Question

O have the engine code P1633 on my 2001 Toyota Prado, what is the meaning?

Answer 1

HI there

This code points to an issue with the ecm, or the ecm power supply. Here is some info on the code for you.

P1633 TOYOTA - Engine Control Module Malfunction Electric Throttle Control System Circuit

Read more: https://www.autocodes.com/p1633_toyota.html