Toyota Tundra (2015 year). Manual — part 2706

4.

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - BATTERY
AND BODY GROUND)

(a) Connect the cable to the negative (-) battery terminal.

NOTICE:

When disconnecting the cable, some systems need to be

initialized after the cable is reconnected

.

(b) Disconnect the J133 navigation receiver assembly connector.

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

Standard Resistance:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

J133-7 (GND1) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

J133-4 (+B1) - Body ground

Always

11 to 14 V

J133-3 (ACC1) - Body ground

Ignition switch ACC

11 to 14 V

J135-1 (IG) - Body ground

Ignition switch ON

11 to 14 V

Text in Illustration

*a

Result

RESULT

PROCEED TO

OK (for Column Shift Type)

A

OK (for Floor Shift Type)

B

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Naviga...

RESULT

PROCEED TO

NG

C

B

REPLACE NAVIGATION RECEIVER ASSEMBLY

C

REPAIR OR REPLACE HARNESS OR CONNECTOR

A

REPLACE NAVIGATION RECEIVER ASSEMBLY

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Naviga...

Last Modified: 9-16-2014

6.6 J

Doc ID: RM000002WSZ00QX

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 - ]

Title: CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Bus Buffer ECU Communication Stop Mode; 2015

MY Tundra [08/2014 - ]

Bus Buffer ECU Communication Stop Mode

DESCRIPTION

DETECTION ITEM

SYMPTOM

TROUBLE AREA

Bus Buffer ECU

Communication Stop

Mode

Either condition is met:

"Accessory Gateway" is not displayed on

the "Bus Check" screen.

"Bus Buffer ECU Communication Stop

Mode" in "DTC Combination Table"

applies.

Bus buffer ECU CAN

branch wire or

connector

Bus buffer ECU

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication

with the CAN, which causes resistance variation.

PROCEDURE

1.

PRECAUTION

NOTICE:

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the

battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Bus Buf...

NEXT

NEXT

before proceeding with work

.

2.

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

(a) Disconnect the cable from the negative (-) battery terminal before measuring the resistances of

the CAN main wire and the CAN branch wire.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the

SRS system.

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected

.

3.

CHECK FOR OPEN IN CAN BUS WIRE (BUS BUFFER ECU CAN BRANCH WIRE)

(a) Disconnect the J59 bus buffer ECU connector.

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

Standard Resistance:

TESTER CONNECTION

SWITCH CONDITION

SPECIFIED CONDITION

J59-3 (CAN+) - J59-2 (CAN-)

Ignition switch off

54 to 69 Ω

Text in Illustration

*a

NG

REPAIR OR REPLACE BUS BUFFER ECU CAN

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Bus Buf...