Toyota Tundra (2015 year). Manual — part 2725
A
9.
CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE (4WD CONTROL ECU)
NOTICE:
For vehicles without a 4WD, go to "Check for Open in One Side CAN Branch Wire (Bus Buffer ECU)".
(a) Disconnect the A25 4WD control ECU connector.
(b) Select "Bus Check" on the Techstream
.
Result
RESULT
PROCEED
TO
"Four Wheel Drive Control" is not displayed on the Techstream
A
Several ECUs and sensors in addition to "Four Wheel Drive Control" are displayed on the
Techstream
B
B
GO TO STEP 11
10.
CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE (4WD CONTROL ECU CAN
BRANCH WIRE)
(a) Disconnect the cable from the negative (-) battery terminal
Wait at least 90 seconds after disconnecting the cable from the
negative (-) battery terminal to disable the SRS system.
NOTICE:
When disconnecting the cable, some systems need to be
initialized after the cable is reconnected
.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
A25-23 (CANH) - A25-22 (CANL)
Ignition switch off
54 to 69 Ω
Text in Illustration
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Open i...
A
*a
NG
REPAIR OR REPLACE CAN BRANCH WIRE OR
CONNECTOR (4WD CONTROL ECU)
OK
REPLACE 4WD CONTROL ECU
11.
CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE (BUS BUFFER ECU)
NOTICE:
For vehicles without a bus buffer ECU, go to "Check for Open in One Side CAN Branch Wire (Network
Gateway ECU)".
(a) Disconnect the J59 bus buffer ECU connector.
(b) Select "Bus Check" on the Techstream
.
Result
RESULT
PROCEED TO
"Accessory Gateway" is not displayed on the Techstream
A
Several ECUs and sensors in addition to "Accessory Gateway" are displayed on the Techstream
B
B
GO TO STEP 13
12.
CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE (BUS BUFFER ECU CAN
BRANCH WIRE)
(a) Disconnect the cable from the negative (-) battery terminal
Wait at least 90 seconds after disconnecting the cable from the
negative (-) battery terminal to disable the SRS system.
NOTICE:
When disconnecting the cable, some systems need to be
initialized after the cable is reconnected
.
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Open i...
A
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
J59-3 (CAN+) - J59-2 (CAN-)
Ignition switch off
54 to 69 Ω
Text in Illustration
*a
NG
REPAIR OR REPLACE CAN BRANCH WIRE OR
CONNECTOR (BUS BUFFER ECU)
OK
REPLACE BUS BUFFER ECU
13.
CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE (NETWORK GATEWAY ECU)
NOTICE:
For vehicles without a blind spot monitor system, go to "Check for Open in One Side CAN Branch Wire
(Brake Control with Bracket Relay)".
(a) Disconnect the J123 network gateway ECU connector.
(b) Select "Bus Check" on the Techstream
.
Result
RESULT
PROCEED TO
"CAN Gateway" is not displayed on the Techstream
A
Several ECUs and sensors in addition to "CAN Gateway" are displayed on the Techstream
B
B
GO TO STEP 15
14.
CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE (NETWORK GATEWAY ECU
CAN BRANCH WIRE)
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Open i...
(a) Disconnect the cable from the negative (-) battery terminal
Wait at least 90 seconds after disconnecting the cable from the
negative (-) battery terminal to disable the SRS system.
NOTICE:
When disconnecting the cable, some systems need to be
initialized after the cable is reconnected
.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
J123-16 (CA1H) - J123-15 (CA1L)
Ignition switch off
54 to 69 Ω
Text in Illustration
*a
NG
REPAIR OR REPLACE CAN BRANCH WIRE OR
CONNECTOR (NETWORK GATEWAY ECU)
OK
REPLACE NETWORK GATEWAY ECU
15.
CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE (BRAKE CONTROL WITH
BRACKET RELAY)
NOTICE:
For vehicles without a trailer brake control system, go to "Check for Open in One Side CAN Branch Wire (Air
Conditioning Amplifier Assembly)".
(a) Disconnect the J156 brake control with bracket relay connector.
(b) Select "Bus Check" on the Techstream
.
Result
RESULT
PROCEED
TO
"Trailer Brake Controller" is not displayed on the Techstream
A
Several ECUs and sensors in addition to "Trailer Brake Controller" are displayed on the
Techstream
B
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Open i...
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