Toyota Tundra. Manual — part 280

Fig. 47: Identifying Z10 Front Power Seat Control ECU And Switch LH And J17 DLC3
Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO FRONT POWER SEAT
CONTROL ECU AND SWITCH LH (CANH, CANL)

OK: REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY (See REMOVAL )

21. CONNECT CONNECTOR

a. Reconnect the J89 No. 3 junction connector connector.

22. CHECK FOR SHORT IN CAN BUS WIRES (MULTIPLEX TILT AND TELESCOPIC ECU)

a. Disconnect the J47 multiplex tilt and telescopic ECU 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

J47-5 (CANH) - J47-14 (CANL) Ignition switch OFF

1 ohms or higher

OK

Below 1 ohms

NG

J47-5 (CANH) - J17-4 (CG)

Ignition switch OFF

1 ohms or higher

OK

J47-14 (CANL) - J17-4 (CG)

J47-5 (CANH) - J17-4 (CG)

Ignition switch OFF

Below 1 ohms

NG

J47-14 (CANL) - J17-4 (CG)

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

Fig. 48: Identifying J47 Multiplex Tilt And Telescopic ECU And J17 DLC3 Connector
Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO MULTIPLEX TILT AND
TELESCOPIC ECU (CANH, CANL)

OK: REPLACE MULTIPLEX TILT AND TELESCOPIC ECU (See DISASSEMBLY )

23. CONNECT CONNECTOR

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

24. CHECK FOR SHORT IN CAN BUS WIRES (OUTER MIRROR CONTROL ECU)

a. Disconnect the N8 outer mirror control ECU connector.

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

Result

RESULT REFERENCE TABLE

J47-5 (CANH) - J17-16 (BAT)

Ignition switch OFF

1 ohms or higher

OK

J47-14 (CANL) - J17-16 (BAT)

J47-5 (CANH) - J17-16 (BAT)

Ignition switch OFF

Below 1 ohms

NG

J47-14 (CANL) - J17-16 (BAT)

Tester Connection

Switch Condition Specified Condition Proceed to

1 ohms or higher

OK

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

Fig. 49: Identifying N8 Outer Mirror Control ECU And J17 DLC3 Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO OUTER MIRROR
CONTROL ECU (CAN, CGND)

OK: REPLACE OUTER MIRROR CONTROL ECU (See DISASSEMBLY )

25. CONNECT CONNECTOR

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

26. CHECK FOR SHORT IN CAN BUS WIRES (COMBINATION METER ECU)

a. Disconnect the J28 combination meter ECU connector.

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

N8-1 (CAN) - N8-21 (CGND) Ignition switch OFF

Below 1 ohms

NG

N8-1 (CAN) - J17-4 (CG)

Ignition switch OFF

1 ohms or higher

OK

N8-21 (CGND) - J17-4 (CG)

N8-1 (CAN) - J17-4 (CG)

Ignition switch OFF

Below 1 ohms

NG

N8-21 (CGND) - J17-4 (CG)

N8-1 (CAN) - J17-16 (BAT)

Ignition switch OFF

1 ohms or higher

OK

N8-21 (CGND) - J17-16 (BAT)

N8-1 (CAN) - J17-16 (BAT)

Ignition switch OFF

Below 1 ohms

NG

N8-21 (CGND) - J17-16 (BAT)

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

Result

RESULT REFERENCE TABLE

Fig. 50: Identifying J17 & J28 Combination Meter ECU Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER
ECU (NO. 3 JUNCTION CONNECTOR - COMBINATION METER ECU)

OK: REPLACE COMBINATION METER ASSEMBLY (See REMOVAL )

27. CONNECT CONNECTOR

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

Tester Connection

Switch Condition Specified Condition Proceed to

J28-22 (CANH) - J28-21 (CANL) Ignition switch OFF

1 ohms or higher

OK

Below 1 ohms

NG

J28-22 (CANH) - J17-4 (CG)

Ignition switch OFF

1 ohms or higher

OK

J28-21 (CANL) - J17-4 (CG)

J28-22 (CANH) - J17-4 (CG)

Ignition switch OFF

Below 1 ohms

NG

J28-21 (CANL) - J17-4 (CG)

J28-22 (CANH) - J17-16 (BAT)

Ignition switch OFF

1 ohms or higher

OK

J28-21 (CANL) - J17-16 (BAT)

J28-22 (CANH) - J17-16 (BAT)

Ignition switch OFF

Below 1 ohms

NG

J28-21 (CANL) - J17-16 (BAT)

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra