Lexus ES: Diagnostic Trouble Code Chart
Lexus ES (XZ10) Service Manual / Engine & Hybrid System / Cruise Control / Front Radar Sensor System (for Gasoline Model) / Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Front Radar Sensor System| DTC No. | Detection Item | Link |
|---|---|---|
| C1A1100 | Front Radar Sensor Optical Axis Misalignment Malfunction | |
| C1A8C46 | Main Microcomputer in Front Radar Sensor Calibration/Parameter Memory Failure | |
| C1A8D1C | Power Supply Circuit in Front Radar Sensor Circuit Voltage Out of Range | |
| C1A9000 | Malfunction of Millimeter-wave Circuit in Front Radar Sensor | |
| C1A9100 | Malfunction of Acceleration Sensor in Front Radar Sensor | |
| U010487 | Lost Communication with Cruise Control Module Missing Message | |
| U030557 | Software Incompatibility with Cruise Control Module Invalid/Incompatible Software Component | |
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Vehicle Control History
VEHICLE CONTROL HISTORY NOTICE: When checking the Vehicle Control History, make sure to record the output codes. Then, clear the Vehicle Control History (RoB) and check it again. CHECK VEHICLE CONTROL
Front Radar Sensor Optical Axis Misalignment Malfunction (C1A1100)
DESCRIPTION The millimeter wave radar sensor assembly performs self-diagnosis to check for misalignment of its beam axis. If misalignment is detected, the millimeter wave radar sensor assembly stores
Main Microcomputer in Front Radar Sensor Calibration/Parameter Memory Failure (C1A8C46,C1A8D1C,C1A9000,C1A9100)
DESCRIPTION When an internal malfunction is detected in the millimeter wave radar sensor assembly, a DTC is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1A8C46 M
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Stop Light Control Relay Malfunction (C1380)
DESCRIPTION When any of the following conditions are met, the skid control ECU (brake booster with master cylinder assembly) sets the drive output (STPO) ON which operates the stop light control relay (stop light switch assembly) and turns on the stop lights. Illumination Conditions:
Pre-collisio
Replacement
REPLACEMENT CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during rear axle hub bolt removal/installation are shown below. Necessary Procedures After Parts Removed/I
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