Toyota Sequoia (2005). Manual - part 302

F18069

P2

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

DI–1003

1197

INSPECTION PROCEDURE

1

Check the DTC of the VSC (See page 

DI–911

).

CHECK:
Check skid control ECU DTC.
RESULT:

DTC is not output

A

DTC (C1202 / 52) is output

B

B

Repair circuit indicated by the output code
 (See page 

DI–921

).

A

2

Check brake fluid level warning switch.

PREPARATION:
Disconnect the brake fluid level warning switch connector.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester Connection

Switch Condition

Specified Condition

(B2–1) – (B2–2)

Float UP

10 k

Ω

 or more

(No continuity)

(B2–1) – (B2–2)

Float DOWN

1 

Ω

 or less (Continuity)

NG

Replace brake fluid level warning switch.

OK

3

Check for open and short circuit in harness and connector between brake fluid
level warning switch and translate ECU (See page 

IN–35

).

NG

Repair or replace harness or connector.

OK

DI–1004

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

1198

4

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 58 is not output

A

DTC 58 is output

B

B

Replace skid control ECU 
(See page 

BR–52

).

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

DI–897

).

A

END

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

DI–1005

1199

DTC

65

Malfunction 1 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 the CAN communication system.
This DTC is output when communication between the translate ECU and the skid control ECU is cut off.

DTC No.

DTC Detecting Condition

Trouble Area

65

Any of the following 1. through 3. is detected when IG1

voltage is 8.5 V or more and vehicle speed exceeds by 9

mph (15 km/h) or more.

1. Condition that signal cannot be received from ECM at

least once within 5 sec. occurs 10 times or more within

60 seconds.

2. Signal cannot be received continuously for 2 sec. or

more.

3. Condition that signal cannot be sent to ECM at least

once within 5 sec. occurs 10 times or more within 60

seconds.

ENG+, ENG– circuit (CAN communication system)

ECM

Translate ECU

Suspension control ECU

DIDMJ–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–1006

–

DIAGNOSTICS

ABS WITH EBD & BA & TRAC & VSC SYSTEM

1200

WIRING DIAGRAM