Question

Hyundai Sonata 1999 2.4L gives code P1520. What does this mean and how do I fix this?
Thanks in advance

Answer 1

P1520 Generator front terminal

This is part of the charging system The ECM detects the output of the generator (alternator) to the input signal from ECM.which controls idle speed, for charging demands, Check the battery condition, and the charging system , a good charging system will produce 2 volts above battery voltage,

Answer 2

The engine code P1520 indicates a problem with the Generator. Replacing the generator is necessary to repair the problem.

P1520 Hyundai Code - Generator Front Terminal Malfunction
Read more: https://www.autocodes.com/p1520_hyundai.html