Operation CHARM: Car repair manuals for everyone.

JA7 - Check CKP- Bias Fault - CKP Sensor Disconnected - KOEO



- Key Off.

- DVOM on 40 volt DC scale.

- Key On, Engine Off.

- Measure voltage between (+)J48 (CKP+ I) and (-)J7 (B-) at breakout box.

- Is DC voltage between 1.0 and 2.0 volts?

YES -- REPLACE CKP sensor. Short to ground. REMOVE all test equipment. RECONNECT all components. Clear continuous memory. Clearing Diagnostic Trouble Codes

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

NO -- Go to JA8. JA8 - Check For Bias High or Bias Low Fault - Bias Fault