and 60. Measure resistance between AIRD circuit at the breakout box and test pins 40, 46 and 60 at the breakout box.

- Is each resistance greater than 10,000 ohms?

Yes -- Go to KC13. KC13 - Check For Short to Power

No -- Service short to ground. Remove breakout box. Reconnect PCM and AIRB/AIRD solenoids. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)