DTC U2023 [INSTRUMENT CLUSTER]

id0902e8595600

DTC U2023

Correct data cannot be received from other module
DETECTION CONDITION
•  Correct data cannot be received from PCM
•  Correct data cannot be received from keyless control module
POSSIBLE CAUSE
•  PCM malfunction
•  Keyless control module malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
INSPECT FOR PCM AND KEYLESS CONTROL MODULE MALFUNCTION
•  Turn the ignition switch to LOCK position.
•  Using the M-MDS, perform the DTC inspection for the PCM and keyless control module.
•  Are any DTCs detected?
Yes
Go to applicable DTC inspection.
(See DTC TABLE [MZI-3.7 (PCM CONNECTOR (2 TYPES))].)
(See DTC TABLE [MZI-3.7 (PCM CONNECTOR (3 TYPES))].)
(See DTC TABLE [ADVANCED KEYLESS ENTRY AND START SYSTEM].)
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 or keyless control module, then go to the next step.
(See PCM REMOVAL/INSTALLATION [MZI-3.7].)
(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND START 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 DTC INSPECTION [INSTRUMENT CLUSTER].)
No
DTC troubleshooting completed.