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Home DTC Codes P1002 Medium · 45-60min
P1002 Warning

OBD2 code P1002: Manufacturer specific - Engine system

Manufacturer specific code.

ECU: ECM

Detected Root Component

Powertrain Component

Confidence level: low

Observed Symptoms

  • Engine light on (MIL/Check Engine)
  • Loss of engine power

Possible Causes

  • Defective sensor
  • Damaged wiring
  • Faulty engine computer (ECU)
  • Obsolete calibration
Diagnostic Progress 0 %
Difficulty Medium
Est. time 45-60min
Tools Required 7 tool(s)

Tools Required

multimeter OBD scanner with live data wiring diagram oscilloscope (optional) test light relay puller jumper wires

Interactive Diagnostic

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Diagnostic Result

0
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 P1002

What does code P1002 mean?

OBD2 code P1002: Manufacturer specific - Engine system. Manufacturer specific code.

What are the symptoms of code P1002?

Code P1002 may cause: Engine light on (MIL/Check Engine), Loss of engine power. The intensity of these symptoms varies depending on the vehicle and driving conditions.

What causes code P1002?

The most common causes of code P1002 are: Defective sensor, Damaged wiring, Faulty engine computer (ECU), Obsolete calibration. A proper OBD2 diagnostic will pinpoint the exact cause.

Is it serious to drive with code P1002?

Code P1002 has moderate severity (Warning). Short-term driving remains possible, but a prompt check is recommended to prevent worsening.

How do I fix code P1002?

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, Faulty engine computer (ECU), Obsolete calibration. Difficulty: complex · Estimated time: 45-60min.