Toyota Tundra (2015 year). Manual — part 2719
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19.
CONNECT CONNECTOR
(a) Reconnect the J74 No. 2 junction connector.
20.
CHECK FOR SHORT TO B+ 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) - J17-16 (BAT)
Ignition switch off
6 kΩ or higher
J123-15 (CA1L) - J17-16 (BAT)
Ignition switch off
6 kΩ 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...
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21.
CONNECT CONNECTOR
(a) Reconnect the J74 No. 2 junction connector.
22.
CHECK FOR SHORT TO B+ 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) - J17-16 (BAT)
Ignition switch off
6 kΩ or higher
A24-11 (CANL) - J17-16 (BAT)
Ignition switch off
6 kΩ 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...
NEXT
RESULT
PROCEED TO
NG
D
B
REPLACE ECM
C
REPLACE ECM
D
REPAIR OR REPLACE CAN MAIN WIRE CONNECTED
TO ECM (CANH, CANL)
A
REPLACE ECM
23.
CONNECT CONNECTOR
(a) Reconnect the J74 No. 2 junction connector.
24.
CHECK FOR SHORT TO B+ IN CAN BUS WIRE (RADIO AND DISPLAY RECEIVER
ASSEMBLY)
(a) Disconnect the J139 radio and display receiver assembly
connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
J139-9 (CANH) - J17-16 (BAT)
Ignition switch off
6 kΩ or higher
J139-10 (CANL) - J17-16 (BAT)
Ignition switch off
6 kΩ or higher
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Short t...
NEXT
Text in Illustration
*a
*b
RESULT
PROCEED TO
OK (for Column Shift Type)
A
OK (for Floor Shift Type)
B
NG
C
B
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY
C
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED
TO RADIO AND DISPLAY RECEIVER ASSEMBLY
(CANH, CANL)
A
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY
25.
CONNECT CONNECTOR
(a) Reconnect the J74 No. 2 junction connector.
26.
CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NAVIGATION RECEIVER ASSEMBLY)
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Short t...
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