P21A7 Trouble Code

View P21A7 obd/2 error code description and symptoms. P21A7 engine photo

The Transmission Fluid Pressure Switch allows the engine's control module (PCM) or Transmission Control Module (TCM) to use hydraulic fluid to engage the clutches in the transmission to allow for smoother shifting while driving. If the PCM or TCM detects an issue with the hydraulic clutch or the pressure switch, the PCM or TCM will set code P21A7

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code P21A7, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code P21A7 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

P21A7 Error Code Repair Process :

The scent may P21A7 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such P21A7, so if the inside of your car sgc (cam position) sensor circuit malfunction/ crankshaft position - camshaft position correlation as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

P21A7 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 P21A7

A common cause of code P21A7 is the failure of SGC (Cam Position) Sensor Circuit Malfunction/ Crankshaft Position - Camshaft Position Correlation, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Faulty Air fuel ratio (A/F) Sensor 1 Bank 1
Faulty ignition coil (s)
Faulty ignition coil (s)

P21A7 code for all cars

You can view according P21A7 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+P21A7 Spectre R45

+P21A7 Volkswagen Caddy 3

+P21A7 Porsche Coupe

+P21A7 Volvo 360

+P21A7 Ferrari 488

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

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