Possible causes – Leaking or stuck open thermostat– Low engine coolant level– Insufficient warm up time– Faulty engine coolant temperature sensor– Engine coolant temperature sensor harness is open or shorted– Engine coolant temperature sensor circuit poor electrical connection Tech notes

Possible causes – Low battery charge– Battery defective– Loose or missing alternator drive belt– Faulty alternator– Open or short system voltage circuit Tech notes Start by recharging or replacing the battery. When is the code detected? The P0560 code is

Possible causes – Low engine coolant level– Faulty Engine Coolant Temperature (ECT) sensor– Faulty engine coolant thermostat– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor circuit poor electrical connection When is the code

Possible causes – Low engine coolant level– Faulty Engine Coolant Temperature (ECT) sensor– Faulty engine coolant thermostat– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor circuit poor electrical connection When is the code

Possible causes – Low engine coolant level– Faulty Engine Coolant Temperature (ECT) sensor– Faulty engine coolant thermostat– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection When is the code

Possible causes – Low engine coolant level– Leaking or stuck open thermostat– Faulty Engine Coolant Temperature (ECT) sensor– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection When is the

Possible causes – Three way catalyst converter Bank 1– Exhaust tube– Intake air leaks– Fuel injectors may be faulty– Fuel injector leaks– Spark plugs may be faulty– Improper ignition timing– Engine Control Module (ECM) Tech notes As the code description

Possible causes – Three way catalyst converter Bank 2– Exhaust tube– Intake air leaks– Fuel injectors may be faulty– Fuel injector leaks– Spark plugs may be faulty– Improper ignition timing– Engine Control Module (ECM) Tech notes As the code description

Possible causes – VVT solenoid valve disconnected– VVT solenoid valve to ECM PWM drive circuit: – Open circuit, short circuit, high resistance– VVT solenoid failure Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Cam timing improperly set– Continuous oil flow to the VCT piston chamber– VCT solenoid valve stuck open– Camshaft advance mechanism binding (VCT unit). Tech notes There is a factory service bulletin for the P1388 code on Jaguar

Possible causes – Cam timing improperly set– Continuous oil flow to the VCT piston chamber– VCT solenoid valve stuck open– Camshaft advance mechanism binding (VCT unit). Tech notes There is a factory service bulletin for the P1383 code on Jaguar

Possible causes – Cam timing improperly set– Continuous oil flow to the VCT piston chamber– VCT solenoid valve stuck open– Camshaft advance mechanism binding (VCT unit). Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1381 JAGUAR Description

Possible causes – Cam timing improperly set– Continuous oil flow to the VCT piston chamber– VCT solenoid valve stuck open– Camshaft advance mechanism binding (VCT unit). Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1386 JAGUAR Description

Possible causes – Faulty Manifold Absolute Pressure (MAP) sensor– Manifold Absolute Pressure (MAP) sensor harness is open or shorted– Manifold Absolute Pressure (MAP) sensor circuit poor electrical connection When is the code detected? If the Powertrain Control Module (PCM) detects

Possible causes – Faulty Manifold Absolute Pressure (MAP) sensor– Manifold Absolute Pressure (MAP) sensor harness is open or shorted– Manifold Absolute Pressure (MAP) sensor circuit poor electrical connection When is the code detected? If the Powertrain Control Module (PCM) detects

Possible causes – Faulty Mass Airflow Sensor (MAF)– Mass Airflow Sensor harness is open or shorted– Mass Airflow Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – The vehicle is new from the factory.– Battery or Powertrain Control Module (PCM) had recently been disconnected.– An OBD monitor failure occurred before completion of an OBD drive cycle.– PCM Detected Trouble Codes (DTC) have recently been

Tech notes Usually the P1111 code means that all systems are OK and that the diagnostic cycle is complete. For some Jaguar models models P1111 = OnBoard Systems Tests Completed Symptoms – Engine Light ON (or Service Engine Soon Warning