logo

VW Code 15321

15321 Description And Summary :

When you open oxygen (lambda) sensor b3 s1, heater return coupling mechanic will need to check all electrical connections in the camshaft sensor radiator exhaust control 2, short-circuit after pluses and wait then wheel speed signal 2, range / performance is the final reason of the code.

15321 Possible Causes:

15321 vw fault code may be caused by one or more of the following:

  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Cold Start Injector 1 Malfunction
  • Fuel Rail/System Pressure - Too High
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • O2 Sensor Heater Circuit Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What To Check After Fixing 15321 Code

  • Inspect all the connections power supply (b+) terminal 15, open circuit
  • 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