U3131 Chevrolet Volt OBD Code

OBD/2 U3131 error code description and symptoms.

Brake Switch Circuit Input Malfunction Indicates PCM did not receive a brake pedal position (BPP) input. Open or short in BPP circuit Open or short in stoplamp circuits Damaged PCM Malfunction in module(s) connected to BPP circuit. (Rear Electronic Module [REM] Windstar and LS6/LS8 or Lighting Control Module (LCM) Continental and Town Car. Damaged brake switch Misadjusted brake switch Check for proper function of stoplamps.

Circuit High Input codes like U3131 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.

U3131 Chevrolet Volt Error Code Repair Process :

If your exhaust pressure control valve intermittent 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 U3131 and engine control unit are in charge of monitoring a bunch of different exhaust pressure control valve intermittent, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Chevrolet Volt U3131 OBD2 Code

A common cause of code U3131 is the failure of Exhaust Pressure Control Valve Intermittent, but there are several other possible causes as well, such as ;

Failures of clutch motion/travel sensors.
Faulty starter motor
Intake Valve Timing Control Solenoid Valve circuit poor electrical connection
Faulty Intake Valve Timing Control Solenoid Valve

U3131 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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U3131 Chevrolet Volt OBD Code

U3131 Chevrolet Volt Error Code Repair Process :

Common Causes of Chevrolet Volt U3131 OBD2 Code

U3131 code for other Chevrolet cars