AA4 - Check For ICM Power

^ Key off.

^ Connect DI diagnostic harness to EEC breakout box. Connect B- lead to negative post of battery, and connect ICM tee to ICM and vehicle harness.

^ Do not connect B+ lead of DI diagnostic harness to battery.

CAUTION: Do not connect PCM to EEC breakout box when it is used with DI diagnostic harness.

^ Make sure PIP OPEN/NORMAL/SPOUT OPEN switch on DI diagnostic harness is in the normal position.

^ Use DI overlay on breakout box.

^ DVOM on 20 volt DC scale.

^ Key on.

^ Measure voltage between J5 (ICM PWR) and J7 (B-) at breakout box.


^ Is voltage greater than 10 volts DC?


YES -- Go to AA5. AA5 - Check For PIP Signal


NO -- Service power open to ICM in harness or connector. Remove all test equipment. Reconnect all components. Clear continuous memory. Rerun quick test.