Toyota Sequoia (2005). Manual — part 321
F19698
ECM
MREL
8
E4
B–W
14
IA4
B–W
B–R
12
IA4
B–R
B–R
B–R
J16
J/C
D
D
D
1
E4
2
E4
+B
+B2
Engine Room J/B
EF1 Relay
2
2H
6
2H
1
2D
1
2F
3
2
5
1
B
W–B
W–B
W–B
7
E8
E01
EB
ED
J5
J/C
A
F10
FL Block
B
4
5
B
Battery
EF1 No.1
–
DIAGNOSTICS
CAN COMMUNICATION SYSTEM
DI–1079
1273
ECM Communication Stop Mode
MODE DESCRIPTION
Detection Item
Symptom
Trouble Area
ECM Communica-
tion Stop Mode
”ENGINE” is not displayed on the ”BUS CHECK” screen
of the hand–held tester.
DTCs are output from each ECU in ECM communication
stop mode as shown in the ”DTC COMBINATION TABLE”
(see page
).
Power source or inside the ECM
WIRING DIAGRAM
DIDI9–01
F19705
E4
+B2
E01
E8
ECM Wire Harness View:
+B
DI–1080
–
DIAGNOSTICS
CAN COMMUNICATION SYSTEM
1274
INSPECTION PROCEDURE
1
Check wire harness (ECM – Battery and ECM – Body ground).
PREPARATION:
Disconnect the ECM connectors (E4) and (E8).
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester connection
Condition
Specified value
E8–7 (E01) –
Body ground
Always
Below 1
Ω
CHECK:
Measure the voltage according to the value(s) in the table be-
low.
OK:
Tester connection
Condition
Specified value
E4–1 (+B) –
Body ground
Ignition Switch ON
10 to 14 V
E4–2 (+B2) –
Body ground
Ignition Switch ON
10 to 14 V
NG
Repair or replace wire harness or connector
(ECM – Battery or ECM – Body ground).
OK
Replace ECM (See page
F19699
Translate ECU
IG1
1
T5
B–R
A
J37
J/B
A
J37
B–R
Sub J/B No.3
8
3C
8
3A
B–R
Instrument Panel J/B
ECU–IG
4
1C
6
1C
4
1F
1
1L
AM1
2
1
B–Y
2
I18
Ignition SW
W–L
1
IG1
AM1
W
8
5
B
ALT
F10
FL Block
Battery
40
T5
O
A
A
O
J43
J/C
IG
GND
–
DIAGNOSTICS
CAN COMMUNICATION SYSTEM
DI–1081
1275
Translate ECU Communication Stop Mode
MODE DESCRIPTION
Detection Item
Symptom
Trouble Area
Translate ECU
Communication
Stop Mode
”TRANSLATE ECU” is not displayed on the ”BUS
CHECK” screen of the hand–held tester.
DTCs are output from each ECU in translate ECU com-
munication stop mode as shown in the ”DTC COMBINA-
TION TABLE” (see page
Power source or inside the translate ECU
WIRING DIAGRAM
DIDIA–01
F19152
IG1
T5
Translate ECU Wire Harness View:
GND
DI–1082
–
DIAGNOSTICS
CAN COMMUNICATION SYSTEM
1276
INSPECTION PROCEDURE
1
Check wire harness (Translate ECU – Battery and Translate ECU – Body ground).
PREPARATION:
Disconnect the translate ECU connector.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester connection
Condition
Specified value
T5–40 (GND) –
Body ground
Always
Below 1
Ω
CHECK:
Measure the voltage according to the value(s) in the table be-
low.
OK:
Tester connection
Condition
Specified value
T5–1 (IG1) –
Body ground
Ignition Switch ON
10 to 14 V
NG
Repair or replace wire harness or connector
(Translate ECU – Battery or Translate ECU –
Body ground).
OK
Replace translate ECU.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст