DTC U0423 [INFORMATION DISPLAY/MULTI INFORMATION DISPLAY]

id0902k0936000

DESCRIPTION

Invalid data received from instrument cluster
DETECTION CONDITION
•  Information display/multi information display receives invalid signal of vehicle speed data from the instrument cluster for 5 s or more, while the ignition is ON.
POSSIBLE CAUSE
•  PCM DTC is stored
•  Instrument cluster DTC is stored
•  Information display/multi information display malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
CONFIRM PCM DTC
•  Perform the DTC Reading Procedure to confirm the PCM DTC.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [LF, L5].)
(See DTC TABLE [ZY, Z6].)
(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].)
(See DTC TABLE [L3 Turbo].)
(See DTC TABLE [MZR 2.0 DISI i-stop].)
No
Go to the next step.
2
CONFIRM INSTRUMENT CLUSTER DTC
•  Perform the “DTC INSPECTION” to confirm the instrument cluster DTC.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [INSTRUMENT CLUSTER].)
No
Go to the next step.
3
VERIFY TROUBLESHOOTING COMPLETED
•  Clear the DTC from information display/multi information display using the M-MDS.
•  Switch the ignition to ON.
•  Perform the “DTC INSPECTION” to confirm the information display/multi information display DTC.
•  Is the same DTC present?
Yes
Replace the information display/multi information display, then go to the next step.
(See INFORMATION DISPLAY REMOVAL/INSTALLATION.)
(See MULTI INFORMATION DISPLAY REMOVAL/INSTALLATION.)
No
Go to the next step.
4
VERIFY THAT NO OTHER DTCs ARE PRESENT
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [INFORMATION DISPLAY/MULTI INFORMATION DISPLAY].)
No
DTC troubleshooting completed.