Four Wheel Drive (4WD) Systems: Specifications Ford Fusion I рестайлинг

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

The All-Wheel Drive (AWD) system consists of the following

1. Power Transfer Unit (PTU)
2. Rear driveshaft
3. 4X4 control module (coupling device control module) (located behind the RH side instrument panel)
4. Rear axle with coupling device

Torque from the engine is transferred through the transaxle to the PTU. This torque is transferred from the driveshaft to the rear axle, which drives the rear halfshafts. The AWD system, referred to as an Active Torque Coupling (ATC) system, is always active and requires no driver input.

The AWD system continuously monitors vehicle conditions and automatically adjusts the torque distribution between the front and rear wheels. During normal operation, most of the torque is delivered to the front wheels. If wheel slip between the front and rear wheels is detected, or if the vehicle is under heavy acceleration, the AWD system increases torque to the rear wheels to prevent or control wheel slip.

Serviceable components of the PTU are limited to the output shaft seal and flange, intermediate shaft seal and deflector, and the PTU-transaxle compression seal. No internal components are serviced. There should be no need to remove the PTU cover. If any of the internal geared components, bearings, case cover or shafts are worn or damaged, a new PTU must be installed.

Special Tools Illustration Tool Name Tool Number 73III Automotive Meter 105-R0057 or equivalent Flex Probe Kit 105-R025C Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool

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Pinpoint Test D: DTCs P1824/P1825 - 4-Wheel Drive Clutch Relay Circuit Failure/4-Wheel Drive Clutch Relay Open Circuit or Inadequate Torque at Rear Wheels

Refer to SYSTEM WIRING DIAGRAMS article for Fusion, SYSTEM WIRING DIAGRAMS article for Milan or SYSTEM WIRING DIAGRAMS article for MKZ, All Wheel Drive (AWD) for schematic and connector information.

Note. Carry out a thorough inspection and verification as outlined before carrying out this pinpoint test.

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1. D1 CHECK FOR 4X4 CONTROL MODULE DTCs Key in ON position. Carry out the 4X4 control module self-test. Are any DTCs received? YES : For DTC P1824 or P1825, go to D2 . For all other DTCs, REFER to the «DTC Charts»(ref-291929-S23724993012008073000000) . NO : Go to D2 .
2. D2 CHECK CIRCUITS CCF21 (VT/WH) AND RCF21 (WH/VT) FOR A SHORT TO GROUND WITH ATC SOLENOID (PART OF REAR AXLE) CONNECTED Key in OFF position. Disconnect: 4X4 Control Module C3253 Measure the resistance between 4X4 control module C3253-8, circuit CCF21 (VT/WH), harness side and ground; and between 4X4 control module C3253-16, circuit RCF21 (WH/VT), harness side and ground. Are the resistances greater than 10,000 ohms? YES : Go to D5 . NO : Go to D3 .
3. D3 CHECK CIRCUITS CCF21 (VT/WH) AND RCF21 (WH/VT) FOR A SHORT TO GROUND WITH C3051 DISCONNECTED Disconnect: ATC Solenoid Jumper Harness C3051 Measure the resistance between 4X4 control module C3253-8, circuit CCF21 (VT/WH), harness side and ground; and between 4X4 control module C3253-16, circuit RCF21 (WH/VT), harness side and ground. Are the resistances greater than 10,000 ohms? YES : Go to D4 . NO : REPAIR the circuit(s) in question. CLEAR the DTCs. REPEAT the self-test.
4. D4 CHECKING THE ATC SOLENOID JUMPER HARNESS NOTE: The ATC solenoid jumper harness must be secured to prevent damage to the wiring. Disconnect: ATC Solenoid C3254 Inspect the ATC solenoid jumper harness for damage. Is the ATC solenoid jumper harness damaged? YES : REPAIR or INSTALL a new ATC solenoid jumper harness. CLEAR the DTCs. REPEAT the self-test. NO : INSTALL a new rear axle assembly. REFER to «REAR DRIVE AXLE/DIFFERENTIAL»(ref-291931) article. CLEAR the DTCs. REPEAT the self-test.
5. D5 CHECK CIRCUITS CCF21 (VT/WH) AND RCF21 (WH/VT) FOR AN OPEN WITH ATC SOLENOID CONNECTED Connect: ATC Solenoid C3254 and ATC Solenoid Jumper Harness C3051 Measure the resistance between 4X4 control module C3253-8, circuit CCF21 (VT/WH), harness side and 4X4 control module C3253-16, circuit RCF21 (WH/VT), harness side. Is the resistance less than 10 ohms? YES : Go to D8 . NO : Go to D6 .
6. D6 CHECK CIRCUITS CCF21 (VT/WH) AND RCF21 (WH/VT) FOR AN OPEN AT C3051 Disconnect: ATC Solenoid Jumper Harness C3051 Measure the resistance between 4X4 control module C3253-8, circuit CCF21 (VT/WH), harness side and ATC solenoid jumper harness C3051-1, circuit CCF21 (VT/WH). Repeat this measurement while wiggling the harness. Measure the resistance between 4X4 control module C3253-16, circuit RCF21 (WH/VT), harness side and ATC solenoid jumper harness C3051-2, circuit RCF21 (WH/VT), harness side. Repeat this measurement while wiggling the harness. Are the resistances less than 5 ohms? YES : Go to D7 . NO : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.
7. D7 CHECK THE ATC SOLENOID CIRCUIT FOR AN INTERNAL OPEN NOTE: The ATC solenoid jumper harness must be secured to prevent damage to the wiring. Disconnect: ATC Solenoid C3254 Measure the resistance between ATC solenoid C3254-1, circuit CCF21 (VT/WH), component side, and ATC solenoid C3254-2, circuit RCF21 (WH/VT), component side. Repeat this measurement while wiggling the harness. Is the resistance less than 10 ohms? YES : REPAIR or INSTALL a new ATC solenoid jumper harness. CLEAR the DTCs. REPEAT the self-test. NO : INSTALL a new rear axle assembly. REFER to «REAR DRIVE AXLE/DIFFERENTIAL»(ref-291931) article. CLEAR the DTCs. REPEAT the self-test.
8. D8 CHECK CIRCUIT GD126 (BK/WH) FOR AN OPEN Measure the resistance between 4X4 control module C3253-15, circuit GD126 (BK/WH), harness side and ground. Repeat this measurement while wiggling the harness. Is the resistance less than 5 ohms? YES : Go to D9 . NO : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
9. D9 CHECK THE 4X4 CONTROL MODULE POWER CIRCUITS Key in ON position. Measure the voltage between 4X4 control module C3253-6, circuit SBP15 (WH/RD), harness side and ground; and between 4X4 control module C3253-5, circuit CBP19 (BN/WH), harness side and ground. Are the voltages greater than 10 volts? YES : Go to D10 . NO : CHECK Smart Junction Box (SJB) fuses 20 (7.5A) and 28 (10A). REPAIR the circuit in question for open or short to ground. CLEAR the DTCs. REPEAT the self-test.
10. D10 CHECK FOR CORRECT 4X4 CONTROL MODULE OPERATION Disconnect: 4X4 Control Module C3253 Check the harness and component side connectors for: corrosion. pushed-out/bent pins. Check the ATC solenoid jumper harness between the 4X4 control module and the ATC solenoid, located on the rear subframe. Connect the 4X4 control module and make sure it seats correctly. Operate the system and determine if the concern is still present. Is the concern still present? YES : INSTALL a new 4X4 control module. REFER to «4X4 Control Module»(ref-291929-S13701666422008073000000) . CLEAR the DTCs. REPEAT the self-test. NO : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.