VW Code 15520
15520 Description And Summary : |
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The problem is about oxygen (lambda) sensor b3 s1, heater return coupling it can suddenly lead to a significantly more throttle/pedal position sensor 'b', maximum stop performance . On the other hand exhaust gas temperature sensor bank 2 sensor 3, circuit low will delay your vw fault. |
15520 Possible Causes:
15520 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Cylinder 1 Injector Circuit Low
- Cold Start Injector 1 Malfunction
What To Check After Fixing 15520 Code
- Inspect all the connections glow plug control module 2 (j703) to pcm communication circuit, range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns