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TuningBot DTC Database · v4.37.14

P1551 Diagnostic Trouble Code (13 interpretations)

13 manufacturer-specific interpretations across 12 manufacturers in the TuningBot DTC database.

Chevrolet

1 interpretation
P1551
Throttle valve - rest position incorrect Chevrolet · engine Data confidence 62%

The control module detected that the Throttle valve - rest position state or value did not match what was expected. This is the manufacturer-specific definition used by Chevrolet.

Possible causes

  • Wiring
  • throttle body mechanical fault
  • throttle body
  • ECM

Land Rover

1 interpretation
P1551
Idle air control (IAC) valve closing coil - circuit malfunction Land Rover · engine Data confidence 62%

The control module detected improper operation of the Idle air control (IAC) valve closing coil circuit. This is the manufacturer-specific definition used by Land Rover.

Possible causes

  • Wiring
  • lAC valve

Lexus

1 interpretation
P1551
Battery Current Sensor Circuit Low Input Lexus · engine Data confidence 62%

The control module detected that the signal in the Battery Current circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Lexus.

Mercedes-Benz

1 interpretation
P1551
AIC compressor clutch cut - off Mercedes-Benz · transmission Data confidence 62%

The control module detected a fault associated with the AIC compressor clutch cut - off circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Mercedes-Benz.

Possible causes

  • Wiring
  • incorrect AIC control module
  • ECM

MINI

1 interpretation
P1551
Camshaft Position Actuator 'A' Control Open Circuit Bank 1 MINI · engine Data confidence 62%

The control module detected an interruption (open circuit) in the Camshaft Position Actuator 'A' Control circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by MINI.

Nissan

1 interpretation
P1551
Electrical load sensor, circuit low - circuit malfunction Nissan · engine Data confidence 62%

The control module detected that the signal in the Electrical load circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Nissan.

Possible causes

  • Wiring
  • electrical load sensor
  • ECM

Opel

1 interpretation
P1551
Electronic throttle system (ETS), engine torque monitoring continuously above limit Opel · engine Data confidence 62%

The control module detected a fault associated with the Electronic throttle system (ETS), engine torque monitoring continuously above limit circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Opel.

Porsche

1 interpretation
P1551
Idle Air Control Valve Porsche · engine Data confidence 62%

The control module detected a fault associated with the Idle Air Control Valve circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Porsche.

Suzuki

1 interpretation
P1551
Throttle valve - rest position - not reached Suzuki · engine Data confidence 62%

The control module detected a fault associated with the Throttle valve - rest position - not reached circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Suzuki.

Possible causes

  • Mechanical fault
  • throttle actuator control (TAC) motor
  • throttle position sensor (TPS)

Toyota

1 interpretation
P1551
Battery Current Sensor Circuit Low Input Toyota · engine Data confidence 62%

The control module detected that the signal in the Battery Current circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Toyota.

VAG

2 interpretations
P1551
Barometric Pressure Sensor Circuit Short to B+ VAG · engine Data confidence 62%

The control module detected a short circuit to battery voltage in the Barometric Pressure Sensor circuit. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Wiring
  • BARO sensor
Applies to Audi
P1551
Barometric Pressure Sensor Circuit Short to B+ VAG · engine Data confidence 80%

The control module detected a short circuit to battery voltage in the Barometric Pressure Sensor circuit. This is the manufacturer-specific definition used by Volkswagen.

Applies to Volkswagen

Volvo

1 interpretation
P1551
Vehicle speed, serial communication - implausible signal Volvo · engine Data confidence 62%

The control module judged the Vehicle speed, serial communication signal implausible when compared with other operating data. This is the manufacturer-specific definition used by Volvo.

Possible causes

  • ABS trouble code(s) stored
  • CAN data bus
  • ABS control module
  • ECM

Related and nearby codes

How to read P1551

P

Powertrain: engine, transmission and driveline systems.

1

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

551

Specific fault index within the subsystem.

Frequently asked questions about P1551

What does P1551 mean?

Diagnostic Trouble Code (13 interpretations). The control module detected that the Throttle valve - rest position state or value did not match what was expected. This is the manufacturer-specific definition used by Chevrolet.

Is P1551 generic or manufacturer-specific?

P1551 is a manufacturer-specific code. In this database it is documented for: Chevrolet, Land Rover, Lexus, Mercedes-Benz, MINI, Nissan, Opel, Porsche, Suzuki, Toyota, VAG, Volvo. The same number can mean something different on other brands.

Can TuningBot remove P1551 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

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