DTC U0423:29/U0423:7B [DYNAMIC STABILITY CONTROL (DSC)]


id0402b2881900

DTC
U0423:29/U0423:7B
Brake fluid level sensor
DETECTION CONDITION
•  U0423:29
―  The signal from the fluid level sensor is not within specification for 0.5 s or more.
•  U0423:7B
―  Brake fluid level remains low for 5 s or more
POSSIBLE CAUSE
•  Decrease in amount of brake fluid
•  Malfunction of brake fluid level sensor
•  Malfunction of instrument cluster
•  Malfunction of BCM

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT BRAKE FLUID LEVEL
•  Inspect brake fluid level.
•  Is it normal?
Yes
Go to next step.
No
Add brake fluid to specified level, then go to Step 3.
2
INSPECT BRAKE FLUID LEVEL SENSOR
•  Switch the ignition to off.
•  Inspect brake fluid level sensor.
•  Is it normal?
Yes
Go to next step.
No
Repair brake fluid level sensor, then go to Next step.
3
INSPECT FOR INSTRUMENT CLUSTER MALFUNCTION
•  Using the M-MDS, perform the DTC inspection for the instrument cluster.
•  Is there DTC displayed?
Yes
Go to the applicable DTC inspection.
No
Go to the next step.
4
VERIFY TROUBLESHOOTING COMPLETED
•  Make sure to reconnected all disconnected connectors.
•  Switch the ignition to ON.
•  Is the same DTC present?
Yes
Replace DSC HU/CM, then go to next step.
No
Go to next step.
5
VERIFY THAT NO OTHER DTCS ARE PRESENT
•  Are any other DTCs output?
Yes
Go to the applicable DTC inspection.
No
DTC troubleshooting completed.