Toyota Sequoia (2005). Manual — part 325

F19749

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

J55

W

R

Earth Terminal

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16

F19737

DLC3:

D6

CANH

CANL

–

DIAGNOSTICS

CAN COMMUNICATION SYSTEM

DI–1095

1289

5

Check CAN bus lines for short circuit (Translate ECU main bus line).

PREPARATION:
Disconnect the translate ECU main bus line connector (J55)
from the junction connector.
NOTICE:

Before disconnecting the connector, make note of
where it is connected.

Reconnect the connector to its original position.

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

Tester connection

Condition

Specified value

D6–6 (CANH) –

D6–14 (CANL)

Ignition Switch OFF

108 to 132

Ω

OK

Go to step 10.

NG

6

Connect the connector.

Reconnect the translate ECU main bus line connector (J55) to the junction connector.

NEXT

F19749

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

J56

W

G

Earth Terminal

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16

F19737

DLC3:

D6

CANH

CANL

DI–1096

–

DIAGNOSTICS

CAN COMMUNICATION SYSTEM

1290

7

Check CAN bus lines for short circuit (Suspension control ECU sub bus line).

HINT:
For vehicles without an enhanced air suspension system, go to
NG.
PREPARATION:
Disconnect the suspension control ECU sub bus line connector
(J56) from the junction connector.
NOTICE:

Before disconnecting the connector, make a note of
where it is connected.

Reconnect the connector to its original position.

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

Tester connection

Condition

Specified value

D6–6 (CANH) –

D6–14 (CANL)

Ignition Switch OFF

54 to 69

Ω

OK

Go to step 12.

NG

Replace junction connector.

8

Connect the connector.

Reconnect the ECM main bus line connector (J53) to the junction connector.

NEXT

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16

F19737

DLC3:

D6

CANH

CANL

–

DIAGNOSTICS

CAN COMMUNICATION SYSTEM

DI–1097

1291

9

Check CAN bus lines for short circuit (ECM main bus line).

PREPARATION:
Disconnect the ECM connector (E5).
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester connection

Condition

Specified value

D6–6 (CANH) –

D6–14 (CANL)

Ignition Switch OFF

108 to 132

Ω

OK

Replace ECM (See page

SF–80

).

NG

Repair or replace ECM main bus line or con-
nector (CAN–H, CAN–L).

10

Connect the connector.

Reconnect the translate ECU main bus line connector (J55) to the junction connector.

NEXT

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16

F19737

DLC3:

D6

CANH

CANL

DI–1098

–

DIAGNOSTICS

CAN COMMUNICATION SYSTEM

1292

11

Check CAN bus lines for short circuit (Translate ECU main bus line).

PREPARATION:
Disconnect the translate ECU connector (T5).
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester connection

Condition

Specified value

D6–6 (CANH) –

D6–14 (CANL)

Ignition Switch OFF

108 to 132

Ω

OK

Replace translate ECU.

NG

Repair or replace translate ECU main bus line
or connector (CAN–H, CAN–L).

12

Connect the connector.

Reconnect the suspension control ECU sub bus line connector (J56) to the junction connector.

NEXT