Toyota Tundra. Manual — part 304

Fig. 139: Identifying J17 & J94 No. 1 Junction Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 1 JUNCTION
CONNECTOR - NO. 2 JUNCTION CONNECTOR)

OK: Go to next step

6. CONNECT CONNECTOR

a. Reconnect the J94 No. 1 junction connector connector.

b. Reconnect the J93 No. 2 junction connector connector.

7. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR -

COMBINATION METER ECU)

a. Disconnect the J84 No. 1 junction connector connector.

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

Result

RESULT REFERENCE TABLE

Tester Connection

Switch Condition Measured Resistance Proceed to

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

Fig. 140: Identifying J84 No. 1 Junction And J17 Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: Go to step 12

OK: Go to next step

8. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - MAIN

BODY ECU)

a. Disconnect the J96 No. 1 junction connector connector.

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

Result

RESULT REFERENCE TABLE

J84-1 (CANH) - J17-4 (CG)

Ignition switch OFF

1 ohms or higher

OK

J84-2 (CANL) - J17-4 (CG)

J84-1 (CANH) - J17-4 (CG)

Ignition switch OFF

Below 1 ohms

NG

J84-2 (CANL) - J17-4 (CG)

Tester Connection

Switch Condition Measured Resistance Proceed to

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

Fig. 141: Identifying J96 No. 1 Junction And J17 Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: Go to step 13

OK: Go to next step

9. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - SKID

CONTROL ECU WITH ACTUATOR)

a. Disconnect the A46 No. 1 junction connector connector.

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

Result

RESULT REFERENCE TABLE

J96-1 (CANH) - J17-4 (CG)

Ignition switch OFF

1 ohms or higher

OK

J96-2 (CANL) - J17-4 (CG)

J96-1 (CANH) - J17-4 (CG)

Ignition switch OFF

Below 1 ohms

NG

J96-2 (CANL) - J17-4 (CG)

Tester Connection

Switch Condition Measured Resistance Proceed to

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

Fig. 142: Identifying A46 No. 1 Junction And J17 Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: Go to step 14

OK: Go to next step

10. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR -

STEERING ANGLE SENSOR)

a. Disconnect the J87 No. 1 junction connector connector.

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

Result

RESULT REFERENCE TABLE

A46-1 (CANH) - J17-4 (CG)

Ignition switch OFF

1 ohms or higher

OK

A46-2 (CANL) - J17-4 (CG)

A46-1 (CANH) - J17-4 (CG)

Ignition switch OFF

Below 1 ohms

NG

A46-2 (CANL) - J17-4 (CG)

Tester Connection

Switch Condition Measured Resistance Proceed to

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra