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Definition of check engine code P1191:
Citroen/Peugeot:
Key Line Voltage
Daewoo:
ETS LIMPHOME VALVE ACTIVATE
Ford:
Key Line Voltage
GM:
Intake Air Duct Air Leak
Jaguar:
O2 Sensor Heater Circuit Open - Hardware Fault
Kia:
02 Sensor Heater Circuit Open - Hardware Fault
Land Rover:
Oxygen Sensor Heater Circuit Open Downstream
Lincoln:
Key Line Voltage
Mercedes:
TP (controlled) circuit
Mercury:
Key Line Voltage
Oldsmobile:
Key Line Voltage
Volkswagen/Audi:
Heated oxygen sensor (HO2S) 1,banks 1 & 2 - interchanged
