Toyota FJ Cruiser (GSJ 10, 15 series). Instruction — part 47
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–143
ES
TYPICAL ENABLING CONDITIONS
All:
Heated Oxygen Sensor Output Voltage (Output Voltage, High Voltage and Low Voltage):
Heated Oxygen Sensor Impedance (Low):
Heated Oxygen Sensor Impedance (High):
Heated Oxygen Sensor Output Voltage (Extremely High):
TYPICAL MALFUNCTION THRESHOLDS
Heated Oxygen Sensor Output Voltage (Output voltage):
Monitor runs whenever following DTCs not present
P0031, P0032, P0051, P0052 (A/F sensor heater - Sensor 1)
P0037, P0038, P0057, P0058 (O2 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)
P0171, P0172, P0174, P0175 (Fuel system)
P0300 - P0306 (Misfire)
P0335 (CKP sensor)
P0340 (CMP sensor)
P0455, P0456 (EVAP System)
P0500 (VSS)
P2196, P2198 (A/F sensor - rationality)
P2A00, P2A03 (A/F sensor - slow response)
Active air-fuel ratio control
Executing
Active air-fuel ratio control begins when all of following conditions met:
-
Battery voltage
11 V or more
Engine coolant temperature
75
°C (167°F) or more
Idling
OFF
Engine RPM
Less than 3,200 rpm
A/F sensor status
Activated
Fuel system status
Closed loop
Fuel cut
OFF
Engine load
10 to 70 %
Shift position
4 th or more
Battery voltage
11 V or more
Estimated sensor temperature
Less than 700
°C (1,292°F)
ECM monitor
Completed
DTC P0606
Not set
Battery voltage
11 V or more
Estimated sensor temperature
520
°C to 750°C (968°F to 1,382°F)
ECM monitor
Completed
DTC P0606
Not set
Battery voltage
11 V or more
Time after engine start
2 seconds or more
Either of following conditions met:
1 or 2
1. All of following conditions (a), (b) and (c) met
-
(a) Commanded air-fuel ratio
14.3 or less
(b) Rear HO2 sensor voltage
0.21 to 0.59 V
(c) OSC (Oxygen Storage Capacity of Catalyst)
2.5 g or more
2. All of following conditions (d), (e) and (f) met
-
ES–144
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
Heated Oxygen Sensor Output Voltage (Low output voltage):
Heated Oxygen Sensor Output Voltage (High output voltage):
Heated Oxygen Sensor Impedance (Low):
Heated Oxygen Sensor Impedance (High):
Heated Oxygen Sensor Output Voltage (Extremely High):
COMPONENT OPERATING RANGE
MONITOR RESULT
Refer to CHECKING MONITOR STATUS (See page
).
(d) Commanded air-fuel ratio
14.9 or more
(e) Rear HO2 sensor voltage
0.21 to 0.59 V
(f) OSC
2.5 g or more
All of following conditions (a), (b) and (c) met
-
(a) Commanded air-fuel ratio
14.3 or less
(b) Rear HO2 sensor voltage
Less than 0.21 V
(c) OSC (Oxygen Storage Capacity of Catalyst)
2.5 g or more
All of following conditions (a), (b) and (c) met
-
(a) Commanded air-fuel ratio
14.9 or more
(b) Rear HO2 sensor voltage
More than 0.59 V
(c) OSC (Oxygen Storage Capacity of Catalyst)
2.5 g or more
Duration of following condition met
30 seconds or more
Heated oxygen sensor impedance
Less than 5
Ω
Duration of following condition met
90 seconds or more
Heated oxygen sensor impedance
15 k
Ω or more
Duration of following condition met
10 seconds or more
Heated oxygen sensor voltage
1.2 V or more
Duration of following condition met
30 seconds or more
Heated oxygen sensor voltage
Varies between 0.1 V and 0.9 V
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–145
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WIRING DIAGRAM
CONFIRMATION DRIVING PATTERN
HINT:
•
This confirmation driving pattern is used in the "PERFORM CONFIRMATION DRIVING PATTERN"
procedure of the following diagnostic troubleshooting procedure.
•
Performing this confirmation driving pattern will activate the Heated Oxygen (HO2) sensor monitor.
(The catalyst monitor is performed simultaneously.) This is very useful for verifying the completion of a
repair.
NOTICE:
This test will not be completed if the vehicle is driven under absolutely constant speed conditions
such as with cruise control activated.
Battery
EFI
EFI
EFI
No. 2
+B
E2
HT1B
OX1B
+B
E2
HT2B
OX2B
Heated Oxygen Sensor
(Bank 2 Sensor 2)
Heated Oxygen Sensor (Bank 1 Sensor 2)
(*1)
(*1)
ECM
MREL
HT1B
OX1B
HT2B
OX2B
E2
*1: Shielded
B36
3
1
4
2
3
1
4
2
B34
1
2
1
2
5
3
1
2
B1
E47
8
B1
B2
B2
B1
5
33
28
18
1
A133412E02
ES–146
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
(a) Connect an intelligent tester to the DLC3.
(b) Turn the ignition switch ON.
(c) Turn the tester ON.
(d) Clear DTCs (See page
(e) Select the following menu items: DIAGNOSIS / CARB OBD II / READINESS TESTS.
(f) Check that O2S EVAL is INCMPL (incomplete).
(g) Start the engine and warm it up.
(h) Drive the vehicle at between 40 mph and 70 mph (64 km/h and 113 km/h) for at least 10 minutes.
(i) Note the state of the Readiness Tests items. Those items will change to COMPL (complete) as O2S
EVAL monitor operates.
(j) Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / PENDING CODES
and check if any DTCs (any pending DTCs) are set.
HINT:
If O2S EVAL does not change to COMPL, and any pending DTCs fail to set, extend the driving time.
INSPECTION PROCEDURE
HINT:
Intelligent tester only:
Malfunctioning areas can be identified by performing the A/F CONTROL function provided in the ACTIVE
TEST. The A/F CONTROL function can help to determine whether the Air-Fuel Ratio (A/F) sensor, Heated
Oxygen (HO2) sensor and other potential trouble areas are malfunctioning.
Ignition Switch ON
Idling
Between 40 and 70 mph
(64 and 113 km/h )
Vehicle Speed
(g)
(h)
Warm up
10 minutes
Time
(Note: Even when vehicle stops during driving pattern, test can be
resumed.)
NOTICE:
This test will not be completed if the
vehicle is driven under absolutely
constant speed, such as with cruise
control activated.
A115372E19
A098191E02
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