B3547 Chevrolet Silverado 3 OBD Code

OBD/2 B3547 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.

On some transmissions, such as automated manual transmissions or automatic transmissions with manual mode, the GSP switch lets the TCM know whether or not the driver has selected automatic or manual function. On manual transmissions, the GSP switch informs the TCM which gear the driver is selecting, and may function as a neutral safety switch, depending on system design. The TCM also uses the gate select position switch to monitor transmission operation. For example, if the driver selects manual mode and selects 3rd gear on an automatic transmission, the TCM may monitor speed sensors to detect clutch and brake slippage.

B3547 Chevrolet Silverado 3 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine B3547 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 idm_en circuit failure 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 idm_en circuit failure.

Common Causes of Chevrolet Silverado 3 B3547 OBD2 Code

A common cause of code B3547 is the failure of IDM_EN Circuit Failure, but there are several other possible causes as well, such as ;

Dirty Oil
Engine Control Module (ECM)
Intake Valve Timing Control Solenoid Valve circuit poor electrical connection
Camshaft advance mechanism binding (VCT unit)

B3547 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

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

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B3547 Chevrolet Silverado 3 OBD Code

B3547 Chevrolet Silverado 3 Error Code Repair Process :

Common Causes of Chevrolet Silverado 3 B3547 OBD2 Code

B3547 code for other Chevrolet cars