Toyota Tundra (2015 year). Manual — part 2728
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PROCEDURE
1.
PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the
battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice
before proceeding with work
.
2.
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
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
.
3.
CHECK FOR SHORT TO GND IN CAN BUS WIRE (DLC3 CAN BRANCH WIRE)
(a) Disconnect the J75 No. 1 junction connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Short t...
OK
NEXT
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
J17-6 (CANH) - J17-4 (CG)
Ignition switch off
200 Ω or higher
J17-14 (CANL) - J17-4 (CG)
Ignition switch off
200 Ω or higher
Text in Illustration
*a
REPAIR OR REPLACE CAN BRANCH WIRE
CONNECTED TO DLC3 (CANH, CANL)
4.
CONNECT CONNECTOR
(a) Reconnect the J75 No. 1 junction connector.
5.
CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR)
(a) Disconnect the J74 No. 2 junction connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
J17-6 (CANH) - J17-4 (CG)
Ignition switch off
200 Ω or higher
J17-14 (CANL) - J17-4 (CG)
Ignition switch off
200 Ω or higher
Text in Illustration
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Short t...
OK
OK
*a
GO TO STEP 27
6.
CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - AIR
CONDITIONING AMPLIFIER ASSEMBLY)
(a) Measure the resistance according to the value(s) in the
table below.
Standard Resistance:
TESTER CONNECTION
SWITCH
CONDITION
SPECIFIED
CONDITION
J74-1 (CANH) - J17-4
(CG)
Ignition switch off
200 Ω or higher
J74-12 (CANL) - J17-4
(CG)
Ignition switch off
200 Ω or higher
Text in Illustration
*a
*b
GO TO STEP 13
7.
CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - 4WD
CONTROL ECU)
NOTICE:
For vehicles without a 4WD, go to "Check for Short to GND in CAN Bus Wire (No. 2 Junction Connector - Bus
Buffer ECU)".
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Short t...
OK
(a) Measure the resistance according to the value(s) in the
table below.
Standard Resistance:
TESTER CONNECTION
SWITCH
CONDITION
SPECIFIED
CONDITION
J74-2 (CANH) - J17-4
(CG)
Ignition switch off
200 Ω or higher
J74-13 (CANL) - J17-4
(CG)
Ignition switch off
200 Ω or higher
Text in Illustration
*a
*b
GO TO STEP 15
8.
CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - BUS
BUFFER ECU)
NOTICE:
For vehicles without a bus buffer ECU, go to "Check for Short to GND in CAN Bus Wire (No. 2 Junction
Connector - Network Gateway ECU)".
(a) Measure the resistance according to the value(s) in the
table below.
Standard Resistance:
TESTER CONNECTION
SWITCH
CONDITION
SPECIFIED
CONDITION
J74-5 (CANH) - J17-4
(CG)
Ignition switch off
200 Ω or higher
J74-16 (CANL) - J17-4
(CG)
Ignition switch off
200 Ω or higher
Text in Illustration
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Short t...
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