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Home DTC Codes P1135 Medium · 30-60min
P1135 Warning

OBD2 code P1135: 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 test light

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Diagnostic Result

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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 P1135

What does code P1135 mean?

OBD2 code P1135: Manufacturer specific - Engine sensors. Faulty manufacturer specific sensor.

What are the symptoms of code P1135?

Code P1135 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 P1135?

The most common causes of code P1135 are: Defective sensor, Damaged wiring, Obsolete calibration. A proper OBD2 diagnostic will pinpoint the exact cause.

Is it serious to drive with code P1135?

Code P1135 has moderate severity (Warning). Short-term driving remains possible, but a prompt check is recommended to prevent worsening.

How do I fix code P1135?

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: moderate · Estimated time: 30-60min.