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TuningBot DTC Database · v4.37.15

P1902 VAG - Engine coolant blower motor run - on relay - open circuit/short to ground

Manufacturer-specific interpretation for VAG. All interpretations of P1902

P · PowertrainClimate_controlOBD2

What P1902 means

P1902
Engine coolant blower motor run - on relay - open circuit/short to ground VAG · climate_control Data confidence 62%

The control module detected an interruption (open circuit) in the Engine coolant blower motor run - on relay circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Wiring open circuit/short to ground
  • engine coolant blower motor run - on relay
Applies to Audi
P1902
Engine coolant blower motor run - on relay - open circuit/short to ground VAG · climate_control Data confidence 62%

The control module detected an interruption (open circuit) in the Engine coolant blower motor run - on relay circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Volkswagen.

Possible causes

  • Wiring open circuit/short to ground
  • engine coolant blower motor run - on relay
Applies to Volkswagen

Related and nearby codes

How to read P1902

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

902

Specific fault index within the subsystem.

Frequently asked questions about P1902

What does P1902 mean?

Engine coolant blower motor run - on relay - open circuit/short to ground. The control module detected an interruption (open circuit) in the Engine coolant blower motor run - on relay circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.

Is P1902 generic or manufacturer-specific?

P1902 is a manufacturer-specific code. In this database it is documented for: VAG. The same number can mean something different on other brands.

Can TuningBot remove P1902 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningStage 1 dyno results for VAG engines See the results →

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