Operation CHARM: Car repair manuals for everyone.

C3 - Check For Good Spout to ICM




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


^ Turn switch on diagnostic cable to SPOUT OPEN.

^ Use DI overlay on breakout box.

^ DVOM on 20 volt AC scale.

^ Run engine and measure voltage between J10 (SPOUT) and J7 (B-).

^ Is voltage between 3.0 and 8.5 volts AC?


YES -- Replace ICM. Remove all test equipment. Reconnect all components. Clear continuous memory. Rerun quick test.



NO -- Go to C4. C4 - Check For Spout Open In Harness