D6 - Check For C1 High at ICM

^ Key off.

^ Connect ICM tee to ICM and vehicle harness connector.

^ DVOM on 20 volt DC scale.

^ Key on, engine off.

^ Measure voltage between (+) J53 (C1I) and (-) J7 (B-) at breakout box.

^ Is DC voltage reading greater than 10.0 volts?

YES -- GO to D7. D7 - Check For C2 High at ICM

NO -- Check connectors, service or replace harness. C1 is open. Remove all test equipment. Reconnect all components. Clear continuous memory. Rerun quick test.