Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Brake Hydraulic Pressure Malfunction (C164F)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Audio, Visual, Telematics / Park Assist / Monitoring / Intelligent Clearance Sonar System(for Gasoline Model) / 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 Detection Condition	Trouble Area
C164F	Brake Hydraulic Pressure Malfunction	Brake master cylinder brake fluid pressure abnormal	Electronically controlled brake system

CAUTION / NOTICE / HINT

NOTICE:

After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) 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 engine 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

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

HINT:

DTC C164F 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 C164F will not be output again.
If DTC C164F is output frequently, duplicate the conditions that cause the problem symptoms and perform troubleshooting again, even though the DTC was not output when rechecking for DTCs.
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Result	Proceed to
DTC C164F is output	A
DTC C164F is not output	B

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

USE SIMULATION METHOD TO CHECK

Stop Switch Circuit Malfunction (C164E)

Vehicle Information Unmatched (C168D)

See More:

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