Toyota Tundra. Manual — part 279

Fig. 44: Identifying J91 No. 3 Junction And J17 Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: Go to step 23

OK: Go to Next Step

15. CONNECT CONNECTOR

a. Reconnect the J91 No. 3 junction connector connector.

16. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR COMBINATION

METER ECU)

a. Disconnect the J95 No. 3 junction connector connector.

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

Result

RESULT REFERENCE TABLE

Tester Connection

Switch Condition Specified Condition Proceed to

J95-1 (CANH) - J95-2 (CANL) Ignition switch OFF

1 ohms or higher

OK

Below 1 ohms

NG

J95-1 (CANH) - J17-4 (CG)

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

Fig. 45: Identifying J95 No. 3 Junction And J17 Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: Go to step 25

OK: Go to Next Step

17. CONNECT CONNECTOR

a. Reconnect the J95 No. 3 junction connector connector.

18. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - MAIN BODY

ECU)

a. Disconnect the J97 No. 3 junction connector connector.

J95-2 (CANL) - J17-4 (CG)

Ignition switch OFF

1 ohms or higher

OK

J95-1 (CANH) - J17-4 (CG)

Ignition switch OFF

Below 1 ohms

NG

J95-2 (CANL) - J17-4 (CG)

J95-1 (CANH) - J17-16 (BAT)

Ignition switch OFF

1 ohms or higher

OK

J95-2 (CANL) - J17-16 (BAT)

J95-1 (CANH) - J17-16 (BAT)

Ignition switch OFF

Below 1 ohms

NG

J95-2 (CANL) - J17-16 (BAT)

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

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

Result

RESULT REFERENCE TABLE

Fig. 46: Identifying J97 No. 3 Junction And J17 Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Tester Connection

Switch Condition Specified Condition Proceed to

J97-1 (CANH) - J97-2 (CANL) Ignition switch OFF

1 ohms or higher

OK

Below 1 ohms

NG

J97-1 (CANH) - J17-4 (CG)

Ignition switch OFF

1 ohms or higher

OK

J97-2 (CANL) - J17-4 (CG)

J97-1 (CANH) - J17-4 (CG)

Ignition switch OFF

Below 1 ohms

NG

J97-2 (CANL) - J17-4 (CG)

J97-1 (CANH) - J17-16 (BAT)

Ignition switch OFF

1 ohms or higher

OK

J97-2 (CANL) - J17-16 (BAT)

J97-1 (CANH) - J17-16 (BAT)

Ignition switch OFF

Below 1 ohms

NG

J97-2 (CANL) - J17-16 (BAT)

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

NG: Go to step 27

OK: REPAIR OR REPLACE NO. 3 JUNCTION CONNECTOR

19. CONNECT CONNECTOR

a. Reconnect the J90 No. 3 junction connector connector.

20. CHECK FOR SHORT IN CAN BUS WIRES (FRONT POWER SEAT CONTROL ECU AND

SWITCH LH)

a. Disconnect the Z10 front power seat control ECU and switch LH connector.

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

Result

RESULT REFERENCE TABLE

Tester Connection

Switch Condition Specified Condition Proceed to

Z10-5 (CANH) - Z10-1 (CANL) Ignition switch OFF

1 ohms or higher

OK

Below 1 ohms

NG

Z10-5 (CANH) - J17-4 (CG)

Ignition switch OFF

1 ohms or higher

OK

Z10-1 (CANL) - J17-4 (CG)

Z10-5 (CANH) - J17-4 (CG)

Ignition switch OFF

Below 1 ohms

NG

Z10-1 (CANL) - J17-4 (CG)

Z10-5 (CANH) - J17-16 (BAT)

Ignition switch OFF

1 ohms or higher

OK

Z10-1 (CANL) - J17-16 (BAT)

Z10-5 (CANH) - J17-16 (BAT)

Ignition switch OFF

Below 1 ohms

NG

Z10-1 (CANL) - J17-16 (BAT)

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra