DTC U0405:00 [DYNAMIC STABILITY CONTROL (DSC)]

id0402b2893400

DTC
U0405:00
Abnormal message from vehicle control module (V/C-Module)
DETECTION CONDITION
•  Correct data cannot be received from vehicle control module (V/C-Module)
FAIL-SAFE FUNCTION
•  Illuminates the Mazda Radar Cruise Control (MRCC) warning light and Smart Brake Support (SBS) indicator light (amber).
•  Inhibits the Mazda Radar Cruise Control (MRCC) and Smart Brake Support (SBS) controls.
POSSIBLE CAUSE
•  Vehicle control module (V/C-Module) malfunction
SYSTEM WIRING DIAGRAM
Not applicable

Diagnostic procedure

STEP

INSPECTION

ACTION
1
PERFORM VEHICLE CONTROL MODULE (V/C-MODULE) DTC INSPECTION
•  Switch the ignition to off.
•  Using the M-MDS, perform the DTC inspection for the vehicle control module (V/C-Module).
•  Are any DTCs detected?
Yes
Go to applicable DTC inspection.
(See DTC TABLE [VEHICLE CONTROL MODULE (V/C-MODULE)].)
No
Go to the next step.
2
VERIFY THAT THE SAME DTC IS NOT PRESENT
•  Clear the DTCs from the memory.
•  Are the same DTCs present?
Yes
Repeat the inspection from Step 1.
If the malfunction recurs, replace the vehicle control module (V/C-Module), then go to the next step.
(See VEHICLE CONTROL MODULE (V/C-MODULE) REMOVAL/INSTALLATION [MAZDA RADAR CRUISE CONTROL (MRCC) SYSTEM].)
No
Go to the next step.
3
VERIFY THAT NO OTHER DTCS ARE PRESENT
•  Are any other DTCs output?
Yes
Go to the applicable DTC inspection.
(See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)
No
DTC troubleshooting completed.