TELEMATICS COMMUNICATION UNIT INSPECTION [TYPE-B]


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1.  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

2.  Remove the following parts:

(1)  Console side panel (See CONSOLE SIDE PANEL REMOVAL/INSTALLATION.)
(2)  Switch panel (See SWITCH PANEL REMOVAL/INSTALLATION.)
(3)  Cup holder (See CUP HOLDER REMOVAL/INSTALLATION.)
(4)  Selector lever knob (See SELECTOR LEVER COMPONENT REMOVAL/INSTALLATION.)
(5)  Shift panel (See SHIFT PANEL REMOVAL/INSTALLATION.)
(6)  Front console box (See FRONT CONSOLE BOX REMOVAL/INSTALLATION.)
(7)  Side wall (See SIDE WALL REMOVAL/INSTALLATION.)
(8)  Rear console (See REAR CONSOLE REMOVAL/INSTALLATION.)

3.  Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION)

4.  Measure the voltage at each terminal.

•  If the voltage is not as specified in the terminal voltage table, inspect the parts under Inspection item (s) and related wiring harnesses.
―  If the system does not work normally even though the inspection items or related wiring harnesses do not have any malfunction, replace the telematics communication unit. (See TELEMATICS COMMUNICATION UNIT REMOVAL/INSTALLATION [TYPE-B].)


Terminal Voltage Table (Reference)

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Terminal

Signal name

Connected to

Measurement conditions

Voltage (V)

Inspection item(s)

1A
1B
1C
1D
1E
1F
1G
1H
1I
1J
1K
1L
1M
1N
1O
GND1
Body ground
Under any condition
1.0 or less
•  Body ground
•  Related wiring harness
1P
1Q
CAN_H
CAN system related module
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
1R
GND3
Body ground
Under any condition
1.0 or less
•  Body ground
•  Related wiring harness
1S
CAN_L
CAN system related module
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
1T
GND4
Body ground
Under any condition
1.0 or less
•  Body ground
•  Related wiring harness
1U
GND2
Body ground
Under any condition
1.0 or less
•  Body ground
•  Related wiring harness
1V
1W
1X
1Y
1Z
1AA
1AB
1AC
1AD
1AE
IG1
SRS1 7.5 A fuse
Switch the ignition ON (engine on or off)
B+
•  SRS1 7.5 A fuse
•  Related wiring harness
Switch the ignition OFF
1.0 or less
1AF
+B
INTERIOR1 15 A fuse
Under any condition
B+
•  INTERIOR1 15 A fuse
•  Battery
•  Related wiring harness
2A
TEL_SIG1
TEL antenna No.1
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2B
GNSS_SIG1
TEL antenna No.1
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
3A
TEL_SIG2
TEL antenna No.2
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
4A
USB1_GND
Connectivity master unit
Under any condition
1.0 or less
•  Connectivity master unit
•  Related wiring harness
4B
USB1_DATA_P
Connectivity master unit
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
4C
USB1_VBUS
Connectivity master unit
Under any condition
Approx. 5.0
•  Connectivity master unit
•  Related wiring harness
4D
USB1_DATA_N
Connectivity master unit
Because this terminal is for communication, determination using terminal voltage inspection is not possible.