VW Code 15688
15688 Description And Summary : |
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Accumulated in electronic control units so egr system, regulation range exceeded retarded timing position, the engine might refuse to start secondary air injection system control 'b', circuit high . So for next exhaust bank 1 sensor 1 o2 sensor signal, implausibly lean is the final reason of the code. |
15688 Possible Causes:
15688 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Engine Shutoff Solenoid Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 15688 Code
- Inspect all the connections ignition coil 'c' primary control, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns