Symptom Chart - Four-Wheel Drive Systems
WARNING: This page is about a different car, the 2018 Ford EcoSport. However, it is still accessible from the selected car via links, so may be relevant.
| Condition | Possible Sources | Actions |
|---|---|---|
| Unable to duplicate customer concern; no DTC present | The concern description is inaccurate | CARRY OUT the AWD System Functional Test. GO to Pinpoint Test A |
| Vehicle has no or inadequate torque at rear wheels | Fuse Wiring, terminals or connectors Active Torque Coupling (ATC) solenoid Active Torque Coupling (ATC) Clutch AWD Relay Module PCM |
GO to Pinpoint Test C |
| Wheels/tires | Check wheels and tires for damage. Refer to: Wheels and Tires . | |
| Rear axle | Check rear axle for damage. Refer to: Rear Drive Axle and Differential . | |
| PTU mechanical failure | Check PTU for damage. Refer to: Transfer Case . | |
| Vehicle binds in a turn or resists turning/pulsates or shudders in a straight line | Wheels/tires | Check wheels and tires for damage. Refer to: Wheels and Tires . |
| Wiring, terminals or connectors | GO to Pinpoint Test E | |
| Driveshaft | Check driveshaft for damage. Refer to: Driveshaft . | |
| Wiring, terminals or connectors Active Torque Coupling (ATC) solenoid Active Torque Coupling (ATC) Clutch AWD Relay Module |
GO to Pinpoint Test E | |
| PTU mechanical failure | Check PTU for damage. Refer to: Transfer Case . | |
| Driveshaft | Check driveshaft for damage. Refer to: Suspension System - AWD . | |
| Wheel bearings | Check wheel bearings for damage. Refer to: Suspension System - AWD . | |
| ABS | CHECK the ABS. Refer to: Anti-Lock Brake System (ABS) and Stability Control . | |
| Halfshafts | Check the halfshafts for damage. Refer to: Rear Drive Halfshafts . | |
| Tire/axle out of acceptable range | Wheels/tires ABS |
GO to Pinpoint Test B |