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TuningBot DTC Database · v4.37.14

P1612 Diagnostic Trouble Code (15 interpretations)

15 manufacturer-specific interpretations across 11 manufacturers in the TuningBot DTC database.

Chevrolet

1 interpretation
P1612
Loss Of IPM Serial Data Chevrolet · engine Data confidence 80%

The control module detected a fault associated with the Loss Of IPM Serial Data circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chevrolet.

Chrysler

1 interpretation
P1612
Throttle position (TP) control module malfunction Chrysler · engine Data confidence 62%

The control module detected improper operation of the Throttle position (TP) control module. This is the manufacturer-specific definition used by Chrysler.

Possible causes

  • Wiring
  • connector
  • throttle position (TP) control module

Dodge

1 interpretation
P1612
Engine control module (ECM) - supply voltage Dodge · battery Data confidence 62%

The control module detected a fault associated with the Engine control module (ECM) - supply voltage circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Dodge.

Possible causes

  • Wiring
  • connector
  • ignition switch

Hyundai

1 interpretation
P1612
Ventilation Solenoid Valve Electrical Hyundai · engine Data confidence 62%

The control module detected a fault associated with the Ventilation Solenoid Valve 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 Hyundai.

Jaguar

1 interpretation
P1612
Throttle Offset Malfunction Jaguar · engine Data confidence 62%

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

Mercedes-Benz

1 interpretation
P1612
IFI Control Module N37 Voltage Circuit 15 Mercedes-Benz · engine Data confidence 62%

The control module detected a fault associated with the IFI Control Module N37 Voltage Circuit 15 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.

Nissan

1 interpretation
P1612
Immobilizer control module/engine control module (ECM) communication - malfunction Nissan · immobilizer Data confidence 62%

The control module detected improper operation of the Immobilizer control module/engine control module (ECM) communication. This is the manufacturer-specific definition used by Nissan.

Possible causes

  • Wiring
  • immobilizer control module
  • ECM

Opel

1 interpretation
P1612
Immobilizer control module - no / incorrect signal Opel · immobilizer Data confidence 62%

The control module detected that the Immobilizer control module - no / state or value did not match what was expected. This is the manufacturer-specific definition used by Opel.

PSA

4 interpretations
P1612
Coded anti-start : Code ADC2 reading or writing error PSA · engine Data confidence 72%

The control module detected the fault condition "Code ADC2 reading or writing error" for the Coded anti-start. Documented for the Bosch EDC16C34 injection ECU (DV6TED4 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

Applies to Peugeot Bosch EDC16C34 injection ECU (DV6TED4 1.6 HDi)
P1612
ECU : Fault internal to the EEPROM (Coded immobiliser) PSA · software Data confidence 72%

The control module detected an internal control-unit fault (Fault internal to the EEPROM (Coded immobiliser)). Documented for the Continental SID 807 injection ECU (DV6C 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

Applies to Peugeot Continental SID 807 injection ECU (DV6C 1.6 HDi)
P1612
ECU : EEPROM internal fault PSA · software Data confidence 72%

The control module detected an internal control-unit fault (EEPROM internal fault). Documented for the Delphi DCM 3.5 injection ECU (DW10C 2.0 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

Applies to Peugeot Delphi DCM 3.5 injection ECU (DW10C 2.0 HDi)
P1612
Coded engine immobiliser generation 2 : Immobiliser write failed PSA · immobilizer Data confidence 72%

The control module detected the fault condition "Immobiliser write failed" for the Coded engine immobiliser generation 2. Documented for the Magneti Marelli MM6KP engine ECU (EW7A/EW10A) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

Applies to Peugeot Magneti Marelli MM6KP engine ECU (EW7A/EW10A)

VAG

2 interpretations
P1612
Engine control module (ECM) - coding VAG · engine Data confidence 62%

The control module detected a fault associated with the Engine control module (ECM) - coding circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Audi.

Possible causes

Incorrectly coded

Applies to Audi
P1612
Engine Control Module Incorrectly Coded VAG · engine Data confidence 80%

The control module detected a fault associated with the Engine Control Module Incorrectly Coded circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 18020. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).

Symptoms

  • Driveability Issues
  • Emissions worse
  • Other Fault Codes stored

Possible causes

  • Engine Control Unit (ECU) incorrectly coded
  • Incorrect Cruise Control Type enabled

Recommended checks

  • Check Engine Control Unit (ECU) coding
  • Check Cruise Control Activation
Applies to Volkswagen

Volvo

1 interpretation
P1612
Electronic throttle system (ETS) - no signal Volvo · engine Data confidence 62%

The control module did not receive the expected Electronic throttle system (ETS) signal. This is the manufacturer-specific definition used by Volvo.

Possible causes

  • Wiring
  • ETS

Related and nearby codes

How to read P1612

P

Powertrain: engine, transmission and driveline systems.

1

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

612

Specific fault index within the subsystem.

Frequently asked questions about P1612

What does P1612 mean?

Diagnostic Trouble Code (15 interpretations). The control module detected a fault associated with the Loss Of IPM Serial Data circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chevrolet.

Is P1612 generic or manufacturer-specific?

P1612 is a manufacturer-specific code. In this database it is documented for: Chevrolet, Chrysler, Dodge, Hyundai, Jaguar, Mercedes-Benz, Nissan, Opel, PSA, VAG, Volvo. The same number can mean something different on other brands.

Can TuningBot remove P1612 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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