U0423Invalid Data Received From Instrument Panel Cluster Control Module
- Generic OBD-II code · Network
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- The instrument cluster does more than display: it sends outside temperature, display and chime status or confirmations from its menus to other units. U0423 marks cluster frames that arrive but fail the receiver's checks. In GM's 2025 driver assistance controller EOCM3, 8 of 10 bad frames on chime state, display status or speed limit confirmations set a Special Type C fault that turns adaptive cruise off. Volkswagen's 2014 Touareg book has the engine controller log U0423 when the cluster still reports the ambient temperature start value FEh. Toyota's T-SB-0270-17 for the 2017 iA lists U0423 in the ABS with U0323 and U3000 when battery or display was disconnected; TPMS and TCS/DSC lamps stay on. Honda saw U0423-68 with an auto high beam message on the 2017 CR-V. Ford's 2014 list marks it MIL. U0155 is lost contact.
- What you may notice
- Stability, tire pressure or assistance warnings that cannot be cleared
- Adaptive cruise or auto high beam unavailable
- Check engine light on some makes
- Likely causes
- LikelyBattery, fuse or display disconnected so the cluster sends start values
- PossibleSoftware fault in cluster or receiving module
- RareAnother node on the same bus disturbing the cluster's messages
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €50 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.