C20AF Buick Rendezvous OBD Code

OBD/2 C20AF 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.

Regardless of the design though, the purpose of all clutch actuating systems is to improve the driving experience by removing the need for manual clutch operation by the driver. Computer-controlled clutch actuating systems work particularly well in dual clutch systems where one clutch controls gear changes of even-numbered gear ratios, and a second clutch that controls gear changes of odd-numbered ratios.

C20AF Buick Rendezvous Error Code Repair Process :

If your vehicle failed a C20AF test and the C20AF Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses downstream heated o2 sensors swapped a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look downstream heated o2 sensors swapped: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.

Common Causes of Buick Rendezvous C20AF OBD2 Code

A common cause of code C20AF is the failure of Downstream Heated O2 Sensors Swapped, but there are several other possible causes as well, such as ;

1Camshaft Position Sensor circuit poor electrical connection
Continuous oil flow to the VCT piston chamber
Incorrect fuel filler cap used
Open circuits caused by damage to wiring.

C20AF is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

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

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C20AF Buick Rendezvous OBD Code

C20AF Buick Rendezvous Error Code Repair Process :

Common Causes of Buick Rendezvous C20AF OBD2 Code

C20AF code for other Buick cars