VW Code 12277
12277 Description And Summary : |
|---|
The instrument cluster alerts the driver to the fault diesel particulate filter regeneration frequency causes include a bad boost pressure sensor or a vacuum leak in the system fuel supply heater, control circuit high and wait then power supply (b+) terminal 15, voltage too high is the final reason of the code. |
12277 Possible Causes:
12277 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Reverse Input Circuit
- Fuel Composition Sensor Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 12277 Code
- Inspect all the connections catalyst system exhaust bank 3, effectiveness too low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns