DESCRIPTION
This DTC is stored when LIN communication between the sliding roof ECU (sliding roof drive gear sub-assembly) and main body ECU (multiplex network body ECU) stops for 10 seconds or more.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B1273 |
No communication between sliding roof ECU (sliding roof drive gear sub-assembly) and main body ECU (multiplex network body ECU) for 10 seconds or more. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
INSPECT DRIVER SIDE JUNCTION BLOCK |
(a) Remove the driver side junction block (See page
).
(b) Remove the main body ECU (multiplex network body ECU) from the driver side junction block.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1D-12 - MB-16 (LIN2) |
Always |
Below 1 Ω |
*a |
Component without harness connected (Driver Side Junction Block) |
- |
- |
HINT:
This inspection is to check the LIN line in the driver side junction block that connects the wire harness to the built-in main body ECU (multiplex network body ECU).
NG | ![]() |
REPLACE DRIVER SIDE JUNCTION BLOCK |
|
2. |
CHECK HARNESS AND CONNECTOR (DRIVER SIDE JUNCTION BLOCK - SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)) |
(a) Disconnect the 1D driver side junction block connector.
(b) Disconnect the S50 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1D-12 - S50-11 (LIN) |
Always |
Below 1 Ω |
1D-12 or S50-11 (LIN) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) - POWER SOURCE CIRCUIT) |
(a) Disconnect the S50 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
S50-8 (B) - S50-12 (E) |
Always |
11 to 14 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
S50-12 (E) - Body ground |
Always |
Below 1 Ω |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) |
(a) Replace the sliding roof ECU (sliding roof drive gear sub-assembly) (See
page ).
|
5. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page ).
(b) Recheck for DTCs.
OK:
DTC B1273 is not output.
OK | ![]() |
END (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY WAS DEFECTIVE) |
NG | ![]() |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
Power Outlet Socket(for Rear Side)
Components
COMPONENTS
ILLUSTRATION
*1
USB CHARGER SOCKET
-
-
Removal
REMOVAL
PROCEDURE
1. REMOVE REAR CONSOLE BOX ASSEMBLY
Click here
2. REMOVE USB CHARGER SOCKET
(a) Disengage the 4 claws to remove the USB charger soc ...
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Blind Spot Monitor System
DTC Code
Detection Item
See page
C1A45
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DESCRIPTION
The back sonar or clearance sonar switch assembly is installed at the base of
the driver side of the instrument panel.
When the back sonar or clearance sonar switch assembly is turned on, an on signal
is sent to the clearance warning ECU assembly. The intuitive parking assist syste ...