ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE
NOTE:
For the diagnostic procedure, refer to LAN section. Basic Diagnostic Procedure">
1. OUTLINE OF DIAGNOSIS
Detect malfunction of CAN communication.
Judge as NG when data received from TCM, VDC CM and combination meter is not normal.
2. COMPONENT DESCRIPTION
(Common Specifications)
CAN Protocol 2.0 B (Active)
Frame Format: 11 Bit ID Frame (Standard Frame)
Conforms to ISO11898
Communication Speed: 500 kbps
3. EXECUTION CONDITION
Secondary Parameters | Execution condition |
Battery voltage | ≥ 10.9 V |
4. GENERAL DRIVING CYCLE
Perform the diagnosis continuously after starting the engine.
5. DIAGNOSTIC METHOD
Judge as NG when the following conditions are established.
Malfunction Criteria | Threshold Value |
CAN data from instrument panel cluster control module | Did not change |
Time Needed for Diagnosis: 2 seconds
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
Brake system warning light (red)
The
light illuminates with the parking
brake applied while the ignition switch is
in the "ON" position. It turns off when the
parking brake is fully released.
WARNING
Driving with the brake system
warning light on is dangerous.
This indicates your brake system
may not be working ...
Specification
TELEMATICS SYSTEM (DIAGNOSTICS) > Control Module I/O SignalSPECIFICATION1. DATA COMMUNICATION MODULE (DCM)Terminal No.ContentMeasuring conditionStandardA1 — — — A2 — — — A3LED GREEN — — A4 ←> Chassis groundi-buttoni-button OFF > ON1.6 k? or more > less than 1 ?A ...
Cleaning ventilation grille
Front ventilation inlet grille
Always keep the front ventilation inlet grille
free of snow, leaves, or other obstructions
to ensure efficient heating and defrosting.
Since the condenser is located in front of
the radiator, this area should be kept clean
because cooling performance i ...