Malfunction Threshold (Mexico Models)
- Malfunction determination 1 - From start up
The rear A/F sensor (bank 1, sensor 1) internal resistance value [AF SENSOR IMPEDANCE] is 200 Ω or more for at least 90 seconds right after the engine starts.
- Malfunction determination 2 - Hot
The rear A/F sensor (bank 1, sensor 1) internal resistance value [AF SENSOR IMPEDANCE] is 270 Ω or more for at least 1.0 second.