U20A4 Opel P 1200 OBD Code

OBD/2 U20A4 error code description and symptoms.

Engine Coolant Temperature (ECT) Circuit High Input Indicates the sensor signal is greater than Self-Test maximum. The ECT sensor maximum is 4.6 volts or -50 C (-58 F). Note on some vehicles that are not equipped with an ECT sensor, CHT can be used and can set this DTC. Open circuit in harness Sensor signal short to power Damaged PCM Improper harness connection Damaged sensor ECT V PID reading greater than 4.6 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code U20A4, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code U20A4 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

U20A4 Opel P 1200 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine U20A4 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 air bag driver circuit open - loop #2 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 air bag driver circuit open - loop #2.

Common Causes of Opel P 1200 U20A4 OBD2 Code

A common cause of code U20A4 is the failure of Air Bag Driver Circuit Open - Loop #2, but there are several other possible causes as well, such as ;

Engine Control Module (ECM)
Damaged camshaft position (CMP) sensor
Faulty ignition coil (s)
Camshaft advance mechanism binding (VCT unit)

U20A4 is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

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

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U20A4 Opel P 1200 OBD Code

U20A4 Opel P 1200 Error Code Repair Process :

Common Causes of Opel P 1200 U20A4 OBD2 Code

U20A4 code for other Opel cars