P0340

Test 1:

Tests 2 - 5:

Tests 6 - 9:

Tests 10 - 12:

Tests 13 - 18:

Tests 19 - 22:

SYMPTOM
P0340 - NO CAM SIGNAL AT PCM

WHEN MONITORED
Engine cranking/running.

SET CONDITION
At least 5 seconds have elapsed with Crankshaft Position Sensor signals present but no Camshaft Position Sensor signal.

POSSIBLE CAUSES
- 8 volt supply circuit shorted to voltage
- CMP signal circuit shorted to 8 volt supply circuit
- CMP signal circuit shorted to voltage
- Tone wheel/pulse ring damaged
- Sensor ground circuit open
- Wiring harness intermittent problem
- Stray signal from the crankshaft position sensor
- Irregular labscope pattern of CMP signal
- CMP signal circuit open
- CMP signal circuit shorted to ground
- CMP signal circuit shorted to sensor ground circuit
- 8 volt supply circuit open
- 8 volt supply circuit shorted to ground
- 8 volt supply circuit shorted to sensor ground circuit
- Camshaft position sensor
- Powertrain control module (8 volt supply)
- Powertrain control module (CMP signal circuit)
- Powertrain control module (sensor ground circuit)