JA39 - Check CKP Sensor For Short High - Bias High Fault

- Key Off.

- Disconnect ICM from ICM tee. Leave EI diagnostic harness connected to vehicle harness connector.

- DVOM on 40 volt DC scale.

- Key On, Engine Off.

- Measure voltage between (+)J47 (CKP-I) and (-)J7 (B-) at the breakout box.

- Is DC voltage less than 0.5 volts?

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

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