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

IN–35

).

NG

Repair or replace harness or connector.

OK

Check and replace translate ECU or skid con-
trol ECU (See page 

BR–52

).

NOTICE:
When replacing the skid control ECU, perform the zero point calibration (See page 

DI–897

).

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 

IN–35

).

NG

Repair or replace harness or connector.

OK

Check and replace skid control ECU 
(See page 

BR–52

).

NOTICE:
When replacing the skid control ECU, perform the zero point calibration (See page 

DI–897

).