P1937 Fiat Brevetti OBD Code

OBD/2 P1937 error code description and symptoms.

Catalytic converters must be warm before they can work properly. On a cold start the PCM provides a rich mixture to keep the cold engine running.
All that extra fuel goes into the catalytic converter. But the exhaust isn't very hot, because, ah, the engine is pretty cold. GM has employed several strategies to fire up the catalytic converter quicker and reduce cold start emissions. One way is to use a secondary air pump that pumps outside air directly into the catalytic converter.

In most cases, the TCM is integrated into a single housing with the PCM. Nevertheless, the section of the module which controls (automatic) transmission function may be powered up separately. In any case, the TCM is typically powered using switched (only present with the ignition switch in the ON, start, or run position) voltage. This circuit is normally equipped with a fuse, fusible link, and/or a relay. Frequently, the PCM and TCM are powered using the same relay albeit by separate circuits. Access to a reliable vehicle information source will yield necessary details of the TCM power circuit for the specific vehicle in question.

P1937 Fiat Brevetti Error Code Repair Process :

If your knock sensor 2 circuit high input (bank 2) 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 P1937 and engine control unit are in charge of monitoring a bunch of different knock sensor 2 circuit high input (bank 2), and if they get a reading that's a little out of whack, up pops the check engine light.

Difficulty Level (Soso)
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Repair Time (30 Min.)
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Cost Prediction : $ 80-120

Common Causes of Fiat Brevetti P1937 OBD2 Code

A common cause of code P1937 is the failure of Knock Sensor 2 Circuit High Input (Bank 2), but there are several other possible causes as well, such as ;
Wrench Tool P1937 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.

P1937 code for other Fiat cars

You can view according P1937 DTC for your car model. We selected several models to see obd2 solutions click and view it.

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

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