DTC U0422:00/U0428:62/U0428:64 [DYNAMIC STABILITY CONTROL (DSC)]

id0402b2884300

DTC
U0422:00, U0428:62, U0428:64
Abnormal message from BCM
DETECTION CONDITION
•  U0422:00 (data error in the signal which BCM sends to the DSC HU/CM)
―  Error in steering angle signal which BCM sends to CAN occurs for 500 ms or more
•  U0428:62 (steering wheel angle neutral position detection error)
―  malfunction on DSC HU/CM or BCM side
―  Any of the following conditions is detected
•  After switch the ignition to ON, DSC HU/CM cannot confirm steering wheel angle neutral position even if 30 s have elapsed at vehicle speed of 12.6 km/h or more, or 3 s have elapsed at vehicle speed of 50 km/h or more
•  After switch the ignition to ON, steering angle signal reset signal which BCM sends is detected
•  U0428:64 (steering angle signal comparison malfunction)
―  BCM does not detect malfunction, however, DSC HU/CM determines there is an error in signal sent from BCM
―  When comparing with estimated steering angle calculated from DSC HU/CM and steering angle signal which BCM sends to CAN, DSC HU/CM determines that the difference exceeds specification (Value which detects malfunction differs depending on driving conditions)
POSSIBLE CAUSE
•  BCM malfunction
•  DSC HU/CM malfunction
•  Vehicle traveled on surface such as a road bank
•  Steering angle sensor signal error

Diagnostic procedure

STEP

INSPECTION

ACTION
1
INSPECT FOR BCM MALFUNCTION
•  Switch the ignition to off.
•  Using the M-MDS, perform the DTC inspection for the BCM.
•  Are any DTCs detected?
Yes
Go to applicable DTC inspection.
(See DTC TABLE [BCM].)
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 BCM, then go to the next step.
(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [L.H.D.].)
(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [R.H.D.].)
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.