Lexus ES: Brake System (C1A50)
DESCRIPTION
When an electronically controlled brake system malfunction signal sent from the skid control ECU is detected by the clearance warning ECU assembly, DTC C1A50 is stored.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
C1A50 | Brake System | When the power switch on (IG), a VSC warning light malfunction signal is detected for 1 second or more. | -
Electronically controlled brake system
-
Clearance warning ECU assembly
|
CAUTION / NOTICE / HINT
PROCEDURE
(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 C1A50 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 C1A50 will not be output again.
-
If DTC C1A50 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 C1A50 is output | A |
DTC C1A50 is not output | B |
A | | GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM |
B | | USE SIMULATION METHOD TO CHECK |
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