JC59 - Check For C1 Short Low - ICM and Coil Disconnected

- Key Off.

- Disconnect ICM from vehicle harness.

- DVOM on 20K ohm scale.

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

- Is resistance reading greater than 10K ohms?

YES -- REPLACE ICM. C1 is shorted low. REMOVE all test equipment. RECONNECT all components. Clear continuous memory. Clearing Diagnostic Trouble Codes

Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes

NO -- CHECK connectors, SERVICE or REPLACE harness. C1 is shorted to low. REMOVE all test equipment. RECONNECT all components. Clear continuous memory. Clearing Diagnostic Trouble Codes

Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes