P0320

Test 1:

Tests 2 - 5:

Tests 6 - 9:

Tests 10 - 13:

Tests 14 - 19:

Tests 20 - 24:

Test 25:

SYMPTOM
P0320 - NO CRANK REFERENCE SIGNAL AT PCM

WHEN MONITORED
During engine cranking.

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
- 8 volt supply circuit open
- 8 volt supply circuit shorted to ground
- 8 volt supply circuit shorted to voltage
- 8 volt supply shorted to sensor ground circuit
- CKP signal circuit shorted to 8 volt supply circuit
- CKP signal circuit shorted to voltage
- Tone wheel/flexplate damaged
- Sensor ground circuit open
- Irregular lab scope pattern of CKP signal
- Stray signal from the camshaft position sensor
- Wiring harness intermittent problem
- CKP signal circuit open
- CKP signal circuit shorted to ground
- CKP signal circuit shorted to sensor ground circuit
- Crankshaft position sensor
- Powertrain control module (8 volt supply)
- Powertrain control module (CKP signal circuit)
- Powertrain control module (sensor ground circuit)