JC10 - Check For C1 Low at Coil Connector - Coil Disconnected

- Key Off.

- Disconnect the coil from the coil tee. Leave EI diagnostic harness coil tee connected to vehicle harness coil connector.

- DVOM on 40 volt DC scale.

- Key On, Engine Off.

- Measure voltage between (+)J6 (C1C) and (-)J7 (B-) at breakout box.

- Is DC voltage reading less than 0.5 volts?

YES -- Go to JC11. JC11 - Check For C2 Low at Coil Connector - Coil Disconnected

NO -- C1 high fault. Go to JC22. JC22 - Check For C1 Low - ICM and Coil Disconnected - KOEO