P0340

Documented for: 2.0D/2.2D; 2.0L gasoline; 2.5L/3.0L gasoline · System(s): EMS/diesel, EMS EOBD, EMS OBD II · Factory MIL flag: 2

Common causes

• Camshaft position sensor
• connector/wiring
• timing/sensor target
• ECM less commonly
• CMP Sensor disconnected CMP Sensor gap incorrect / foreign matter on sensor face CMP Sensor sensing circuit: open circuit, short circuit to ground, short circuit to high voltage CMP Sensor 1 failure
• Camshaft Position Sensor A Circuit (Bank 1 or single sensor)

Quick checks

• Confirm freeze-frame and conditions when the code set
• Inspect connectors, grounds, and harness for the circuit named in the code
• Compare live sensor values vs expected (unplugged/biased sensors are common)

Typical fixes

• Check CMP supply, ground, signal and wiring
• verify cam/crank synchronisation
• replace sensor if proven faulty.
• Inspect CMP sensor
• check timing