Toyota 2GR-FE Manual page 513

Sensor current detection monitor (High and low side malfunction P2195, P2196, P2197 and
P2198):
Monitor runs whenever following DTCs are not present
Battery voltage
Atmospheric pressure
A/F sensor status
Continuous time of fuel cut
ECT
TYPICAL MALFUNCTION THRESHOLDS
Sensor voltage detection monitor (Lean side malfunction P2195, P2197):
A/F sensor voltage
Sensor voltage detection monitor (Rich side malfunction P2196, P2198):
A/F sensor voltage
Sensor current detection monitor (High side malfunction P2195, P2197):
A/F sensor current
Sensor current detection monitor (Low side malfunction P2196, P2198):
A/F sensor current
MONITOR RESULT
Refer to CHECKING MONITOR STATUS (See page ES-49).
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
P0031, P0032, P0051, P0052 (A/F sensor heater - Sensor 1)
P0037, P0038, P0057, P0058 (HO2 sensor heater - Sensor 2)
P0100 - P0103 (MAF meter)
P0110 - P0113 (IAT sensor)
P0115 - P0118 (ECT sensor)
P0120 - P0223, P2135 (TP sensor)
P0125 (Insufficient ECT for Closed Loop)
P0136, P0156 (O2 Sensor - Sensor 2)
P0171, P0172 (Fuel system)
P0300 - P0308 (Misfire)
P0335 (CKP sensor)
P0340, P0341 (CMP sensor)
P0500 (VSS)
11 V or more
22.5 kPa (570 mmHg) or more
Activated
3 to 10 seconds
75°C (167°F) or more
More than 3.8 V
Less than 2.8 V
3.6 mA or more
Less than 1.4 mA
ES–357
ES