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TuningBot DTC Database · v4.37.14

P1479 Diagnostic Trouble Code (8 interpretations)

8 manufacturer-specific interpretations across 7 manufacturers in the TuningBot DTC database.

P · PowertrainEngineOBD2
Brand pages:BMWChryslerFordJeepMazdaMINIVAG

BMW

1 interpretation
P1479
Accelerator pedal position (APP) sensor, supply voltage 1 - electrical fault BMW · engine Data confidence 62%

The control module detected an electrical fault in the Accelerator pedal position (APP) sensor, supply voltage 1 circuit. This is the manufacturer-specific definition used by BMW.

Possible causes

  • Wiring short to ground
  • voltage regulator
  • main relay
  • ECM

Chrysler

1 interpretation
P1479
Transmission cooling fan relay - circuit malfunction Chrysler · thermal_management Data confidence 62%

The control module detected improper operation of the Transmission cooling fan relay circuit. This is the manufacturer-specific definition used by Chrysler.

Possible causes

  • Wiring
  • transmission fluid level low
  • transmission cooling fan
  • transmission cooling fan relay

Ford

1 interpretation
P1479
High Fan Control Primary Circuit Ford · engine Data confidence 80%

The control module detected improper operation of the High Fan Control Primary circuit. This is the manufacturer-specific definition used by Ford.

Possible causes

  • Wiring
  • engine coolant blower motor relay
  • ECM

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Inspect relevant wiring and connectors
  • Check power supplies and grounds
  • Compare commanded and measured values
  • Check applicable OEM service information

Jeep

1 interpretation
P1479
Transmission Fan Relay Circuit Open Or Shorted Jeep · engine Data confidence 62%

The control module detected an interruption (open circuit) in the Transmission Fan Relay circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Jeep.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Confirm the exact vehicle, ECU and software context
  • Inspect relevant wiring and connectors
  • Check applicable OEM service information

Mazda

1 interpretation
P1479
Cooling fan “high” (Tribute) - circuit malfunction Mazda · thermal_management Data confidence 62%

The control module detected improper operation of the Cooling fan “high” (Tribute) circuit. This is the manufacturer-specific definition used by Mazda.

Possible causes

  • Wiring
  • cooling fan relay
  • cooling fan
  • ECM

MINI

1 interpretation
P1479
Brake Boost Vacuum System Mechanical Failure MINI · engine Data confidence 62%

The control module detected improper operation of the Brake Boost Vacuum System Mechanical circuit. This is the manufacturer-specific definition used by MINI.

VAG

2 interpretations
P1479
Vacuum system, brakes - mechanical fault VAG · engine Data confidence 62%

The control module registered the fault condition described as "Vacuum system, brakes - mechanical fault". This is the manufacturer-specific definition used by Audi.

Possible causes

Vacuum pump

Applies to Audi
P1479
Brake Boost Vacuum System: Mechanical Failure VAG · engine Data confidence 80%

The control module detected improper operation of the Brake Boost Vacuum System: Mechanical circuit. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17887. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).

Possible causes

  • Fuse(s) faulty
  • Hoses from/to Brake Boost Vacuum Pump faulty
  • Brake Boost Vacuum Pump faulty

Recommended checks

  • Check / replace fuses
  • Check Hoses from/to Brake Boost Vacuum Pump
  • Check Brake Boost Vacuum Pump
Applies to Volkswagen

Related and nearby codes

P14 range
P1400P1401P1402P1403P1404P1405P1406P1407P1408P1409P140AP140CP140EP1410P1411P1412P1413P1414

How to read P1479

P

Powertrain: engine, transmission and driveline systems.

1

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

479

Specific fault index within the subsystem.

Frequently asked questions about P1479

What does P1479 mean?

Diagnostic Trouble Code (8 interpretations). The control module detected an electrical fault in the Accelerator pedal position (APP) sensor, supply voltage 1 circuit. This is the manufacturer-specific definition used by BMW.

Is P1479 generic or manufacturer-specific?

P1479 is a manufacturer-specific code. In this database it is documented for: BMW, Chrysler, Ford, Jeep, Mazda, MINI, VAG. The same number can mean something different on other brands.

Can TuningBot remove P1479 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

Stage 1/2/3 TuningDPF RemovalEGR RemovalAdBlue / SCR RemovalDTC RemovalIMMO OFFSpeed Limiter (Vmax)

Understand the system behind this code: Diagnostic Strategy and DTC Logic

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