23 March, 2025Allison WTEC II Fault Code: 32 PID: SPN: 00 FMI: C3 pressure switch open in low range Main code 32 indicates the transmission gear ratio is correct, but the C3 pressure switch is open when it should be closed. Share on Facebook Opens in a new window. Tweet on Twitter Opens in a new window. Pin on Pinterest Opens in a new window. Back to blog Leave a comment Name * Email * Comment * Please note, comments need to be approved before they are published.