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Home DTC Codes P1112 Medium · 30-60min
P1112 Warning

OBD2 code P1112: Manufacturer specific - Engine sensors

Faulty manufacturer specific sensor.

ECU: ECM

Detected Root Component

Powertrain Component

Confidence level: low

Observed Symptoms

  • Engine light on (MIL/Check Engine)
  • Rough or unstable slow motion
  • Excessive fuel consumption

Possible Causes

  • Defective sensor
  • Damaged wiring
  • Obsolete calibration
Diagnostic Progress 0 %
Difficulty Medium
Est. time 30-60min
Tools Required 4 tool(s)

Tools Required

multimeter OBD scanner wiring diagram oscilloscope (optional)

Interactive Diagnostic

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Diagnostic Result

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certainty points

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Parts likely to be the cause (Moteur (général))

Moteur (général)

Moteur (général)

Photo d'illustration : Moteur (général)

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Frequently asked questions about code P1112

What does code P1112 mean?

OBD2 code P1112: Manufacturer specific - Engine sensors. Faulty manufacturer specific sensor.

What are the symptoms of code P1112?

Code P1112 may cause: Engine light on (MIL/Check Engine), Rough or unstable slow motion, Excessive fuel consumption. The intensity of these symptoms varies depending on the vehicle and driving conditions.

What causes code P1112?

The most common causes of code P1112 are: Defective sensor, Damaged wiring, Obsolete calibration. A proper OBD2 diagnostic will pinpoint the exact cause.

Is it serious to drive with code P1112?

Code P1112 has moderate severity (Warning). Short-term driving remains possible, but a prompt check is recommended to prevent worsening.

How do I fix code P1112?

Start by reading the code with an OBD2 scanner, then follow the interactive decision tree on this page. Priority causes to check: Defective sensor, Damaged wiring, Obsolete calibration. Difficulty: complex · Estimated time: 30-60min.