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TuningBot DTC Database · v4.37.15

P1734 Diagnostic Trouble Code (5 interpretations)

5 manufacturer-specific interpretations across 5 manufacturers in the TuningBot DTC database.

P · PowertrainTransmissionOBD2
Brand pages:BMWHondaHyundaiJaguarPSA

BMW

1 interpretation
P1734
Pressure Control Solenoid B Electrical BMW · transmission Data confidence 62%

The control module detected a fault associated with the Pressure Control Solenoid B Electrical circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by BMW.

Recommended checks

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

Honda

1 interpretation
P1734
AT - gear shift malfunction Honda · engine Data confidence 62%

The control module detected improper operation of the AT - gear shift. This is the manufacturer-specific definition used by Honda.

Possible causes

  • Transmission fluid
  • wiring
  • shift solenoid 8/C
  • ECM

Hyundai

1 interpretation
P1734
Vehicle Speed Sensor Reference Voltage Low Hyundai · engine Data confidence 62%

The control module detected that the Vehicle Speed Sensor Reference voltage stayed below the expected range. This is the manufacturer-specific definition used by Hyundai.

Jaguar

1 interpretation
P1734
Gear Control Malfunction Jaguar · engine Data confidence 62%

The control module detected improper operation of the Gear Control. This is the manufacturer-specific definition used by Jaguar.

PSA

1 interpretation
P1734
Gearbox actuator position in gear selection shaft signal fault : Short circuit to earth PSA · transmission Data confidence 72%

The control module detected a short circuit to ground in the Gearbox actuator position in gear selection shaft signal fault circuit. Documented for the MCP 6-speed piloted manual gearbox ECU on Peugeot applications; the same PSA control units are also fitted to Citroën models.

Applies to Peugeot MCP 6-speed piloted manual gearbox ECU

Related and nearby codes

P17 range
P1700P1701P1702P1703P1704P1705P1706P1707P1708P1709P170AP1710P1711P1712P1713P1714P1715P1716

How to read P1734

P

Powertrain: engine, transmission and driveline systems.

1

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

734

Specific fault index within the subsystem.

Frequently asked questions about P1734

What does P1734 mean?

Diagnostic Trouble Code (5 interpretations). The control module detected a fault associated with the Pressure Control Solenoid B Electrical circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by BMW.

Is P1734 generic or manufacturer-specific?

P1734 is a manufacturer-specific code. In this database it is documented for: BMW, Honda, Hyundai, Jaguar, PSA. The same number can mean something different on other brands.

Can TuningBot remove P1734 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

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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