B5 - Check For IDM Short High In Harness

^ Key off.

^ DVOM on 20 volt DC scale.

^ Key on, engine off.

^ Measure voltage between (+)J41 (IDM I) and (-)J7 (B-) at breakout box.

^ Is DC voltage less than 0.5 volts?

YES -- Go to B6. B6 - Check For IDM Short to Ground In Harness

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