Toyota FJ Cruiser (GSJ 10, 15 series). Instruction — part 90
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–315
ES
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
ALL
Sensor voltage detection monitor (Lean side malfunction P2195, P2197):
Sensor voltage detection monitor (Rich side malfunction P2196, P2198):
Sensor current detection monitor (P2195, P2196, P2197, P2198):
Related DTCs
P2195: A/F sensor (Bank 1) signal stuck lean
P2196: A/F sensor (Bank 1) signal stuck rich
P2197: A/F sensor (Bank 2) signal stuck lean
P2198: A/F sensor (Bank 2) signal stuck rich
Required Sensors/Components (Main)
A/F sensor
Required Sensors/Components (Related)
HO2 sensor
Frequency of Operation
Continuous
Duration
10 seconds: Sensor voltage detection monitor
3 seconds: Sensor current detection monitor
MIL Operation
2 driving cycles
Sequence of Operation
None
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)
P0136, P0156 (O2 Sensor - Sensor 2)
P0171, P0172, P0174, P0175 (Fuel system)
P0300 - P0306 (Misfire)
P0335 (CKP sensor)
P0340, P0341 (CMP sensor)
P0455, P0456 (EVAP system)
P0500 (VSS)
Time while all of following conditions met
2 seconds or more
Rear HO2 sensor voltage
0.15 V or more
Time after engine start
30 seconds or more
A/F sensor status
Activated
Fuel system status
Closed-loop
Engine
Running
Time while all of following conditions met
2 seconds or more
Rear HO2 sensor voltage
Below 0.6 V
Time after engine start
30 seconds or more
A/F sensor status
Activated
Fuel system status
Closed-loop
Engine
Running
Battery voltage
11 V or more
Atmospheric pressure
76 kpa (570 mmHg) or higher
Air-fuel ratio sensor status
Activated
Engine coolant temperature
75
°C (167°F) or more
Continuous time of fuel cut
3 to 10 seconds
ES–316
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
TYPICAL MALFUNCTION THRESHOLDS
Sensor voltage detection monitor (Lean side malfunction P2195, P2197):
Sensor voltage detection monitor (Rich side malfunction P2196, P2198):
Sensor current detection monitor (High side malfunction P2195, P2197):
Sensor current detection monitor (Low side malfunction P2196, P2198):
MONITOR RESULT
Refer to CHECKING MONITOR STATUS (See page
).
A/F sensor voltage
More than 3.8 V for 10 seconds
A/F sensor voltage
Less than 2.8 V for 10 seconds
Air-fuel ratio sensor current during fuel cut
3.6 mA or more
Air-fuel ratio sensor current during fuel cut
Less than 1.4 mA
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–317
ES
WIRING DIAGRAM
CONFIRMATION DRIVING PATTERN
This confirmation driving pattern is used in the "PERFORM CONFIRMATION DRIVING PATTERN"
procedure of the following diagnostic troubleshooting procedure.
3
1
4
MREL
HA1A
ECM
A1A+
A1A-
HA2A
A2A+
A2A-
Shielded
Shielded
B31
Air-fuel Ratio Sensor
(Bank 2 Sensor 1)
B33
Air-fuel Ratio Sensor
(Bank 1 Sensor 1)
HA2A
A2A+
+B
A2A-
HA1A
A1A+
+B
A1A-
A/F
HEATER
A/F
HEATER
Battery
EFI
EFI
2
3
1
4
2
1
B2
22
B2
2
B2
30
B2
31
B2
23
B2
8
E47
5
3
1
2
5
3
2
1
1
2
1
2
A133427E01
ES–318
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) Start the engine, and warm it up until the ECT reaches 75
°C (167°F) or higher.
(f) Select the following menu items to check the fuel-cut status: DIAGNOSIS / ENHANCED OBD II / DATA
LIST / USER DATA / FC IDLE.
(g) Drive the vehicle at between 38 mph (60 km/h) and 75 mph (120 km/h) for at least 10 minutes.
(h) Change the transmission to 2nd gear.
Monitor Drive Pattern
ECT: 75°C (167°F) or more
Vehicle Speed
Warming up
At least 3 times
Accelerator Pedal
Depressed
Accelerator Pedal
Released (Fuel-cut)
10 minutes
or more
10 seconds
or more
Between 38 and
75 mph
(60 and 120 km/h)
40 mph (64 km/h)
or more
6 mph
(10 km/h)
Idling
(e)
(h)
Time
(g)
(i)
(j)
(k)
4 seconds
or more
Refer to figure below
A107162E11
Driving Pattern Detail for (h) through (k)
Reference Engine RPM
Cumulative Detection Period "t" = t1 + t2 + t3 = 3 seconds or more
2,500 rpm
1,000 rpm
Idling
Idling
4 seconds
or more
4 seconds
or more
4 seconds
or more
(h)
(i)
(j)
(k)
Delay
Detection Period t1
t2
t3
Time
A107163E09
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