Toyota 2GR-FE Manual page 547

2. Turn the ignition switch on (IG).
3. Turn the tester on.
4. Clear the DTCs (where set).
5. Select the following menu items: DIAGNOSIS /ENHANCED OBD II / MONITOR INFO / MONITOR
RESULT.
6. Check that RES RATE B1S1 is INCOMP.
7. Start the engine and warm it up (Procedure "A").
8. Drive the vehicle at between 25 mph and 75 mph (40 km/h and 120 km/h) for 3 minutes. However, the
vehicle should be driven at a constant speed (Procedure "B").
9. Check the monitor result values on the intelligent tester by selecting the following menu items:
DIAGNOSIS / ENHANCED OBD II / MONITOR INFO / TEST RESULT.
10.If the values indicated on the tester do not change, perform READINESS MONITOR DRIVE PATTERN
for the A/F sensor and the heated oxygen sensor (See page ES-338).
HINT:
Completion of all A/F sensor monitors is required to change the value in TEST RESULT.
11.Note the value of the Monitor Result.
12.Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / PENDING CODES.
13.Check if any DTCs (any pending DTCs) are set.
MONITOR STRATEGY
Related DTCs
Required Sensors/Components (Main)
Required Sensors/Components (Related)
Frequency of Operation
Duration
MIL Operation
Sequence of Operation
TYPICAL ENABLING CONDITIONS
Monitor runs whenever following DTCs are not present
Battery voltage
ECT
Idle
Engine rpm
A/F sensor status
Fuel-cut
Engine load
Shift position
Catalyst monitor
MAF
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
P2A00: A/F sensor (Bank 1) slow response
P2A03: A/F sensor (Bank 2) slow response
A/F sensor
Vehicle speed sensor, Crankshaft position sensor
Once per driving cycle
10 to 15 seconds
2 driving cycles
None
P0031, P0032, P0051, P0052 (A/F sensor heater - Sensor 1)
P0100 - P0103 (MAF meter)
P0110 - P0113 (IAT sensor)
P0115 - P0118 (ECT sensor)
P0120 - P0223, P2135 (TP sensor)
P0125 (Insufficient ECT for Closed Loop)
P0171, P0172, P0173, P0174 (Fuel system)
P0300 - P0308 (Misfire)
P0335 (CKP sensor)
P0340, P0341 (CMP sensor)
P0500 (VSS)
P2196, P2198 (A/F sensor - rationality)
11 V or more
75°C (167°F) or more
OFF
Less than 4,000 rpm
Activated
OFF
10 to 70 %
2 or more
Not yet
2.5 to 15 g/sec.
ES–391
ES