OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Powertrain generic / SAE

P0107

Manifold Absolute Pressure Sensor Low Input

The MAP sensor reports a pressure below the lower threshold the ECU expects at any engine state. Typically indicates a hard electrical fault rather than a slow drift.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number1 / 07

Possible causes

  • Signal wire shorted to ground high
  • MAP sensor failed medium
  • 5V reference voltage missing low

Inspection / repair

  • Difficulty: easy
  • DIY: possible
  • Estimated cost: 40–200 €
  • Estimated time: 0.3–2 h
  • Component: map sensor
  • Component: map sensor wiring
  • MIL / check engine light
  • emissions-relevant
  • drive cycle required

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication