Toyota Tundra. Manual — part 299
Fig. 121: Identifying J83 No. 1 Junction And J17 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 TO B+ IN CAN BUS WIRE (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
J83-2 (CANL) - J17-16 (BAT) Ignition switch OFF
1 ohms or higher
OK
J83-1 (CANH) - J17-16 (BAT)
Ignition switch OFF
Below 1 ohms
NG
J83-2 (CANL) - J17-16 (BAT)
Tester Connection
Switch Condition Measured Resistance Proceed to
J84-1 (CANH) - J17-16 (BAT)
Ignition switch OFF
1 ohms or higher
OK
J84-2 (CANL) - J17-16 (BAT)
2009 Toyota Tundra
2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra
Fig. 122: Identifying J84 No. 1 Junction And J17 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 TO B+ IN CAN BUS WIRE (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
J84-1 (CANH) - J17-16 (BAT)
Ignition switch OFF
Below 1 ohms
NG
J84-2 (CANL) - J17-16 (BAT)
Tester Connection
Switch Condition Measured Resistance Proceed to
J96-1 (CANH) - J17-16 (BAT)
Ignition switch OFF
1 ohms or higher
OK
J96-2 (CANL) - J17-16 (BAT)
2009 Toyota Tundra
2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra
Fig. 123: Identifying J96 No. 1 Junction And J17 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 TO B+ IN CAN BUS WIRE (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
J96-1 (CANH) - J17-16 (BAT)
Ignition switch OFF
Below 1 ohms
NG
J96-2 (CANL) - J17-16 (BAT)
Tester Connection
Switch Condition Measured Resistance Proceed to
A46-1 (CANH) - J17-16 (BAT)
Ignition switch OFF
1 ohms or higher
OK
A46-2 (CANL) - J17-16 (BAT)
2009 Toyota Tundra
2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra
Fig. 124: Identifying A46 No. 1 Junction And J17 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 TO B+ IN CAN BUS WIRE (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
A46-1 (CANH) - J17-16 (BAT)
Ignition switch OFF
Below 1 ohms
NG
A46-2 (CANL) - J17-16 (BAT)
Tester Connection
Switch Condition Measured Resistance Proceed to
J87-1 (CANH) - J17-16 (BAT)
Ignition switch OFF
1 ohms or higher
OK
J87-2 (CANL) - J17-16 (BAT)
2009 Toyota Tundra
2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra
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