OBD Guide
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U1510

Lost Communication With HVAC Control Module

U1510 is an OBD-II diagnostic trouble code meaning: Lost Communication With HVAC Control Module. Common causes: break in the can bus, hvac module malfunction. Estimated repair cost: $56–278.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Climate control does not work
  • HVAC control panel not responding
  • Check Engine Light Is On
  • Fan runs at one speed
  • No heating/cooling

Causes

  • Break in the CAN bus
  • HVAC module malfunction
  • Wiring harness damage
  • Oxidation of contacts
  • Blown fuse

How to Fix

  1. Check HVAC module fuses
  2. Inspect the wiring harness for damage
  3. Check the integrity of the CAN bus
  4. Diagnose HVAC module
  5. Replace the faulty module if necessary

Related codes

U1500U1511U1512

FAQ

What does the U1510 code mean?

U1510 is an OBD-II diagnostic trouble code that indicates: Lost Communication With HVAC Control Module

What causes a U1510 error code?

The most common causes of U1510 include: Break in the CAN bus; HVAC module malfunction; Wiring harness damage; Oxidation of contacts.

How do I fix a U1510 diagnostic trouble code?

To fix U1510: Check HVAC module fuses. Inspect the wiring harness for damage. Check the integrity of the CAN bus. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1510?

Yes, but get it checked soon

How much does it cost to fix U1510?

The estimated repair cost for U1510 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat