Toyota Tundra (2015 year). Manual — part 2730
NEXT
OK
REPLACE AIR CONDITIONING AMPLIFIER
ASSEMBLY
15.
CONNECT CONNECTOR
(a) Reconnect the J74 No. 2 junction connector.
16.
CHECK FOR SHORT TO GND IN CAN BUS WIRE (4WD CONTROL ECU)
(a) Disconnect the A25 4WD control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
A25-23 (CANH) - J17-4 (CG)
Ignition switch off
200 Ω or higher
A25-22 (CANL) - J17-4 (CG)
Ignition switch off
200 Ω or higher
Text in Illustration
*a
*b
REPAIR OR REPLACE CAN BRANCH WIRE
CONNECTED TO 4WD CONTROL ECU (CANH, CANL)
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Short t...
NEXT
OK
REPLACE 4WD CONTROL ECU
17.
CONNECT CONNECTOR
(a) Reconnect the J74 No. 2 junction connector.
18.
CHECK FOR SHORT TO GND IN CAN BUS WIRE (BUS BUFFER ECU)
(a) Disconnect the J59 bus buffer ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
J59-3 (CAN+) - J17-4 (CG)
Ignition switch off
200 Ω or higher
J59-2 (CAN-) - J17-4 (CG)
Ignition switch off
200 Ω or higher
Text in Illustration
*a
*b
REPAIR OR REPLACE CAN BRANCH WIRE
CONNECTED TO BUS BUFFER ECU (CAN+, CAN-)
OK
REPLACE BUS BUFFER ECU
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Short t...
NEXT
19.
CONNECT CONNECTOR
(a) Reconnect the J74 No. 2 junction connector.
20.
CHECK FOR SHORT TO GND IN CAN BUS WIRE (NETWORK GATEWAY ECU)
(a) Disconnect the J123 network gateway ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
J123-16 (CA1H) - J17-4 (CG)
Ignition switch off
200 Ω or higher
J123-15 (CA1L) - J17-4 (CG)
Ignition switch off
200 Ω or higher
Text in Illustration
*a
*b
REPAIR OR REPLACE CAN BRANCH WIRE
CONNECTED TO NETWORK GATEWAY ECU (CA1H,
CA1L)
OK
REPLACE NETWORK GATEWAY ECU
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Short t...
NEXT
21.
CONNECT CONNECTOR
(a) Reconnect the J74 No. 2 junction connector.
22.
CHECK FOR SHORT TO GND IN CAN BUS WIRE (ECM)
(a) Disconnect the A24 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
A24-10 (CANH) - J17-4 (CG)
Ignition switch off
200 Ω or higher
A24-11 (CANL) - J17-4 (CG)
Ignition switch off
200 Ω or higher
Text in Illustration
*a
*b
RESULT
PROCEED TO
OK (for 1UR-FE)
A
OK (for 3UR-FE)
B
OK (for 3UR-FBE)
C
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Short t...
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