C1493 Vauxhall Astra H OBD Code

OBD/2 C1493 error code description and symptoms.

Throttle Position (TP) Sensor Intermittent The TP sensor circuit is monitored by the PCM for sudden TP rotation angle (or voltage) input change through the comprehensive component monitor (CCM). If during the last 80 warm-up cycles in key ON engine running the PCM detects a TP rotation angle (or voltage) changes beyond the minimum or maximum calibrated limit, a continuous diagnostic trouble code (DTC) is stored. Poor continuity through the TP sensor connectors Poor continuity through the TP harness Intermittent open or short inside the TP sensor While accessing the TP V PID on the scan tool, lightly tap on the TP sensor or wiggle the TP sensor connector and harness.

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.

C1493 Vauxhall Astra H Error Code Repair Process :

If your scp (j1850) invalid or missing data for audio control 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 C1493 and engine control unit are in charge of monitoring a bunch of different scp (j1850) invalid or missing data for audio control, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Vauxhall Astra H C1493 OBD2 Code

A common cause of code C1493 is the failure of SCP (J1850) Invalid or Missing Data for Audio Control, but there are several other possible causes as well, such as ;

Damaged VCT phaser
Faulty Crankshaft Position Sensor (POS)
Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Intake Valve Timing Control Solenoid Valve harness is open or shorted

C1493 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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C1493 Vauxhall Astra H OBD Code

C1493 Vauxhall Astra H Error Code Repair Process :

Common Causes of Vauxhall Astra H C1493 OBD2 Code

C1493 code for other Vauxhall cars