Toyota Sequoia (2005). Manual - part 318

DIDI3–01

DTC

Trouble Mode

Output from

Output DTC

ECM
Communication
Stop Mode

Translate ECU
Communication
Stop Mode

Suspension Control
ECU Communication
Stop Mode (*1)

Skid Control
ECU

Translate ECU

Suspension
Control 
ECU (*1)

See page

U0100/65

65

94

U0100/65

U0122/67

U0132/71



–

–

–

–











–

–









DI–1079

DI–1081

DI–1083





–

DIAGNOSTICS

CAN COMMUNICATION SYSTEM

DI–1067

1261

PROBLEM SYMPTOMS TABLE

1.

COMMUNICATION STOP MODE TABLE

(a)

Complete ”Check CAN Bus Line” (see page 

DI–1076

) to confirm that there is no malfunction in the CAN

bus line. Select ”BUS CHECK” on the hand–held tester via the CAN VIM (see page 

DI–1073

).

(b)

Check the communication stop mode of the ECUs not displayed among the following: ”ENGINE”,
”TRANSLATE ECU”, or ”REAR AIRSUS”.

Symptom

Inspection Item

See page

”ENGINE” is not displayed on the hand–held tester via CAN VIM.

ECM Communication Stop Mode

DI–1079

”TRANSLATE ECU” is not displayed on the hand–held tester via

CAN VIM.

Translate ECU Communication Stop Mode

DI–1081

”REAR AIRSUS” is not displayed on the hand–held tester via

CAN VIM. (*1)

Suspension Control ECU Communication Stop Mode

DI–1083

HINT:
*1: w/ Air Suspension System

2.

DTC COMBINATION TABLE

(a)

Perform troubleshooting according to the combination of DTCs output.

HINT:

*1: w/ Air Suspension System



: DTCs that are being output.

–: DTCs that are not being output.

Previous CAN communication system DTCs may be the cause if CAN communication system DTCs
are output and all ECUs connected to the CAN communication system are displayed on the hand–held
tester’s ”BUS CHECK” screen via the CAN VIM.

DIDI4–01

F19816

Junction Connector ”B” Side
(w/o Earth Terminal):

Junction Connector ”A” Side
(w/ Earth Terminal):

Earth Terminal

Junction
Connector

J53

J54

J55

G
W

L

W

B

W

R

W

J56 (*1)

DI–1068

–

DIAGNOSTICS

CAN COMMUNICATION SYSTEM

1262

TERMINALS OF ECU

HINT:
This section describes the standard CAN values for all CAN re-
lated components.
1.

Junction Connector

HINT:

The connectors connected to the junction connector can
be distinguished by the colors of the bus lines and the
connecting side of the connector.

J53, J54, J55 and J56 are interchangeable.

*1: w/ Air Suspension System

CAN J/C connectors 

(A side, w/ earth terminal)

Color (CAN–H Side)

Color (CAN–L Side)

ECM (J53)

L

W

DLC3 (J54)

B

W

Translate ECU (J55)

R

W

Suspension Control ECU (J56) *1

G

W

F19735

CAN J/C Connector Front View:

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16

F19737

DLC3:

D6

CANH

CG

BAT

CANL

–

DIAGNOSTICS

CAN COMMUNICATION SYSTEM

DI–1069

1263

2.

The Terminals of Connectors for the Junction Con-
nector

Terminal

Terminal symbol

1

CANH

2

CANL

3.

DLC3

(a)

Measure the resistance according to the value(s) in the
table below.

Standard:

Terminals

Wiring Color

Condition

Specified Value

D6–6 (CANH) – D6–14 (CANL)

B – W

Ignition Switch OFF

54 to 69 

Ω

D6–6 (CANH) – D6–4 (CG)

B – O

Ignition Switch OFF

3 k

Ω

 or more

D6–14 (CANL) – D6–4 (CG)

W – O

Ignition Switch OFF

3 k

Ω

 or more

D6–6 (CANH) – D6–16 (BAT)

B – W–R

Ignition Switch OFF

1 M

Ω

 or more

D6–14 (CANL) – D6–16 (BAT)

W – W–R

Ignition Switch OFF

1 M

Ω

 or more

F16975

Translate ECU:

T5

ENG+

ENG–

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16

F19737

F19152

F19830

Translate ECU Wire Harness View:

T5

GND

ENG–

ENG+

DLC3:

D6

BAT

DI–1070

–

DIAGNOSTICS

CAN COMMUNICATION SYSTEM

1264

4.

Translate ECU

(a)

Measure the resistance according to the value(s) in the
table below.

Standard:

Terminals

Condition

Specified Value

T5–14 (ENG+) – T5–16 (ENG–)

Ignition Switch OFF

108 to 132 

Ω

(b)

Measure the resistance according to the value(s) in the
table below.

Standard:

Terminals

Wiring Color

Condition

Specified Value

T5–14 (ENG+) – T5–16 (ENG–)

R – W

Ignition Switch OFF

108 to 132 

Ω

T5–14 (ENG+) – T5–40 (GND)

R – O

Ignition Switch OFF

3 k

Ω

 or more

T5–16 (ENG–) – T5–40 (GND)

W – O

Ignition Switch OFF

3 k

Ω

 or more

T5–14 (ENG+) – D6–16  (BAT)

R – W–R

Ignition Switch OFF

1 M

Ω

 or more

T5–16 (ENG–) – D6–16 (BAT)

W – W–R

Ignition Switch OFF

1 M

Ω

 or more