Lexus ES: 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
PROCEDURE
(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
(c) Recheck for 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 |
A | | GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM |
B | | USE SIMULATION METHOD TO CHECK |
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PARTS LOCATION ILLUSTRATION *1 SWING GRILLE ACTUATOR ASSEMBLY *2 RADIATOR SHUTTER SUB-ASSEMBLY *3 ECM - - ILLUSTRATION *1 COMBINATION METER ASSEMBLY *2 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - ECU-B NO. 2 FUSE *3 AIR CONDITIONING AMPLIFIER ASSEMBLY *4 HYB
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