Toyota FJ Cruiser (GSJ 10, 15 series). Manual — part 63
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
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ES
MONITOR DESCRIPTION
If the ECM does not receive any IGF signals despite transmitting the IGT signal, it interprets this as a fault
in the igniter and sets a DTC.
If the malfunction is not repaired successfully, a DTC is set 1second after the engine is next started.
MONITOR STRATEGY
Related DTCs
P0351: Igniter (Cylinder 1) malfunction
P0352: Igniter (Cylinder 2) malfunction
P0353: Igniter (Cylinder 3) malfunction
P0354: Igniter (Cylinder 4) malfunction
P0355: Igniter (Cylinder 5) malfunction
P0356: Igniter (Cylinder 6) malfunction
Required Sensors/Components (Main)
Igniter (Cylinder 1 to 6)
Required Sensors/Components (Related)
Crankshaft position sensor
Frequency of Operation
Continuous
Duration
0.256 seconds and 4 sparks
MIL Operation
Immediate
Sequence of Operation
None
Ignition Coil with Igniter
Igniter
Ignition Coil
Ignition Signal
(IGT)
Ignition
Confirmation
Signal (IGF)
Normal
Malfunction
Circuit Open
Time
ECM
IGT
IGF
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1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
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TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
COMPONENT OPERATING RANGE
Monitor runs whenever following DTCs not present
None
Either of following conditions 1 or 2 met
-
1. Following conditions (a) and (b) met:
-
(a) Engine RPM
500 rpm or less
(b) Battery voltage
6 V or more
2. Following conditions (a) and (b) met:
-
(a) Engine RPM
More than 500 rpm
(b) Battery voltage
10 V or more
(c) Number of sparks after CPU is reset
5 sparks or more
Ignition signal fail count
More than 2 times
Ignition signal fail count is on the right:
When IGF does not return despite sending IGT.
IGF signal
Igniter transmits IGF signal when it receives IGT signal from ECM
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
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WIRING DIAGRAM
ECM
IGT1
IGF1
IGT2
IGT3
IGT4
IGT5
IGT6
IG2
AM2
Ignition
Switch
Noise
Filter
AM2
Battery
Ignition Coil Assembly
(with Igniter No. 1)
Ignition Coil Assembly
(with Igniter No. 6)
7
6
1
2
B8
A1
B7
2
3
4
1
IGF
GND
+B
IGT1
2
3
4
1
IGF
GND
+B
IGT6
2
3
4
1
IGF
GND
+B
IGT5
2
3
4
1
IGF
GND
+B
IGT4
2
3
4
1
IGF
GND
+B
IGT3
2
3
4
1
IGF
GND
+B
IGT2
B24
Ignition Coil Assembly
(with Igniter No. 5)
B20
Ignition Coil Assembly
(with Igniter No. 3)
B23 Ignition Coil Assembly
(with Igniter No. 4)
B5
Ignition Coil Assembly
(with Igniter No. 2)
B6
8
B1
24
B1
9
B1
10
B1
11
B1
12
B1
13
B1
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1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
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INSPECTION PROCEDURE
HINT:
Read freeze frame data using an intelligent tester. Freeze frame data record the engine condition when
malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was
moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other
data, from the time the malfunction occurred.
(a) Check the spark plug and sparks of the misfiring cylinder
).
NG
OK
(a) Disconnect the B5, B6, B7, B20, B23 or B24 ignition coil
with igniter connector.
(b) Disconnect the B1 ECM connector.
(c) Check the resistance.
Standard Resistance (Check for open)
Standard Resistance (Check for short)
(d) Reconnect the ECM connector.
(e) Reconnect the ignition coil with igniter connector.
NG
OK
1
CHECK SPARK PLUG AND SPARK OF MISFIRING CYLINDER
Go to step 4
2
CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM (IGF1 SIGNAL
TERMINAL))
B1
Front View
ECM Connector
Wire Harness Side:
IGF1
IGF
Ignition Coil with Igniter Connector
B5 B6 B7 B20 B23 B24
A116293E05
Tester Connections
Specified Conditions
IGF (B7-2) - IGF1 (B1-24)
Below 1
Ω
IGF (B24-2) - IGF1 (B1-24)
IGF (B6-2) - IGF1 (B1-24)
IGF (B23-2) - IGF1 (B1-24)
IGF (B5-2) - IGF1 (B1-24)
IGF (B20-2) - IGF1 (B1-24)
Tester Connections
Specified Conditions
IGF (B7-2) or IGF1 (B1-24) - Body ground
10 k
Ω or higher
IGF (B24-2) or IGF1 (B1-24) - Body ground
IGF (B6-2) or IGF1 (B1-24) - Body ground
IGF (B23-2) or IGF1 (B1-24) - Body ground
IGF (B5-2) or IGF1 (B1-24) - Body ground
IGF (B20-2) or IGF1 (B1-24) - Body ground
REPAIR OR REPLACE HARNESS OR
CONNECTOR
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