Steering Wheel Surges/Jerks While Turning
WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
| Condition | Action |
|---|---|
| Verify the customer complaint | Test the vehicle on a shop hoist or road test. It may be necessary to compare to a like vehicle to determine if an issue is present. |
| DTCs are present | Confirm and repair the condition that set DTC. Diagnostic Starting Point - Vehicle |
| Loss of battery voltage at steering gear | Inspect the battery cable connection for looseness and corrosion. Inspect/test the battery. Battery Inspection/Test |
| Loss of battery voltage at steering gear |
NOTE:
If the connectors or terminals are damaged and/or corroded at the Power Assist Motor, replace the Power Steering Assist Motor. Power Steering Assist Motor Replacement (AWD) , or Power Steering Assist Motor Replacement (RWD without Blackwing) , or Power Steering Assist Motor Replacement (with Blackwing) Wiring harness, connectors, and terminals that power the electric belt drive rack and pinion steering gear cannot be repaired. The appropriate wiring harness or the electric belt drive rack and pinion steering gear component must be replaced. |
| Loss of battery voltage at steering gear |
NOTE:
Inspect the engine wiring harness connectors and terminals leading to the steering gear for looseness, corrosion, and/or damage. If the engine wiring harness connectors or terminals has looseness, corrosion, and/or damage, replace the engine wiring harness.Wiring harness, connectors, and terminals that power the electric belt drive rack and pinion steering gear cannot be repaired. The appropriate wiring harness or the electric belt drive rack and pinion steering gear component must be replaced. |
| Loss of communication with electric belt drive rack and pinion steering gear. |
NOTE:
Inspect the wiring harness, connectors and terminals at the electric belt drive rack and pinion steering gear torque sensor for looseness, corrosion, and/or damage. If the wiring harness, connectors and terminals are damaged and/or corroded at the power steering gear torque sensor, replace the electric belt drive rack and pinion steering gear. Electric Belt Drive Rack and Pinion Steering Gear Replacement (AWD) , or Electric Belt Drive Rack and Pinion Steering Gear Replacement (RWD without Blackwing) , or Electric Belt Drive Rack and Pinion Steering Gear Replacement (with Blackwing) Wiring harness, connectors, and terminals that communicate with the electric belt drive rack and pinion steering gear cannot be repaired. The appropriate wiring harness or the electric belt drive rack and pinion steering gear component must be replaced. |
| Binding in the inner tie rod ends. | Inspect the inner tie rods. Steering Linkage Inner Tie Rod Inspection |
| Binding in the outer tie rod ends. | Inspect the outer tie rods. Steering Linkage Outer Tie Rod Inspection |
| Binding in the ball joints. | Inspect the ball joints. Front Ball Joint Inspection |
| Binding in the intermediate steering shaft boot. | Replace the intermediate steering shaft boot. |
| Binding in the intermediate steering shaft. | Replace the intermediate steering shaft. Intermediate Steering Shaft Replacement (RWD without Blackwing) , or Intermediate Steering Shaft Replacement (AWD) , or Intermediate Steering Shaft Replacement (RWD with Blackwing) |
| Binding in the steer gear boots. | Replace the steering gear boot. Steering Gear Boot Replacement (without Blackwing) , or Steering Gear Boot Replacement (with Blackwing) |
| Binding in the steering column. | Replace the steering column. Steering Column Replacement (with N37) , or Steering Column Replacement (with N38) |
| Binding in the electric belt drive rack and pinion steering gear. | Replace the electric belt drive rack and pinion steering gear. Electric Belt Drive Rack and Pinion Steering Gear Replacement (AWD) , or Electric Belt Drive Rack and Pinion Steering Gear Replacement (RWD without Blackwing) , or Electric Belt Drive Rack and Pinion Steering Gear Replacement (with Blackwing) |
| Binding in the front wheel drive shaft inner joint or boot. | Replace the affected front wheel drive half shaft. |
| Binding in the front wheel drive shaft outer joint or boot. | Replace the affected front wheel drive half shaft. |