P1556 Lexus -

Question

changed knock sensors on my luxus rx 300 and gave it a tune up but when i started it got a p1556 code!! what did i do! car sounds and rides great! what did i do wrong!!

Answer 1

Hi there,

This code indicates an issue with the reactor temp sensor. Here is some info for you.

P1556 LEXUS - Reactor Temperature Sensor Circuit High

Read more: https://www.autocodes.com/p1556_lexus.html