Toyota 2GR-FE Manual page 340

ES–184
Engine rpm
A/F sensor status
Fuel system status
Fuel-cut
Engine load
Shift position
HO2S low impedance (P0136, P0156):
Battery voltage
Estimated rear HO2S temperature
ECM monitor
P0606
HO2S high impedance (P0137, P0157):
Battery voltage
ES
Estimated rear HO2S temperature
P0606
HO2S high voltage (Extremely high) (P0138, P0158):
Battery voltage
Time after engine start
TYPICAL MALFUNCTION THRESHOLDS
HO2S voltage (P0136, P0156):
Either of the following conditions 1 or 2 is met:
1. All of the following conditions (a), (b) and (c) are met:
(a) Commanded air-fuel ratio
(b) Rear HO2S voltage
(c) OSC (Oxygen capacity of catalyst)
2. All of the following conditions (d), (e) and (f) are met:
(d) Commanded air-fuel ratio
(e) Rear HO2S voltage
(f) OSC (Oxygen capacity of catalyst)
HO2S low impedance (P0136, P0156):
Duration that following condition is met:
Rear HO2S impedance
HO2S high impedance (P0137, P0157):
Duration that following condition is met:
Rear HO2S impedance
HO2S low voltage (P0137, P0157):
All of the following conditions 1, 2 and 3 are met:
1. Commanded air-fuel ratio
2. Rear HO2S voltage
3. OSC (Oxygen capacity of catalyst)
HO2S high voltage (P0138, P0158):
All of the following conditions 1, 2 and 3 are met:
1. Commanded air-fuel ratio
2. Rear HO2S voltage
3. OSC (Oxygen capacity of catalyst)
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
Less than 3,200 rpm
Activated
Closed loop
OFF
10 to 70%
4th or more
11 V or more
Less than 700°C (1,292°F)
Completed
Not set
11 V or more
450°C (842°F) or more
Not preset
11 V or more
2 seconds or more
-
-
14.3 or less
0.21 to 0.59 V
2 g or more
-
14.9 or more
0.21 to 0.59 V
2 g or more
30 seconds or more
Less than 5 Ω
90 seconds or more
15 kΩ or more
-
14.3 or less
Less than 0.21 V
2 g or more
-
14.9 or more
More than 0.59 V
2 g or more