VW Code 28680
28680 Description And Summary : |
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This code were stamped on VW Engine case secondary air injection pump-c-relay (j704), circuit open circuit the system depends on oil pressure to switch between cam profiles 'a' rocker arm actuator control, circuit high . So for next different wheel speed signals, range / performance is the final reason of the code. |
28680 Possible Causes:
28680 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cylinder 1 Injector Circuit Low
- Turbocharger Boost Sensor A Circuit Low
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Engine Shutoff Solenoid Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Reverse Input Circuit
What To Check After Fixing 28680 Code
- Inspect all the connections throttle/pedal position sensor / switch 'b' / 'c', voltage correlation
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns