SpareRadar OBD-II Code Lookup

P1109

Set by the manufacturer, so it means different things on different makes. 12 makes in the table below.

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What P1109 means, by make 12 makes
  • Audi O2 Sensor Circ.,Bank2 - Sensor2 Voltage too Low/Air Leak
  • Chevrolet Secondary Port Throttle System
  • Citroen IAT - B Sensor Intermittent
  • Dodge O2 SENSOR 2-Jan POSITIVE CURRENT CONTROL CIRCUIT OPEN
  • Fiat Electric fan - assembly 2
  • Ford IAT - B Sensor Intermittent
  • Lincoln IAT - B Sensor Intermittent
  • MINI Manifold absolute pressure - too high under deceleration
  • Mercury IAT - B Sensor Intermittent
  • Peugeot IAT - B Sensor Intermittent
  • Volkswagen O2 Sensor Circ.,Bank2 - Sensor2 Voltage too Low/Air Leak
  • Volvo O2 Sensor Circ.,Bank2 - Sensor2 Voltage too Low/Air Leak

Each line is that manufacturer's own meaning for P1109. 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 P1109
P
Powertrain
engine, transmission and emissions
1
Manufacturer-specific
Defined by the vehicle manufacturer, so the meaning varies between makes.
1
0
9
Fault index
identifies the specific fault
Powertrain Manufacturer-specific
Nearby codes in the P1 range
P1104 manufacturer-specific, 14 makes P1105 manufacturer-specific, 21 makes P1106 manufacturer-specific, 21 makes P1108 manufacturer-specific, 17 makes P110A manufacturer-specific, 2 makes P110B manufacturer-specific, 2 makes P110C manufacturer-specific, 2 makes P110D manufacturer-specific, 2 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.