DESCRIPTION
The skid control ECU (master cylinder solenoid) receives signals from the yaw rate and acceleration (airbag sensor assembly) via the CAN communication system.
The airbag sensor assembly has a built-in yaw rate and acceleration sensor and detects the vehicle's condition using 2 circuits (GL1, GL2).
If there is trouble in the bus lines between the yaw rate and acceleration sensor (airbag sensor assembly) and the CAN communication system, DTCs U0123 (yaw rate sensor communication trouble) and U0124 (acceleration sensor communication trouble) are stored.
These DTCs are also output when calibration has not been completed.
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
C1381 |
At a vehicle speed of more than 3 km/h (2 mph), the acceleration sensor power source malfunction signal is received for 10 seconds or more. |
|
WIRING DIAGRAM
Refer to DTCs C1232, C1243 and C1245 (See page
).
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Check for DTCs (See page
).
Result |
Proceed to |
---|---|
CAN DTC is not output |
A |
CAN DTC is output |
B |
B | ![]() |
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
|
2. |
CHECK HARNESS AND CONNECTOR (IG2, E1, E2 TERMINAL) |
(a) Disconnect the yaw rate and acceleration sensor (airbag sensor assembly) connector.
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A21-25 (E1) - Body ground |
Always |
Below 1 Ω |
A21-26 (E2) - Body ground |
Always |
Below 1 Ω |
*a |
Front view of wire harness connector (to Yaw Rate and Acceleration Sensor (Airbag Sensor Assembly)) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
RECONFIRM DTC |
(a) Reconnect the yaw rate and acceleration sensor (airbag sensor assembly) connector.
(b) Clear the DTCs (See page
).
(c) Start the engine.
(d) Perform a road test.
(e) Check if the same DTC is output (See page
).
Result |
Proceed to |
---|---|
DTC C1381 is not output |
A |
DTC C1381 is output |
B |
A | ![]() |
USE SIMULATION METHOD TO CHECK |
B | ![]() |
REPLACE AIRBAG SENSOR ASSEMBLY |
Installation
INSTALLATION
PROCEDURE
1. INSTALL LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY
(a) Connect the airbag connector.
NOTICE:
When handling the airbag connector, take care not to damage the airbag
wire harness.
(b) Push in the airbag conn ...
Operation Check
OPERATION CHECK
1. CHECK PANEL & STEERING SWITCH
HINT:
The radio and display receiver assembly panel switches and steering
switches are checked in the following procedure.
Illustrations may differ from the actual vehicle screen depending on
the device settings and options. ...
Basic audio operations
Basic audio operations and functions common to each mode are explained in
this section.
Operating the multimedia system
1. Press this button to eject a disc
2. Insert a disc into the disc slot
3.“Select Audio Source” screen appears
4. Turn this knob to select radio station bands, tracks ...