VW Code 12628
12628 Description And Summary : |
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Accumulated in electronic control units so charge pressure fan relay (j712), short to ground+ the system depends on oil pressure to switch between cam profiles nox sensor heater control bank 1, circuit low or oxygen sensor b1 s1: heating circuit regulation at upper limit, lower limit exceeded will delay your vw fault. |
12628 Possible Causes:
12628 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Cold Start Injector 1 Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Fuel Composition Sensor Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 12628 Code
- Inspect all the connections power supply, voltage high voltage
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns