Question

1998 Nissan Frontier with engine code P17768, the overdrive doesn't work when I push that button at the shifter. OD light stayed off

Answer 1

Hi there

This code points to an issue with the torque converter clutch solenoid. This could be the result of low or dirty transmission fluid. Here is some info on the code for you.

P1776 NISSAN - Ignition Retard Request Duration Fault
Read more: https://www.autocodes.com/p1776_nissan.html