How to Troubleshoot P0720 OBD2 Code in 1997 Mercury Grand Marquis
I'm trying to identify whether the P0720 fault code in my 1997 Mercury Grand Marquis is related to the output speed sensor or the transmission speed sensor. The P0720 code indicates a problem with the transmission input or output speed sensor, and I want to confirm which sensor is involved to proceed with proper diagnosis.
The issue is likely related to the output shaft speed sensor in the 1997 Mercury Grand Marquis. This sensor provides input for the transmission control module to monitor gear position and engine load.