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Home >> Toyota >> 2005 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control System (SFI) (1ZZ-FE (Fwd)) - Diagnostics >> SFI System (1ZZ-FE (Ff)) >> DTC P2195, P2196: Oxygen (A/F) Sensor Signal Stuck Lean/Rich (Bank 1 Sensor 1) >> Typical Enabling Conditions
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Typical Enabling Conditions

All: 

TYPICAL ENABLING CONDITIONS (ALL)

Monitor runs whenever following DTCs not present See LIST OF DISABLE A MONITOR 

P2195 (Lean side malfunction): 

TYPICAL ENABLING CONDITIONS (DTC P2195)

Time while all of following conditions met 2 seconds or more
Rear HO2 sensor voltage 0.1 5V or more
Time after engine start 30 seconds or more
A/F sensor status Activated
Fuel system status Closed-loop
Engine Running

P2196 (Rich side malfunction): 

TYPICAL ENABLING CONDITIONS (DTC P2196)

Time while all of following conditions met 2 seconds or more
Rear HO2 sensor voltage Below 0.85V
Time after engine start 30 seconds or more
A/F sensor status Activated
Fuel system status Closed-loop
Engine Running