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TuningBot DTC Database · v4.37.14

P1259 Diagnostic Trouble Code (3 interpretations)

3 manufacturer-specific interpretations across 2 manufacturers in the TuningBot DTC database.

P · PowertrainEngineOBD2
Brand pages:HondaVAG

Honda

1 interpretation
P1259
VTEC system malfunction Honda · engine Data confidence 80%

The control module detected improper operation of the VTEC system. This is the manufacturer-specific definition used by Honda.

Possible causes

  • Wiring
  • VTEC solenoid/pressure switch
  • ECM programming
  • ECM

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Compare commanded and measured values
  • Check applicable OEM service information

VAG

2 interpretations
P1259
Engine Coolant System Valve Short To Ground VAG · engine Data confidence 62%

The control module detected a short circuit to ground in the Engine Coolant System Valve circuit. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Wiring short to ground
  • valve

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Compare commanded and measured values
  • Check applicable OEM service information
Applies to Audi
P1259
Engine Coolant System Valve Short To Ground VAG · engine Data confidence 80%

The control module detected a short circuit to ground in the Engine Coolant System Valve circuit. This is the manufacturer-specific definition used by Volkswagen.

Applies to Volkswagen

Related and nearby codes

How to read P1259

P

Powertrain: engine, transmission and driveline systems.

1

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

259

Specific fault index within the subsystem.

Frequently asked questions about P1259

What does P1259 mean?

Diagnostic Trouble Code (3 interpretations). The control module detected improper operation of the VTEC system. This is the manufacturer-specific definition used by Honda.

Is P1259 generic or manufacturer-specific?

P1259 is a manufacturer-specific code. In this database it is documented for: Honda, VAG. The same number can mean something different on other brands.

Can TuningBot remove P1259 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

ECU tuningDyno-tested results by model and engine See the results →

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