DESCRIPTION
The airbag ECU assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition.
The skid control ECU (brake actuator assembly) memorizes the range of the acceleration sensor (airbag ECU assembly) and the range of vehicle speed calculated using each speed sensor.
This DTC is stored when the acceleration sensor (airbag ECU assembly) value is abnormal when the vehicle is accelerating or decelerating.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
DTC Output from |
Note |
---|---|---|---|---|---|---|
C05202A |
Multi-axis Acceleration Sensor Module "A" Signal Stuck In Range |
From the time the vehicle starts off until it stops, the longitudinal acceleration sensor value fluctuates 0.5 m/s2 or less during acceleration/deceleration between 1.47 m/s2 and 12 m/s2, or the value always remains 36% or less of vehicle acceleration for 1 to 2 seconds.* |
Acceleration sensor (airbag ECU assembly) |
Comes on |
Brake/EPB |
|
MONITOR DESCRIPTION
When CAN communication of the yaw rate and acceleration sensor (airbag ECU assembly) is valid, the vehicle is being driven within a certain range of acceleration and deceleration, and the longitudinal acceleration sensor (airbag ECU assembly) signal is a certain value or less for a certain amount of time, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.
MONITOR STRATEGY
Related DTCs |
C051C (Case 3): Longitudinal acceleration sensor constant signal monitoring |
Required Sensors/Components(Main) |
Skid control ECU (brake actuator assembly) Acceleration sensor (airbag ECU assembly) |
Required Sensors/Components(Related) |
Skid control ECU (brake actuator assembly) Acceleration sensor (airbag ECU assembly) |
Frequency of Operation |
Continuous |
Duration |
1 to 2 seconds (depending on driving situation) |
MIL Operation |
2 driving cycles |
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
Monitor runs whenever the following DTCs are not stored |
TMC's intellectual property |
Other conditions belong to TMC's intellectual property |
- |
TYPICAL MALFUNCTION THRESHOLDS
TMC's intellectual property |
- |
COMPONENT OPERATING RANGE
TMC's intellectual property |
- |
CONFIRMATION DRIVING PATTERN
NOTICE:
When performing the normal judgment procedure, make sure that the driver door is closed and is not opened at any time during the procedure.
HINT:
HINT:
[*]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
*: Electric Parking Brake System
HINT:
PROCEDURE
1. |
REPLACE AIRBAG ECU ASSEMBLY |
Click here
NEXT |
END |