C2789 Citroen Sm OBD Code

OBD/2 C2789 error code description and symptoms.

Vehicle Speed Sensor (VSS) Intermittent Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). This DTC is set the same way as C2789. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for C2789

Circuit High Input codes like C2789 are mostly caused by defective alternators that develop excessive voltages, although there may be other causes as well, such as short circuits that 'leak' current into a particular system from other, unrelated systems that work on higher voltages. Note that in the case of short circuits that leak power into a control circuit, there is likely to be other, seemingly unrelated trouble codes present along with the code(s) being investigated. Diagnosing a 'high input' code will always involve a thorough testing of the charging system as a first step, followed by measures to isolate the system from all other possible sources of power during resistance, continuity, and reference voltage tests.

C2789 Citroen Sm Error Code Repair Process :

If your wiper washer fluid level sensor circuit short to ground 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 C2789 and engine control unit are in charge of monitoring a bunch of different wiper washer fluid level sensor circuit short to ground, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Citroen Sm C2789 OBD2 Code

A common cause of code C2789 is the failure of Wiper Washer Fluid Level Sensor Circuit Short To Ground, but there are several other possible causes as well, such as ;

EVAP system hose leaking
Continuous oil flow to the VCT piston chamber
Camshaft advance mechanism binding (VCT unit)
Spark plugs may be faulty

C2789 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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C2789 Citroen Sm OBD Code

C2789 Citroen Sm Error Code Repair Process :

Common Causes of Citroen Sm C2789 OBD2 Code

C2789 code for other Citroen cars