Lexus ES: Multi-axis Acceleration Sensor Module "A" Signal Stuck In Range (C05202A)
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.
If the range of the acceleration sensor (airbag ECU assembly) and the range of vehicle speed calculated using each speed sensor are judged to be abnormal when compared to their past memorized range, this DTC is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C05202A | Multi-axis Acceleration Sensor Module "A" Signal Stuck In Range | The memorized range (longitudinal) of the acceleration sensor (airbag ECU assembly) is judged to be abnormal when compared to its past memorized range. | Acceleration sensor (airbag ECU assembly) |
CAUTION / NOTICE / HINT
NOTICE:
After replacing or reinstalling the yaw rate and acceleration sensor (airbag ECU assembly), perform acceleration sensor zero point calibration and store system information memorization after performing "Reset Memory".
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PROCEDURE
| 1. | REPLACE AIRBAG ECU ASSEMBLY |
(a) Replace the yaw rate and acceleration sensor (airbag ECU assembly).
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| NEXT |  | END |
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DESCRIPTION The skid control ECU (brake actuator assembly) compares the calculated steering angle value based on the yaw rate sensor value with the actual steering angle value of the steering sensor.
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DESCRIPTION The skid control ECU (brake actuator assembly) determines the steering angle value based on data obtained from the steering sensor, yaw rate and acceleration sensor (airbag ECU assembly).
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DESCRIPTION The master cylinder pressure sensor is connected to the skid control ECU in the brake actuator assembly. DTC No. Detection Item DTC Detection Condition Trouble Area C05401C
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE: Before replacing the main body ECU (multiplex network body ECU), refer to Registration. Click here HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed i
Assist Map Number Un-Writing (C1581)
DESCRIPTION This DTC will be stored if the power steering ECU (rack and pinion power steering gear assembly) determines that the assist map is not written in the ECU. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition Note C1581
