Thank you so much for this! I just purchased a 1999 3.4 limited 2wd with the same prob. High beams=downshift and power loss. So crazy! So th e board replacement solved the problem correct?
what I did today!
Purchased a 1999 2wd Limited with 180,000 on her. So excited to start cleaning her up. Today I locked the battery down, replaced wiper blades. Goes to Toyota tomorrow for a once over and fluid change. The TO DO list so far...
1. shift selector handle replacement. It comes of...