B9 - Check VPWR Circuit Voltage

- Key "OFF".

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

- Install Electronic Engine Controls (EEC) power relay.

- Key "ON", engine "OFF".

- Measure voltage between test pin 37/57 and test pins 40/60, 46 at breakout box.

- Is voltage greater than 10.5 volts?

Yes -- Service open or short to ground in VPWR circuit between PCM and EEC power relay. Remove breakout box. Reconnect PCM. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)

No -- Replace EEC power relay. Remove breakout box. Reconnect PCM. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)