Toyota Sequoia (2005). Manual - part 303

F19152

Translate ECU

GND

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

DI–1007

1201

INSPECTION PROCEDURE

1

Check DTC of the VSC (See page 

DI–911

).

CHECK:
Check skid control ECU DTC.
RESULT:

DTC is not output

A

DTC is output

B

B

Repair circuit indicated by the output code 
(See page 

DI–921

).

A

2

Check for open circuit in harness and connector between GND terminal of the
translate ECU and body ground (See page 

IN–35

).

PREPARATION:
Disconnect the translate ECU connector.
CHECK:
Measure the resistance between the GND terminal and body
ground.
OK:

Continuity

NG

Repair or replace harness or connector (Trans-
late ECU GND circuit.

OK

DI–1008

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

1202

3

Replace the translate ECU and check if the trouble occurs again.

PREPARATION:
(a)

Clear the translate DTC (See page 

DI–911

).

(b)

Turn the ignition switch OFF.

CHECK:
Turn the ignition switch to the ON position, and check if the same DTC is stored in the memory.
PREPARATION:

DTC 65 is not output

A

DTC 65 is output

B

B

Check and replace suspension control ECU,
ECM or CAN communication system.

A

END

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

DI–1009

1203

DTC

94

Malfunction 2 of Vehicle CAN

CIRCUIT DESCRIPTION

The circuit is used to send TRAC&VSC control information from the skid control ECU to the ECM, and engine
control information from the ECM to the skid control ECU via CAN communication system.
This DTC is output when the ECM and translate ECU cannot communicate with each other.

DTC No.

DTC Detecting Condition

Trouble Area

94

When each of the following 1 or 2 is detected at IG1 voltage

of 8.5 V or more.

1. Communication error because of noise.

2. Data sending error after writing to output device for 5

sec. or more.

ENG+, ENG– circuit (CAN communication system)

ECM

Translate ECU

Suspension control ECU

DIDMK–01

F19799

S25
Suspension Control ECU

CANL

CANH

34

33

W

L

2

J53

1

2

J55

1

J55

W

R

16

T5

14

T5

ENG–

ENG+

VSC+

VSC–

7

T5

11

T5

L

W

W

L

7

IL2

6

IL2

2

6

S1 ABS & VSC Actuator
(Skid Control ECU)

Translate
ECU

IG1

1

T5

B–R

J37

J37

J/C

Sub J/B No.3

8

3C

8

3A

B–R

B–R

B–Y

W–L

I18 
Ignition SW

W

Instrument Panel J/B

4

1F

1

1L

4

1C

6

1C

ECU–IG

AM1

AM1

IG1

ALT

Battery

GND

40

T5

J43 
J/C

O

A

A

O

IG

1

2

CANH

CANL

A

A

8

5

B

F10
Fusible Link
Block

J53

J56

J56

1

2

W

G

28

29

CANL

CANH

E5 
ECM

(*1) Vehicle CAN Circuit
(*2) CAN1 Circuit

(*1)

(*2)

(*1)

(*1)

(*1)

(*1)

(*1)

(*2)

(*2)

(*2)

DI–1010

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

1204

WIRING DIAGRAM