Lexus ES manuals

Lexus ES: Wheel Speed Sensor Malfunction (C164D)

DESCRIPTION

This DTC is stored when the clearance warning ECU assembly receives a wheel speed sensor (front speed sensor RH or front speed sensor LH, rear speed sensor RH or rear speed sensor LH) abnormality signal from the electronically controlled brake system via CAN communication.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C164D

Wheel Speed Sensor Malfunction

Front wheel speed sensor malfunction

Electronically controlled brake system

CAUTION / NOTICE / HINT

NOTICE:

  • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

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  • After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).

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PROCEDURE

1.

CHECK DTC OUTPUT

(a) Using the Techstream, check for DTCs according to the prompts on the screen.

HINT:

After turning the power switch from off to on (IG), wait 4 seconds or more before checking for DTCs.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

(b) Clear the DTCs according to the screen on the Techstream.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs

(c) Recheck for DTCs.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

HINT:

  • DTC C164D is stored when a malfunction signal sent from the electronically controlled brake system is detected.
  • If the malfunctioning part has been repaired or replaced before rechecking for DTCs, DTC C164D will not be output again.
  • If DTC C164D is output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs.

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Result

Proceed to

DTC C164D is output

A

DTC C164D is not output

B

A

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

B

USE SIMULATION METHOD TO CHECK

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DESCRIPTION When a stop light switch assembly circuit malfunction signal sent from the electronically controlled brake system is detected by the clearance warning ECU assembly, DTC C164E is stored.

 Brake Hydraulic Pressure Malfunction (C164F)

DESCRIPTION When a malfunction signal sent from the skid control ECU via CAN communication is detected by the clearance warning ECU assembly, DTC C164F is stored. DTC No. Detection Item DTC Det

 Open or Short in Steering Angle Sensor +B (C1625)

DESCRIPTION This DTC is stored if the clearance warning ECU assembly receives a signal via CAN communication from the steering sensor that indicates a power supply problem. DTC No. Detection Item

SEE MORE:

 Components

COMPONENTS ILLUSTRATION *1 COWL SIDE TRIM BOARD LH *2 FRONT DOOR OPENING TRIM COVER LH *3 FRONT DOOR SCUFF PLATE LH *4 FUEL LID OPENER SWITCH (TRUNK AND FUEL SWITCH ASSEMBLY) *5 INSTRUMENT SIDE PANEL LH *6 LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY *7 NO. 1

 On-vehicle Inspection

ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT CAUTION: To prevent injury due to contact with an operating V-ribbed belt or cooling fan, keep your hands and clothing away from the V-ribbed belt and cooling fans when working in the engine compartment with the engine running or the engine switch on (I

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