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OBDII/EOBD diagnostics trouble codes definition

If your car supports OBD II or EOBD, then you can already use almost 5000 generic OBDII codes. These codes are from PowerTrain series (P0XXX, P2XXX, P34XX), Body Series (B0XXX), Chassis series (C0XXX), Network series (U0XXX, U2XXX, U3XXX).

Also there is a list of more than 13500 additional manufacturer specific codes.

Supported manufacturers with specific OBD2 codes:


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Definition of check engine code P1109:

Citroen/Peugeot

IAT - B Sensor Intermittent

Daewoo

FUEL PUMP - PERFORMANCE

Fiat

Electric fan - assembly 2

Ford

IAT - B Sensor Intermittent

GM

Secondary Port Throttle System

Lincoln

IAT - B Sensor Intermittent

Mercury

IAT - B Sensor Intermittent

Mini

Manifold absolute pressure - too high under deceleration

Oldsmobile

IAT - B Sensor Intermittent

Volkswagen/Audi

O2 Sensor Circ.,Bank2 - Sensor2 Voltage too Low/Air Leak

Volvo

O2 Sensor Circ.,Bank2 - Sensor2 Voltage too Low/Air Leak
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