P3988 Trouble Code

View P3988 obd/2 error code description and symptoms. P3988 engine photo

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) P3988 DTC is a check of the VCT unit.

To check for an open circuit, trace along the length of the transmission control circuit, checking for breaks in the wiring. Repair any broken wiring and make sure all connectors are fully seated and locked.Pay close attention to connectors, looking for corrosion, bent or broken pins, or moisture in the connector. Repair any connector issues even if they are not specifically part of the transmission control circuit as they may serve a function in providing power to the transmission control circuit.

P3988 Error Code Repair Process :

If your scp (j1850) invalid or missing data for primary id check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P3988 and engine control unit are in charge of monitoring a bunch of different scp (j1850) invalid or missing data for primary id, and if they get a reading that's a little out of whack, up pops the check engine light.

P3988 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.

Common Causes of P3988

A common cause of code P3988 is the failure of SCP (J1850) Invalid or Missing Data for Primary Id, but there are several other possible causes as well, such as ;

Camshaft advance mechanism binding (VCT unit)
Faulty select solenoid
Fuel Injectors circuit poor electrical connection
Faulty oil control valve (OCV)

P3988 code for all cars

You can view according P3988 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+P3988 Mercury Colony

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

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