U184C
Lost Communication With Instrument Cluster On Low Speed CAN Bus
U184C is an OBD-II diagnostic trouble code meaning: Lost Communication With Instrument Cluster On Low Speed CAN Bus. Common causes: open or short circuit in the can bus, instrument panel unit malfunction. Estimated repair cost: $33–167.
Symptoms
- Dashboard readings do not work or are displayed incorrectly
- Check Engine Light Is On
- No dashboard backlight
- Incorrect operation of other systems connected to the low-speed CAN bus
Causes
- Open or short circuit in the CAN bus
- Instrument panel unit malfunction
- Dashboard power problems
- Corrosion or poor contact in connectors
- Malfunction of another module connected to the same CAN bus
How to Fix
- Check the integrity of the CAN bus wiring
- Check the power and ground of the instrument panel unit
- Inspect connectors for corrosion or damage
- Carry out diagnostics of other modules connected to the low-speed CAN bus
- If necessary, replace the instrument panel unit
Related codes
FAQ
What does the U184C code mean?
U184C is an OBD-II diagnostic trouble code that indicates: Lost Communication With Instrument Cluster On Low Speed CAN Bus
What causes a U184C error code?
The most common causes of U184C include: Open or short circuit in the CAN bus; Instrument panel unit malfunction; Dashboard power problems; Corrosion or poor contact in connectors.
How do I fix a U184C diagnostic trouble code?
To fix U184C: Check the integrity of the CAN bus wiring. Check the power and ground of the instrument panel unit. Inspect connectors for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U184C?
Limited driving only, diagnose soon
How much does it cost to fix U184C?
The estimated repair cost for U184C is $33–167. Actual cost depends on your vehicle, location, and labor rates.
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