OBD Guide
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U12AC

Display Temperature Too High

U12AC is an OBD-II diagnostic trouble code meaning: Display Temperature Too High. Common causes: insufficient display ventilation, display cooling system malfunction. Estimated repair cost: $56–222.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • The display turns off temporarily
  • Distortion of the display image
  • Slow display response
  • A warning message appears
  • The display becomes too hot to the touch

Causes

  • Insufficient display ventilation
  • Display cooling system malfunction
  • Extended use of the display at high ambient temperatures
  • Display power problems
  • Malfunction of the display itself

How to Fix

  1. Check the display ventilation system
  2. Inspect display wiring harness and connections
  3. Check the operation of the cooling system
  4. Replace display if necessary
  5. Update display software

Related codes

U12ABU12ADU12AE

FAQ

What does the U12AC code mean?

U12AC is an OBD-II diagnostic trouble code that indicates: Display Temperature Too High

What causes a U12AC error code?

The most common causes of U12AC include: Insufficient display ventilation; Display cooling system malfunction; Extended use of the display at high ambient temperatures; Display power problems.

How do I fix a U12AC diagnostic trouble code?

To fix U12AC: Check the display ventilation system. Inspect display wiring harness and connections. Check the operation of the cooling system. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U12AC?

Limited driving only, diagnose soon

How much does it cost to fix U12AC?

The estimated repair cost for U12AC is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat