C1988 Trouble Code

View C1988 obd/2 error code description and symptoms. C1988 engine photo

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.

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.

C1988 Error Code Repair Process :

If your engine oil pressure sensor/switch circuit malfunction 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 C1988 and engine control unit are in charge of monitoring a bunch of different engine oil pressure sensor/switch circuit malfunction, and if they get a reading that's a little out of whack, up pops the check engine light.

C1988 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.

Common Causes of C1988

A common cause of code C1988 is the failure of Engine Oil Pressure Sensor/Switch Circuit Malfunction, 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 injectors may be faulty
Insufficient cylinders compression

C1988 code for all cars

You can view according C1988 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C1988 Volkswagen 1303

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