JC54 - Check C1 Low at Coil Connector - Coil Disconnected

- Key Off.

- Disconnect right coil from coil tee, leave EI diagnostic harness connected to vehicle harness right coil connector.

- DVOM on 40 volt DC scale.

- Key On, Engine Off.

- Measure voltage between (+)J3 (RC1C) and (-)J7 (B-) at breakout box.

- Is DC voltage reading less than 0.5 volts?

YES -- GO to JC55. JC55 - Check For C2 Low at Coil Connector - Coil Disconnected

NO -- C1 high fault. GO to JC62. JC62 - Check For C1 High - ICM and Coil Disconnected