P0320

Tests 1 - 2:

Tests 3 - 6:

Tests 7 - 12:

Tests 13 - 17:

Test 18:

SYMPTOM
P0320 - NO CRANK REFERENCE SIGNAL AT PCM

WHEN MONITORED
With the ignition ON.

SET CONDITION
No signal from the Crankshaft Position Sensor is present during engine cranking, and at least 3 Camshaft Position Sensor signals have occurred.

POSSIBLE CAUSES
- Tone wheel/flexplate damaged
- Irregular lab scope pattern of CKP signal
- Stray signal from the Camshaft Position Sensor
- 5 volt supply circuit open
- 5 volt supply circuit shorted to CKP signal circuit
- CKP signal circuit open
- CKP signal circuit shorted to voltage
- CKP signal circuit shorted to ground
- CKP signal circuit shorted to sensor ground circuit
- Sensor ground circuit open
- Wiring harness intermittent problem
- Powertrain Control Module (CKP signal circuit)
- Powertrain Control Module (sensor ground circuit)
- Crankshaft Position Sensor