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P0637 Engine Trouble Code

P0637 Engine

When you check engine light came on code P0637 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P0637 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

When your car's 'P0637 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

P0637 Code Meaning :

P 0 6 3 7
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low O2 Sensor Heater Circuit Malfunction Cold Start Injector 1 Malfunction Crankshaft Position Sensor B Circuit Malfunction

The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.

P0637 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0637 engine trouble code is about Crankshaft Position Sensor B Circuit Malfunction.

Reason For P0637 Code

The reason of P0637 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

Parts or components should not be replaced with reference to only a P0637 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.