Toyota Sequoia (2005). Manual — part 315
F19788
6
IL2
7
CANL
S1
2
VSC+
6
TC
28
Translate ECU
CANH
11
VSC–
TC
CG
J43
J/C
IG
4A
5
5
4B
P–B
W
L
ABS & VSC Actuator
(Skid Control ECU)
7
S1
T5
T5
T5
W
L
IL2
P–B
D6
Data Link Connector 3
O
13
4
Sub J/B No. 4
O
A
A
(*) CAN1 Circuit
(*)
(*)
(*)
(*)
–
DIAGNOSTICS
ABS WITH EBD & BA & TRAC & VSC SYSTEM
DI–1055
1249
Tc Terminal Circuit
CIRCUIT DESCRIPTION
Connecting terminals Tc and CG of the DLC3 causes the skid control ECU to indicate the DTC by blinking
the ABS warning light, VSC TRAC warning light and BRAKE warning light.
WIRING DIAGRAM
DI94B–04
F09678
ON
DLC3
Tc
CG
(+)
(–)
DI–1056
–
DIAGNOSTICS
ABS WITH EBD & BA & TRAC & VSC SYSTEM
1250
INSPECTION PROCEDURE
1
Check voltage between terminals Tc and CG of the DLC3.
PREPARATION:
Turn the ignition switch to the ON position.
CHECK:
Measure the voltage between terminals Tc and CG of the DLC3.
OK:
Voltage: 10 to 14 V
OK
If ABS warning light does not blink even after Tc
and CG have been connected, the ECU may be
defective.
NG
2
With ignition switch OFF, check for open and short circuit in harness and con-
nector between skid control ECU and DLC3, DLC3 and body ground (See page
NG
Repair or replace harness or connector.
OK
Check and replace translate ECU or skid con-
trol ECU (See page
).
NOTICE:
When replacing the skid control ECU, perform the zero point calibration (See page
).
D6
DataLink
Connector
F19789
ABS & VSC Actuator
(Skid Control ECU)
R–L
T5
27
TS
24
40
S1
12
O
IG
TS
CG
4
R–L
R–L
R–L
TS
IL1
Translate ECU
3
O
A
A
J43
J/C
4C
4B
4A
6
6
6
Sub J/B No.4
(*) CAN1 Circuit
(*)
–
DIAGNOSTICS
ABS WITH EBD & BA & TRAC & VSC SYSTEM
DI–1057
1251
Ts Terminal Circuit
CIRCUIT DESCRIPTION
In sensor check mode (test mode), a malfunction of the speed sensor that cannot be judged when the vehicle
is stopped is judged while driving.
Transition to sensor check mode (test mode) can be performed by connecting terminals Ts and CG of the
DLC3 and turning the ignition switch from OFF to ON.
WIRING DIAGRAM
DI94A–05
F18920
DLC3
Ts
CG
ON
(+)
(–)
DI–1058
–
DIAGNOSTICS
ABS WITH EBD & BA & TRAC & VSC SYSTEM
1252
INSPECTION PROCEDURE
1
Check voltage between terminals Ts and CG of the DLC3.
CHECK:
(a)
Turn the ignition switch to the ON position.
(b)
Measure the voltage between terminals Ts and CG of the
DLC3.
OK:
Voltage: 10 to 14 V
OK
If ABS warning light does not blink even after Ts
and CG are connected, the ECU may be defec-
tive.
NG
2
Check for open and short circuit in harness and connector between skid control
ECU and DLC3, DLC3 and body ground (See page
).
NG
Repair or replace harness or connector.
OK
Check and replace skid control ECU
(See page
).
NOTICE:
When replacing the skid control ECU, perform the zero point calibration (See page
).
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