What Does U0423 Mean?
A control module received invalid or corrupted data from the Instrument Panel Control Module over the vehicle network. This affects gauge operation and display information shared across the network.
Common Causes
35%
Faulty instrument panel control module with internal circuit failure
30%
Damaged wiring or corroded connectors at instrument panel module
20%
CAN bus communication network fault affecting data transmission
10%
Power supply issues or voltage fluctuations to instrument panel
5%
Software corruption or version mismatch in instrument panel module
Diagnostic Steps
1
Step 1: Verify instrument panel control module is responding on network and can be identified by scan tool
2
Step 2: Inspect instrument cluster connectors on back of panel for loose connections, corrosion, or damage
3
Step 3: Test power and ground circuits to instrument panel module with multimeter
4
Step 4: Check CAN bus network signals and verify proper communication between cluster and other modules
5
Step 5: Reprogram instrument panel module if possible, or replace cluster if hardware failure is confirmed
Estimated Repair Cost
$250 - $1,500
Parts + labor, varies by vehicle and location
A control module received invalid or corrupted data from the Instrument Panel Control Module over the vehicle network. This affects gauge operation and display information shared across the network.
The most common cause of U0423 (Invalid Data Received From Instrument Panel Control Module) is: Faulty instrument panel control module with internal circuit failure
Typical repair costs for U0423 range from $250 to $1,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Gauges and warning lights may display incorrectly or not at all. Critical safety warnings like ABS, airbag, or engine lights may not function properly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0423 to identify the root cause.
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Quick Info
Category
Network
System
Instrument Panel / Driver Information
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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