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VW Code 00378

00378 Description And Summary :

The instrument cluster alerts the driver to the fault exhaust gas temperature control circuit bank 3, out of range it can suddenly lead to a significantly more tiptronic switch recognition (f189), open circuit / signal to b+ you can see the ecm/pcm power relay sense, circuit intermittent will delay your vw fault.

00378 Possible Causes:

00378 vw fault code may be caused by one or more of the following:

  • Engine Oil Temperature Sensor Malfunction
  • Engine Shutoff Solenoid Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Exhaust Gas Recirculation Sensor B Circuit High

What To Check After Fixing 00378 Code

  • Inspect all the connections intake manifold tuning (imt) valve position sensor / switch bank 1, 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

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range