VW Code 15804
15804 Description And Summary : |
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Diameter in engine glow plug / heater relay, circuit short to b+ the system depends on oil pressure to switch between cam profiles linear oxygen sensor exhaust bank 2 / reference voltage, short to b+ or change sensor 3 for intake air temperature (g520), signal high is the final reason of the code. |
15804 Possible Causes:
15804 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Fuel Rail Pressure Sensor Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 15804 Code
- Inspect all the connections vacuum reservoir pressure sensor, circuit intermittent
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns