Warning lamp and store Diagnostic Trouble Code (DTC) P2B59F0, which relates to the Integrated Thermal...

Bulletin number

26-EM-009H TSB

Component

Electrical system

Summary

Some Sonata (DN8) and Tucson (NX4/NX4A/NX4M) vehicles equipped with the 2.5L Theta III GDI engine may display a warning lamp and store Diagnostic Trouble Code (DTC) P2B59F0, which relates to the Integrated Thermal Management Module (ITM) circuit due to a logic error. This bulletin provides instructions to update the Engine Control Module (ECM) logic to correct this condition.

Owners of these vehicles have filed 110 complaints in the electrical category.