Pinpoint Test M : DTC P0735
WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
- Normal Operation and Fault Conditions
The PCM monitors clutch applications for all gears. It sets a DTC if it detects a ratio error but is unable to detect which clutch caused the issue. The transmission logic disables the gear in question. If multiple incorrect gear ratio diagnostic trouble codes (DTCs) are set, look for a common clutch involved in the operation of those gear applications. If no common clutch errors are found, look for line pressure or pump pressure issues.
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition PCM P0735:00 Gear 5 Incorrect Ratio: No Sub Type Information The TCM detected a ratio error either in or while shifting to fifth gear. The ratio error did not last long enough for the PCM to isolate the fault to a specific clutch. The logic disabled fifth gear for the remainder of the key cycle in which the fault occurred. Possible Sources
- Transmission fluid contamination
- Low line pressure
- Direct clutch stuck off or slipping
- Overdrive clutch slipping
- Forward clutch stuck on
- M1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
- Ignition ON.
- Using a diagnostic scan tool, clear the DTC from the PCM.
- Road test the vehicle. REFER to: Road Testing Vehicle .
- Using a diagnostic scan tool, retrieve all continuous memory diagnostic trouble codes (CMDTCs) from the PCM.
Is DTC P0735 present in the PCM?
Yes Check the direct clutch for a does not apply condition, or for a slipping condition. REFER to: Direct Clutch Assembly . Check the overdrive clutch for a slipping condition. REFER to: Overdrive Clutch Assembly . Check the forward clutch for an always applied condition. REFER to: Forward Clutch Assembly . No The fault is not present at this time and may be intermittent.