Lexus ES: Brake System Control Module "A" Calibration / Parameter Memory Failure (C059746)
DESCRIPTION
If the system information stored by the skid control ECU (brake actuator assembly) is corrupted, this DTC is output.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C059746 | Brake System Control Module "A" Calibration / Parameter Memory Failure | The skid control ECU (brake actuator assembly) is corrupted or cannot be read. | Skid control ECU (brake actuator assembly) |
| Vehicle Condition | |||
|---|---|---|---|
| Pattern 1 | Pattern 2 | ||
| Diagnosis Condition | - | - | - |
| Malfunction Status | The skid control ECU (brake actuator assembly) is corrupted. | ○ | - |
| The skid control ECU (brake actuator assembly) is cannot be read. | - | ○ | |
| Detection Time | - | - | |
| Number of Trips | 1 trip | 1 trip | |
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.
CAUTION / NOTICE / HINT
NOTICE:
After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.
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PROCEDURE
| 1. | REPLACE BRAKE ACTUATOR ASSEMBLY |
(a) Replace the skid control ECU (brake actuator assembly).
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Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a pa
Diagnostic Trouble Code Chart
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Diagnostic Trouble Code Chart
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the parking support alert system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS
NEXT 3. INSPECT AUXILIARY BA
