C1203 Toyota Sequoia OBD Code

OBD/2 C1203 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.

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

C1203 Toyota Sequoia Error Code Repair Process :

If your c1203 abs outlet valve coil rear circuit open 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 C1203 and engine control unit are in charge of monitoring a bunch of different c1203 abs outlet valve coil rear circuit open, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Toyota Sequoia C1203 OBD2 Code

A common cause of code C1203 is the failure of C1203 ABS Outlet Valve Coil Rear Circuit Open, but there are several other possible causes as well, such as ;

1Camshaft Position Sensor circuit poor electrical connection
1Camshaft Position Sensor circuit poor electrical connection
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
Variable Valve Timing (VVT) circuit is open or shorted

C1203 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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C1203 Toyota Sequoia OBD Code

C1203 Toyota Sequoia Error Code Repair Process :

Common Causes of Toyota Sequoia C1203 OBD2 Code

C1203 code for other Toyota cars