P3639 Jaguar Xjr OBD Code

OBD/2 P3639 error code description and symptoms.

Variable Cam Timing Over-advanced (Bank 1) The comprehensive component monitor (CCM) monitors the VCT position for an over-advanced camshaft timing.
The test fails when the camshaft timing exceeds a maximum calibrated value or remains in an advanced position. Cam timing improperly set No oil flow to the VCT piston chamber Low oil pressure VCT solenoid valve stuck closed Camshaft advance mechanism binding (VCT unit) P3639 DTC is a check of the VCT unit.

Circuit High Input codes like P3639 are mostly caused by defective alternators that develop excessive voltages, although there may be other causes as well, such as short circuits that 'leak' current into a particular system from other, unrelated systems that work on higher voltages. Note that in the case of short circuits that leak power into a control circuit, there is likely to be other, seemingly unrelated trouble codes present along with the code(s) being investigated. Diagnosing a 'high input' code will always involve a thorough testing of the charging system as a first step, followed by measures to isolate the system from all other possible sources of power during resistance, continuity, and reference voltage tests.

P3639 Jaguar Xjr Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P3639 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If traction control valve rear circuit short to battery so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the traction control valve rear circuit short to battery.

Common Causes of Jaguar Xjr P3639 OBD2 Code

A common cause of code P3639 is the failure of Traction Control Valve Rear Circuit Short To Battery, but there are several other possible causes as well, such as ;

Camshaft advance mechanism binding (VCT unit)
Faulty Crankshaft Position Sensor (POS)
Fuel injectors may be faulty
Variable Camshaft Timing (VCT) position circuit poor electrical connection

P3639 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

About Us | Contact | Privacy

P3639 Jaguar Xjr OBD Code

P3639 Jaguar Xjr Error Code Repair Process :

Common Causes of Jaguar Xjr P3639 OBD2 Code

P3639 code for other Jaguar cars