Pinpoint Test F: Output Shaft Speed (OSS) Sensors
WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The transmission control module (TCM) is integrated into the mechatronic assembly. If installing a new transaxle or a mechatronic assembly, the TCM will need to be checked and recalibrated (reflashed) to the latest level calibration available.
- F1 ELECTRONIC DIAGNOSTICS
- Check to make sure the transaxle harness connector is fully seated, pins are fully engaged in connector and in good condition before proceeding.
- Connect the scan tool.
- Key in START position.
- While monitoring PIDs: OSS_A and OSS_B
- Monitor and record speed.
- Do OSS_A and OSS_B equal each other?
Yes: GO to F2.
No: INSTALL a new OSS sensor. REFER to OUTPUT SHAFT SPEED (OSS) SENSOR .
- F2 ELECTRONIC DIAGNOSTICS
- While monitoring PIDs: OSS_A and OSS_B
- Drive the vehicle and record speed.
- Both the OSS_A and OSS_B should read the same.
- Do OSS_A and OSS_B follow the vehicle speed and read the same?
Yes: CLEAR all DTCs. ROAD TEST to verify if concern is not present. If concern is still present or reappears, INSTALL a new mechatronic assembly. REFER to MECHATRONIC ASSEMBLY . (Refer to the NOTE preceding this pinpoint test.)
No: INSTALL a new OSS sensor. REFER to OUTPUT SHAFT SPEED (OSS) SENSOR .