HI there
These code are related. The first code is saying there is an issue with the throttle control actuator, the second code means the idle hasn't been learned. If there truck is running fairly normal then you won't need to replace the throttle body. If you cannot get the truck to accelerate, then replace the throttle body and do an idle learn on it.
P2176 HONDA - Throttle Actuator Control System Idle Position Not Learned Read more: https://www.autocodes.com/p2176_honda.html
36.2k questions
32.2k answers
1.3k comments
22.8k users