Toyota Tundra. Manual — part 293
Fig. 98: Identifying J83 No. 1 Junction Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: Go to step 16
OK: REPAIR OR REPLACE NO. 1 JUNCTION CONNECTOR
12. 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.
Result
RESULT REFERENCE TABLE
Tester Connection
Switch Condition Measured Resistance Proceed to
J84-1 (CANH) - J84-2 (CANL) Ignition switch OFF
1 ohms or higher
OK
Below 1 ohms
NG
2009 Toyota Tundra
2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra
Fig. 99: Identifying J84 No. 1 Junction Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER
ECU (CANH, CANL)
OK: REPLACE COMBINATION METER ASSEMBLY (See REMOVAL )
13. CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU)
a. Disconnect the J2 main body ECU 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
J96-1 (CANH) - J96-2 (CANL) Ignition switch OFF
1 ohms or higher
OK
Below 1 ohms
NG
2009 Toyota Tundra
2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra
Fig. 100: Identifying J96 Main Body ECU Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO MAIN BODY ECU
(CANH, CANL)
OK: REPLACE MAIN BODY ECU
14. CHECK FOR SHORT IN CAN BUS WIRES (SKID CONTROL ECU WITH ACTUATOR)
a. Disconnect the A17 skid control ECU with actuator 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
A46-1 (CANH) - A46-2 (CANL) Ignition switch OFF
1 ohms or higher
OK
Below 1 ohms
NG
2009 Toyota Tundra
2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra
Fig. 101: Identifying A46 No. 1 Junction Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SKID CONTROL ECU
WITH ACTUATOR (CANH, CANL)
OK: REPLACE SKID CONTROL ECU WITH ACTUATOR (See REMOVAL )
15. CHECK FOR SHORT IN CAN BUS WIRES (STEERING ANGLE SENSOR)
a. Disconnect the J6 steering angle sensor 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
J87-1 (CANH) - J87-2 (CANL) Ignition switch OFF
1 ohms or higher
OK
Below 1 ohms
NG
2009 Toyota Tundra
2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra
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