P1529 – Hyundai DTC

Hyundai DTC P1529 – Transmission control module (TCM) – communication

DTC P1529 meaning on Hyundai

DTC P1529 on a Hyundai refers to a fault in the communication between the Transmission Control Module (TCM) and the Engine Control Module (ECM). This code indicates a problem with the communication network that allows these modules to exchange data.

Hyundai DTC P1529 symptoms

Symptoms of DTC P1529 on a Hyundai may include:

  • Check Engine Light illuminated on the dashboard
  • Transmission shifting issues
  • Reduced fuel efficiency
  • Vehicle may go into “limp mode” for protection

Hyundai DTC P1529 causes

Common causes of DTC P1529 on a Hyundai include:

  • Faulty TCM or ECM
  • Corroded or damaged wiring/connectors in the communication network
  • Software issues in the TCM or ECM

Hyundai DTC P1529 seriousness

DTC P1529 should be addressed promptly as it can lead to drivability issues and potential damage to the transmission system. Ignoring this code may result in further complications and costly repairs.

How to diagnose DTC P1529 on Hyundai

To diagnose DTC P1529 on a Hyundai, a mechanic can perform the following steps:

  1. Use a diagnostic scanner to retrieve the trouble codes
  2. Inspect the TCM and ECM for any visible damage
  3. Check the wiring and connectors for corrosion or breaks
  4. Perform a communication network test to identify any faults

How to fix DTC P1529 on Hyundai

To fix DTC P1529 on a Hyundai, the following steps can be taken:

  1. Repair or replace any damaged wiring or connectors
  2. Update the software in the TCM and ECM if necessary
  3. Replace the TCM or ECM if found to be faulty
  4. Clear the trouble codes and test drive the vehicle to ensure the issue is resolved

How to erase DTC P1529 on Hyundai

To erase DTC P1529 on a Hyundai, follow these steps:

  1. Use a diagnostic scanner to clear the trouble codes
  2. Disconnect the battery for a few minutes to reset the system
  3. After performing the necessary repairs, clear the codes again to ensure they do not return

Recommended tools for Hyundai diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.