DTC U0402:00 [DYNAMIC STABILITY CONTROL (DSC)]

id0402b2881800

DTC
U0402:00
Abnormal message from PCM (MTX, ATX (FN4A-EL))
Abnormal message from TCM (ATX (FS5A-EL))
DETECTION CONDITION
•  Correct data cannot be received from PCM (MTX, ATX (FN4A-EL))
•  Correct data cannot be received from TCM (ATX (FS5A-EL))
POSSIBLE CAUSE
•  PCM malfunction (MTX, ATX (FN4A-EL))
•  TCM malfunction (ATX (FS5A-EL))

Diagnostic procedure (MTX, ATX (FN4A-EL))

STEP

INSPECTION

ACTION
1
INSPECT FOR PCM MALFUNCTION
•  Switch the ignition to off.
•  Using the M-MDS, perform the DTC inspection for the PCM.
•  Are any DTCs detected?
Yes
Go to applicable DTC inspection.
(See DTC TABLE [ZY, Z6].)
(See DTC TABLE [LF, L5].)
(See DTC TABLE [MZR 2.0 DISI i-stop].)
(See DTC TABLE [L3 Turbo].)
(See DTC TABLE [MZ-CD 1.6 (Y6) (EURO4 emission level)].)
(See DTC TABLE [MZ-CD 1.6 (Y6) (EURO5 emission level)].)
(See DTC TABLE [MZR-CD 2.2].)
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 PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [ZY, Z6].)
(See PCM REMOVAL/INSTALLATION [LF, L5].)
(See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)
(See PCM REMOVAL/INSTALLATION [L3 Turbo].)
(See PCM REMOVAL/INSTALLATION [MZ-CD 1.6 (Y6) (EURO4 emission level)].)
(See PCM REMOVAL/INSTALLATION [MZ-CD 1.6 (Y6) (EURO5 emission level)].)
(See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)
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.

Diagnostic procedure (ATX (FS5A-EL))

STEP

INSPECTION

ACTION
1
INSPECT FOR TCM MALFUNCTION
•  Switch the ignition to off.
•  Using the M-MDS, perform the DTC inspection for the TCM.
•  Are any DTCs detected?
Yes
Go to applicable DTC inspection.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [FS5A-EL].)
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 TCM, then go to the next step.
(See TCM REMOVAL/INSTALLATION [FS5A-EL].)
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.