FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

KC13 - Check For Short to Power



- Key "OFF".

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

- Both Secondary Air Injection Bypass/Diverter (AIRB/AIRD) solenoids disconnected.

- Measure resistance between AIRB circuit at the breakout box and test pins 37 and 57. Measure resistance between AIRD circuit at the breakout box and test pins 37 and 57 at the breakout box.

- Is each resistance greater than 10,000 ohms?

Yes -- Replace PCM. Remove breakout box. Reconnect both solenoids. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)

No -- Service short to power. Remove breakout box. Reconnect PCM and AIRB/AIRD solenoids. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions) If Diagnostic Trouble Code (DTC) is present, replace PCM.