C3904 Trouble Code

View C3904 obd/2 error code description and symptoms. C3904 engine photo

Mass Air Flow (MAF) Sensor Intermittent The MAF sensor circuit is monitored by the PCM for sudden voltage (or air flow) input change through the comprehensive component monitor (CCM). If during the last 40 warm-up cycles in key ON engine running the PCM detects a voltage (or air flow) change beyond the minimum or maximum calibrated limit, a continuous memory diagnostic trouble code (DTC) is stored.

Circuit High Input codes like C3904 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.

Difficulty Level (Easy)
Level
Repair Time (45 Min.)
Time
Cost Prediction : $ 80-120

C3904 Error Code Repair Process :

If your air suspension rr corner up timeout 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 C3904 and engine control unit are in charge of monitoring a bunch of different air suspension rr corner up timeout, and if they get a reading that's a little out of whack, up pops the check engine light.

Wrench Tool C3904 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 C3904

A common cause of code C3904 is the failure of Air Suspension RR Corner Up Timeout, but there are several other possible causes as well, such as ;

C3904 code for all cars

You can view according C3904 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C3904 Mercedes B 180 +C3904 Acura Arta +C3904 Toyota Aa +C3904 Chrysler Cirrus +C3904 Toyota Paseo

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

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