P0320

Tests 1 - 2:

Tests 3 - 6:

SYMPTOM
P0320 - NO CRANK REFERENCE SIGNAL AT PCM

WHEN MONITORED
Engine running.

SET CONDITION
The Engine speed at PCM is less than 800 rpm, while the RPM at the ECM is greater than 1024 rpm and battery voltage is between 10.5 and 15.0 volts.

POSSIBLE CAUSES
- RPM within 100 rpm of tach
- CKP out to JTEC circuit open
- Powertrain Control Module
- CKP out to JTEC circuit shorted to 12.0 volts
- CKP out to JTEC circuit shorted to ground
- Engine Control Module