C1203 Toyota 105 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 105 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine C1203 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 c1203 abs outlet valve coil rear circuit open 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 c1203 abs outlet valve coil rear circuit open.

Common Causes of Toyota 105 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
Erratic camshaft position due to low oil pressure
Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Faulty oil control valve (OCV)

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 105 OBD Code

C1203 Toyota 105 Error Code Repair Process :

Common Causes of Toyota 105 C1203 OBD2 Code

C1203 code for other Toyota cars