U1515 moderate

Body Control Module Lost Communication With the Left (Driver-Side) Windshield Wiper Motor Module on the LIN Bus (GM — Chevrolet/GMC/Buick/Cadillac)

The U1515 code means the vehicle's onboard diagnostic system has detected: Body Control Module Lost Communication With the Left (Driver-Side) Windshield Wiper Motor Module on the LIN Bus (GM — Chevrolet/GMC/Buick/Cadillac). This is a moderate severity code.

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Keep driving?
Short distances only
DIY difficulty
hard
Estimated cost
Varies — depends on the specific component this manufacturer-specific code points to on your vehicle. Diagnose before buying parts.

Manufacturer-specific code. U1515 is a manufacturer-specific DTC, so its exact definition can differ by make, model, and year. Use the meaning above as a general guide, and always confirm it against your vehicle manufacturer's official service information (or a make-specific scan tool) before diagnosing or replacing parts.

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What Are the Symptoms of U1515?

  • Check Engine or a related warning light on
  • Exact symptoms depend on the specific system this code covers for your make
  • A make-specific scan reveals which subsystem and circuit is involved

What Causes U1515? (Most Likely First)

  • A fault in the specific component or circuit this code monitors (the exact part varies by manufacturer) High
  • Damaged wiring, a corroded connector, or a poor ground in that circuit Moderate
  • A related sensor or control module reporting or causing the fault Moderate

Can I Still Drive with U1515?

Short distances only. U1515 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.

Frequently Asked Questions

Does U1515 mean the same thing on every vehicle?

No. U1515 is a manufacturer-specific diagnostic trouble code, so its exact meaning varies by make, model, and year. Always confirm it against your vehicle manufacturer's service information before diagnosing or replacing parts.

What does U1515 most likely indicate?

Body Control Module Lost Communication With the Left (Driver-Side) Windshield Wiper Motor Module on the LIN Bus (GM — Chevrolet/GMC/Buick/Cadillac). Treat this as a general guide and verify the specifics for your vehicle.

Mechanics Guide Step-by-step diagnosis

How Do You Diagnose U1515?

  1. Confirm your exact make, model, and year first — U1515 is manufacturer-specific and can mean different things across brands.

  2. Read U1515 with an enhanced/make-specific scan tool and check your manufacturer's official service information for the precise definition and procedure.

  3. Inspect the wiring, connectors, and grounds for the indicated circuit before replacing any part.

Sources 3

This page is built from documented references. Verify against your own service info before repair work.

  • autocodes.comgeneric and Chevrolet pages
  • engine-codes.comU1515 page
  • GM preliminary information bulletin PIT5698A (2020-07-23)indexed against this code by autocodes.com

Which Vehicles Commonly Get U1515?

  • 2015-2025 Hyundai Tucson
  • 2014-2024 Hyundai Sonata
  • 2016-2025 Hyundai Santa Fe
  • 2013-2023 Hyundai Elantra

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