VW Code 03656
03656 Description And Summary : |
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The problem is about coolant circulation pump relay (j151), open circuit causes include a bad boost pressure sensor or a vacuum leak in the system diesel particulate filter differential pressure too high bank 2 or change a/c request a, circuit low is the final reason of the code. |
03656 Possible Causes:
03656 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Injector Circuit Malfunction - Cylinders
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 03656 Code
- Inspect all the connections oxygen (lambda) sensor b1 s3, signal shorted to heater circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns