Ford Fusion: Power Transfer Unit - 6-Speed Automatic Transmission – 6F35 / Power Transfer Unit - Overview. Description and Operation
The AWD system consists of the following:
- Power Transfer Unit (PTU)
- Rear driveshaft
- AWD control module
- Rear axle with coupling device
The Power Transfer Unit (PTU) is a gearbox that attaches to the transmission. The PTU directs power to the rear driveshaft through a helical gear spline coupled to the transmission differential case and hypoid/helical ring gear assembly and pinion set. It supplies torque to the rear axle through the rear driveshaft. The AWD control module is an electronic device which controls the rear axle coupling to apply the torque generated from the Power Transfer Unit (PTU) to the rear wheels when required. On AWD vehicles the intermediate shaft passes through the PTU and engages the differential side gears. The serviceability of the Power Transfer Unit (PTU) is limited to the input shaft seal LH, input shaft seal RH, intermediate shaft seal, transfer case rear seal, cover seal, face seal, vent hose and the output flange deflector. If any internal damage is present the Power Transfer Unit (PTU) must be replaced as a sealed unit.
Power Transfer Unit (PTU) Exploded View
| 1 | Output flange nut |
| 2 | Output flange |
| 3 | Deflector |
| 4 | Transfer case rear seal |
| 5 | Outer output shaft tapered roller bearing |
| 6 | Outer output shaft tapered roller bearing shim |
| 7 | Input Shaft Seal LH |
| 8 | Transfer case vent |
| 9 | PTU (power transfer unit) housing |
| 10 | Input shaft |
| 11 | Input shaft bushing |
| 12 | Input shaft outer bearing |
| 13 | Input shaft outer bearing shim |
| 14 | O-ring cover seal |
| 15 | PTU cover |
| 16 | PTU cover bolts (9) |
| 17 | Intermediate shaft seal |
| 18 | PTU fill plug |
| 19 | Input shaft seal RH |
| 20 | Output shaft |
| 21 | Inner output shaft tapered roller bearing |
| 22 | Inner output shaft tapered roller bearing shim |
| 23 | PTU drain plug |
| 24 | Face seal |
| 25 | Input shaft inner bearing |
| 26 | Input shaft inner bearing shim |
| 27 | Identification tag |
Power Transfer Unit. Diagnosis and Testing
Principles of Operation
The AWD system may be referred to as a 4WD system in other service information and owner literature or messages located on the message center...
Other information:
Ford Fusion 2013–2020 Service Manual: Pinpoint Test - DTC: D. Diagnosis and Testing
B0005:11, B0005:12, B0005:13 and B0005:1A Refer to Wiring Diagrams Cell 46 for schematic and connector information. Normal Operation and Fault Conditions The RCM continuously monitors the collapsible steering column circuits for the following faults: Resistance out of range Unexpected voltage Short to ground Faulted collapsible steering column If a fault ..
Ford Fusion 2013–2020 Service Manual: Parking Brake - Overview. Description and Operation
Overview The parking brake system uses 2 switch activated, Electronic Control Unit (ECU) controlled motors to apply and release the rear brake calipers. The ABS module controls and monitors the parking brake system and sets Diagnostic Trouble Codes (DTCs) when a fault is present in the system. The IPC illuminates the parking brake warning indicator and displays a message in the message cen..
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Power Door Locks
The power door lock control is on the driver and front passenger door panels.
