B1643 Renault Fregate OBD Code

OBD/2 B1643 error code description and symptoms.

Intake Manifold Runner Control Malfunction (Stuck Open) The IMRC system is monitored for failure during continuous, key ON engine OFF or key ON engine running self-test. The test fails when the signal on the monitor pin is less than an expected calibrated range at closed throttle. IMRC monitor signal circuit shorted to PWR GND or SIG RTN Damaged IMRC actuator Damaged PCM An IMRCM PID reading approximately near 1 volt at closed throttle may indicate a fault.

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

B1643 Renault Fregate Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine B1643 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 b1643 mirror passenger right 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 b1643 mirror passenger right circuit failure.

Common Causes of Renault Fregate B1643 OBD2 Code

A common cause of code B1643 is the failure of B1643 Mirror Passenger Right Circuit Failure, but there are several other possible causes as well, such as ;

1Camshaft Position Sensor circuit poor electrical connection
Faulty Mass Air Flow (MAF) sensor
Fuel tank leaking
1Camshaft Position Sensor circuit poor electrical connection

B1643 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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B1643 Renault Fregate OBD Code

B1643 Renault Fregate Error Code Repair Process :

Common Causes of Renault Fregate B1643 OBD2 Code

B1643 code for other Renault cars