Hours: 07–23 daily
EN
Tune your file

TuningBot DTC Database · v4.37.15

P1546 Diagnostic Trouble Code (6 interpretations)

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

P · PowertrainTransmissionOBD2
Brand pages:ChryslerMINIMitsubishiOpelVAG

Chrysler

1 interpretation
P1546
Air Conditioning (A/C) Clutch Feedback Circuit Low Voltage Chrysler · transmission Data confidence 62%

The control module detected that the signal in the Air Conditioning (A/C) Clutch Feedback circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Chrysler.

Recommended checks

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

MINI

1 interpretation
P1546
Pedal Position Sensor MINI · engine Data confidence 62%

The control module detected a fault associated with the Pedal Position Sensor circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by MINI.

Mitsubishi

1 interpretation
P1546
Radiator outlet engine temperature (ECT) - signal variation Mitsubishi · thermal_management Data confidence 62%

The control module detected a fault associated with the Radiator outlet engine temperature (ECT) - signal variation circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Mitsubishi.

Possible causes

  • Wiring
  • engine coolant radiator
  • ECT sensor
  • ECM

Opel

1 interpretation
P1546
AC compressor clutch, signal - circuit malfunction Opel · transmission Data confidence 62%

The control module detected improper operation of the AC compressor clutch circuit. This is the manufacturer-specific definition used by Opel.

VAG

2 interpretations
P1546
Turbocharger (TC) wastegate regulating valve - short to positive VAG · engine Data confidence 62%

The control module detected a short circuit to battery voltage in the Turbocharger (TC) wastegate regulating valve circuit. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Wiring short to positive
  • TC wastegate regulating valve
Applies to Audi
P1546
Boost Pressure Controle Valve (N75): Short to B+ VAG · engine Data confidence 84%

The control module detected a short circuit to battery voltage in the Boost Pressure Controle Valve (N75) circuit. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17954. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).

Symptoms

  • Irregular behaviour
  • Loss of power
  • Limp mode

Possible causes

  • Wiring and/or connections faulty (short circuit)
  • N75 faulty

Recommended checks

  • Check wiring and connections
  • Check / Replace N75
Applies to Volkswagen

Related and nearby codes

P15 range
P1500P1501P1502P1503P1504P1505P1506P1507P1508P1509P150AP150BP150CP150DP150EP150FP1510P1511

How to read P1546

P

Powertrain: engine, transmission and driveline systems.

1

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

546

Specific fault index within the subsystem.

Frequently asked questions about P1546

What does P1546 mean?

Diagnostic Trouble Code (6 interpretations). The control module detected that the signal in the Air Conditioning (A/C) Clutch Feedback circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Chrysler.

Is P1546 generic or manufacturer-specific?

P1546 is a manufacturer-specific code. In this database it is documented for: Chrysler, MINI, Mitsubishi, Opel, VAG. The same number can mean something different on other brands.

Can TuningBot remove P1546 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

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

← Search the full DTC database