Lexus ES manuals

Lexus ES: Vehicle Control History

VEHICLE CONTROL HISTORY

Vehicle Control History

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Part of the control history can be confirmed using the vehicle control history.

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 Parking Support Brake System (for Hv Model)

 Stop Light Relay Circuit (C1A4B)

DESCRIPTION When a stop light relay circuit malfunction signal sent from the electronically controlled brake system is detected by the clearance warning ECU assembly, DTC C1A4B is stored. DTC No.

 ENG / EHV Device (C1A40)

DESCRIPTION When a SFI system malfunction signal sent by the hybrid vehicle control ECU is detected by the clearance warning ECU assembly, DTC C1A40 is stored. DTC No. Detection Item DTC Detect

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 Hybrid/EV Battery Voltage Isolation Sensor Circuit Internal Electronic Failure (P0AA749)

DESCRIPTION The hybrid vehicle control ECU monitors the insulation monitoring circuit located in the battery ECU assembly and detects malfunctions. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P0AA749 Hybrid/EV Battery Voltage Isolation Sensor C

 HV Control System Regenerative Malfunction (C1259,C1310)

DESCRIPTION The skid control ECU (brake booster with master cylinder assembly) communicates with the hybrid vehicle control ECU and controls braking force according to the motor's regenerative force. The skid control ECU (brake booster with master cylinder assembly) sends enhanced-VSC signals to the

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