Conditions for Setting the DTC
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
P176B Condition 1
TCM has detected the transmission intermediate speed sensor signal of 20 RPM or greater in 1st, 2nd or 3rd gear.
Condition 2
TCM has detected the transmission intermediate speed sensor signal gear slip of 20 RPM or greater in 3rd, 4th, 5th, 6th, 7th or 8th gear.
P176C
TCM has detected a low transmission intermediate speed sensor signal of 0.25 V for 0.05 s.
P176D
TCM has detected a high transmission intermediate speed sensor signal voltage of 4.75 V for 0.05 s.