Toyota Sequoia (2005). Manual — part 327

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

CG

–

DIAGNOSTICS

CAN COMMUNICATION SYSTEM

DI–1103

1297

5

Check CAN bus line for short to GND (Translate ECU main bus line).

HINT:
For vehicles without an enhanced air suspension system, go to
step 11.
PREPARATION:
Disconnect the translate ECU main bus line connector (J55)
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

D6–4 (CG) –

D6–6 (CANH)

Ignition Switch OFF

3 k

Ω

or higher

D6–4 (CG) –

D6–14 (CANL)

Ignition Switch OFF

3 k

Ω

or higher

OK

Go to step 10.

NG

6

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

CG

DI–1104

–

DIAGNOSTICS

CAN COMMUNICATION SYSTEM

1298

7

Check CAN bus line for short to GND (Suspension control ECU sub bus line).

PREPARATION:
Disconnect the suspension control ECU connector (S25).
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester connection

Condition

Specified value

D6–4 (CG) –

D6–6 (CANH)

Ignition Switch OFF

3 k

Ω

or higher

D6–4 (CG) –

D6–14 (CANL)

Ignition Switch OFF

3 k

Ω

or higher

OK

Replace suspension control ECU.
(See page

SA–171

)

NG

Repair or replace suspension control ECU
sub bus line or connector (CAN–H, CAN–L).

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

CG

–

DIAGNOSTICS

CAN COMMUNICATION SYSTEM

DI–1105

1299

9

Check CAN bus line for short to GND (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

D6–4 (CG) –

D6–6 (CANH)

Ignition Switch OFF

3 k

Ω

or higher

D6–4 (CG) –

D6–14 (CANL)

Ignition Switch OFF

3 k

Ω

or higher

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

CG

DI–1106

–

DIAGNOSTICS

CAN COMMUNICATION SYSTEM

1300

11

Check CAN bus line for short to GND (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

D6–4 (CG) –

D6–6 (CANH)

Ignition Switch OFF

3 k

Ω

or higher

D6–4 (CG) –

D6–14 (CANL)

Ignition Switch OFF

3 k

Ω

or higher

OK

Replace translate ECU.

NG

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