SpareRadar OBD-II Code Lookup

P12A1

Set by the manufacturer, so it means different things on different makes. 2 makes in the table below.

More codes than this one? Paste your whole scan
What P12A1 means, by make 2 makes
  • Audi Fuel Rail Pressure Sensor Inappropriately Low; Pressure control activity; > 0.20 mPa; and; Fuel trim activity < 0.80; Difference between target pressure vs. actual pressure; -16.00 - 16.38 mPa
  • Volkswagen Fuel Rail Pressure Sensor Inappropriately Low; Pressure control activity; > 0.20 mPa; and; Fuel trim activity < 0.80; Difference between target pressure vs. actual pressure; -16.00 - 16.38 mPa

Each line is that manufacturer's own meaning for P12A1. They are genuinely different faults, not rewordings of one, so a meaning listed against one make says nothing about the others. If your make is not listed, we do not hold it - your manufacturer's service information is the authority.

Code structure P12A1
P
Powertrain
engine, transmission and emissions
1
Manufacturer-specific
Defined by the vehicle manufacturer, so the meaning varies between makes.
2
A
1
Fault index
identifies the specific fault
Powertrain Manufacturer-specific
Nearby codes in the P1 range
P129C manufacturer-specific, 3 makes P129D manufacturer-specific, 3 makes P129E manufacturer-specific, 4 makes P12A0 manufacturer-specific, 2 makes P12A2 manufacturer-specific, 2 makes P12A4 manufacturer-specific, 2 makes P12A6 manufacturer-specific, 1 make P1300 manufacturer-specific, 22 makes

Manufacturer code meanings from kierandrewett/obd (b56a07a), used under the MIT licence. Copyright (c) Kieran Drewett. SpareRadar is not affiliated with the dataset's authors.