P1108

DTC's P1107/17515 and P1108/17516

Notes:
^ B1 = Bank 1 (right side), S1 = Sensor 1 (front HO2S), B2 = Bank 2 (left side), S2 = Sensor 2 (rear HO2S).

^ O2S heater Z28 is switched ON immediately at engine start via the fuel pump relay.

^ DTC P1107/17515 is set after engine start if the O2S heater current is greater than 10A for more than 80ms or greater than 4A for more than 1 second with battery voltage between 9-16 volts.

^ DTC P1108/17516 is set when the difference between min. and max. H025 signal voltage is less than 500 mV, 60 seconds after start of HO2S control with engine coolant temperature over 80°C (176°F).

^ If DTC P1108/17516 is stored, DTC P0150/16534 is also stored at the same time. Ignore DTC P1108/17516, see table for DTC P0150/16534.