Toyota Tundra (2015 year). Manual — part 2704
Last Modified: 9-16-2014
6.6 J
Doc ID: RM000004Q5I00CX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Audio Receiver Assembly Communication Stop
Mode; 2015 MY Tundra [08/2014 - ]
Audio Receiver Assembly Communication Stop Mode
DESCRIPTION
DETECTION CONDITION
SYMPTOMS
TROUBLE AREA
Audio Receiver Assembly
Communication Stop
Mode
Either condition is met:
"Display and Navigation (AVN1)" is
not displayed on the "Bus Check"
screen.
"Audio Receiver Assembly
Communication Stop Mode" in "DTC
Combination Table" applies.
Power source or inside of
radio and display receiver
assembly
Radio and display
receiver assembly CAN
branch wire or connector
Radio and display
receiver assembly
For vehicles an audio and visual system.
WIRING DIAGRAM
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Audio ...
NEXT
INSPECTION PROCEDURE
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
HINT:
Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication
with the CAN, which causes resistance variation.
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
.
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Audio ...
NEXT
OK
2.
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
(a) Disconnect the cable from the negative (-) battery terminal before measuring the resistances of
the CAN main wire and the CAN branch wire.
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 OPEN IN CAN BUS WIRE (RADIO AND DISPLAY RECEIVER ASSEMBLY
CAN BRANCH WIRE)
(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) - J139-10 (CANL)
Ignition switch off
54 to 69 Ω
Text in Illustration
*a
NG
REPAIR OR REPLACE RADIO AND DISPLAY
RECEIVER ASSEMBLY CAN BRANCH WIRE OR
CONNECTOR (CANH, CANL)
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Audio ...
4.
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY -
BATTERY AND BODY GROUND)
(a) Connect the cable to the negative (-) battery terminal.
NOTICE:
When disconnecting the cable, some systems need to be
initialized after the cable is reconnected
.
(b) Disconnect the J137 radio and display receiver assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J137-7 (GND1) - Body ground
Always
Below 1 Ω
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J137-4 (+B1) - Body ground
Always
11 to 14 V
J137-3 (ACC1) - Body ground
Ignition switch ACC
11 to 14 V
J139-1 (IG) - Body ground
Ignition switch ON
11 to 14 V
Text in Illustration
*a
Result
RESULT
PROCEED TO
OK (for Column Shift Type)
A
OK (for Floor Shift Type)
B
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Audio ...
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