Toyota Sequoia (2005). Manual — part 105
![](/vehicles/linovind/vere/fry/onoway.png)
A03401
IGT Signal Waveform
IGT
GND
IGF
20 msec./Division
GND
A20793
Normal
Ignition signal
(IGT)
Ignition
confirmation
signal (IGF)
Malfunction
Circuit Open
ECM
IGF
IGT
Igniter
Ignition Coil
Time
Ignition Coil with Igniter
–
DIAGNOSTICS
ENGINE
DI–223
417
DTC No.
DTC Detecting Condition
Trouble Area
P0351
P0352
P0353
P0354
P0355
P0356
P0357
P0358
No IGF signal to ECM while engine is running
Open or short in IGF1 or IGF2 and IGT1 to IGT8 circuit from
ignition coil with igniter to ECM
No. 1 to No. 8 ignition coil with igniter (primary ignition)
Ignition system
ECM
Reference: Inspection using the oscilloscope.
During cranking or idling, check the waveform between termi-
nals IG1 to IG8 and E1, and IGF1, IGF2 and E1 of the E6 and
E8 ECM connectors.
MONITOR DESCRIPTION
If the ECM does not receive the IGF after sending the IGT it interprets this as a fault in the igniter and sets
a DTC.
![](/vehicles/linovind/vere/fry/xxp.png)
DI–224
–
DIAGNOSTICS
ENGINE
418
MONITOR STRATEGY
P0351
No. 1 ignition coil with igniter circuit malfunction
P0352
No. 2 ignition coil with igniter circuit malfunction
P0353
No. 3 ignition coil with igniter circuit malfunction
R l t d DTC
P0354
No. 4 ignition coil with igniter circuit malfunction
Related DTCs
P0355
No. 5 ignition coil with igniter circuit malfunction
P0356
No. 6 ignition coil with igniter circuit malfunction
P0357
No. 7 ignition coil with igniter circuit malfunction
P0358
No. 8 ignition coil with igniter circuit malfunction
Required sensors/components
Igniter
Frequency of operation
Continuous
Duration
0.256 sec. + 4 sparks
MIL operation
Immediate
Sequence of operation
None
TYPICAL ENABLING CONDITIONS
It
Specification
Item
Minimum
Maximum
The monitor will run whenever these
DTCs are not present
See page
Engine speed
–
1,500 rpm
Either of the following conditions is met:
Condition 1 or 2
1. Following conditions are met:
Condition (a) and (b)
(a) Engine speed
–
500 rpm
(b) Battery voltage
6 V
–
2. Following conditions are met:
Condition (a) and (b)
(a) Engine speed
500 rpm
–
(b) Battery voltage
10 V
–
TYPICAL MALFUNCTION THRESHOLDS
Detection Criteria
Threshold
”Ignition signal fail count”
More than 2
”Ignition signal fail count” is on the right:
When IGF does not return despite sending IGT.
COMPONENT OPERATING RANGE
Standard Value
Confirmed signal number = ignition signal number
![](/vehicles/linovind/vere/fry/oth.png)
A15470
A19381
I8 Ignition Coil with Igniter No. 8
B–W
BR
2
3
Ignition Coil with Igniter No. 7
I7
4
1
B–R
B–R
ECM
24
E8 IGF1
IGF2
IGT8
E8
25
12
E8
IGT7
9
E8
IGT6
11
E8
15
E8 IGT5
E8
8
IGT4
IGT3
E8
14
IGT2
13
E8
E8
10
IGT1
I18 Ignition SW
W–R
IG2 AM2
5
1C
2
1C
3
IGN2
Instrument Panel J/B
2
1D
7
B–R
5
IG4
B–R
W–R
Engine Room J/B
2C
1
2D
AM2
1
2
B
Battery
F10
Fusible Link Block
4
1
2
N1 Noise Filter No. 1
B–R
1
3
B–R
4
BR
EC
2
I1 Ignition Coil with Igniter No. 1
B–R
I2 Ignition Coil with Igniter No. 2
1
3
4
2
B–W
BR
B–R
I3 Ignition Coil with Igniter No. 3
BR
BR
B–R
B–R
B–R
B–R
B–R
B–R
B–R
B–R
3
B–R
1
4
2
B–W
I4 Ignition Coil with Igniter No. 4
4
1
3
2
I5 Ignition Coil with Igniter No. 5
B–W
I6 Ignition Coil with Igniter No. 6
1
3
2
4
1
3
2
4
1
4
2
3
BR
B–W
G–R
P–L
G–W
R–W
G–B
LG–B
B–L
B–R
LG
BR
BR
BR
1J
BR
B–R
B–R
B–R
B–R
6
B–R
BR
BR
BR
BR
BR
BR
BR
B–R
B–R
B–R
B
–
DIAGNOSTICS
ENGINE
DI–225
419
WIRING DIAGRAM
![](/vehicles/linovind/vere/fry/asll.png)
DI–226
–
DIAGNOSTICS
ENGINE
420
INSPECTION PROCEDURE
HINT:
If DTCs P0351, P0354, P0356 and P0357 are output simultaneously, IGF1 circuit may be open or
short.
If DTCs P0352, P0353, P0355 and P0358 are output simultaneously, IGF2 circuit may be open or
short.
Read freeze frame data using
the hand−held tester
. Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the
vehicle was running or stopped, if the engine was warmed up or not, if the air–fuel ratio was lean or
rich, as well as other data from the time when a malfunction occurred.
1
Check spark plug and spark (See page
).
NG
Go to step 4.
OK
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст