Power Steering Motor: Service and Repair

POWER STEERING ASSIST MOTOR REPLACEMENT

Removal Procedure






1. Disconnect the power steering assist motor sensor wire harness connector (6) from the power steering assist motor (5).

Important: If you are replacing the power steering assist motor, you will need the power steering assist motor sensor wire harness strap clip (7) for the new power steering assist motor installation. If you are replacing the steering column, a new power steering assist motor sensor wire harness strap clip will come with the column service kit. Keep the existing wire strap clip attached to the power steering assist motor sensor wire harness.

2. Use needle nose pliers in order to remove the power steering assist motor wire strap clip from the power steering assist motor. If you are replacing the power steering assist motor, remove the power steering assist motor wire strap clip from the power steering assist motor sensor wire harness. If you are replacing the steering column, keep the power steering assist motor wire harness strap clip attached to the power steering assist motor sensor wire harness.

3. Use a M6x1 TORX� head bit in order to remove the 2 power steering assist motor bolts (2).

Important: The power steering assist motor housing must be free of any type of debris. Remove any loose debris from the power steering assist motor housing, but do NOT remove the remaining grease on the power steering assist motor input shaft (3).

4. Grasp the power steering assist motor. Pull on the power steering assist motor evenly and straight away from the steering column in order to remove the power steering assist motor.

5. Inspect the steering column assist mechanism input shaft for the rotor isolator bumper (4). If present, remove the rotor isolator bumper.

Installation Procedure






1. Insert the rotor isolator bumper (1) into the rotor isolator (3) in the power steering assist motor (2).

Notice: Do NOT allow the wiring harness to be pinched between the motor/module assembly and the steering column during installation. A pinched harness will cause diagnostic trouble codes to be set and may require replacement of the steering column.

2. Fit the rotor isolator over the steering column assist mechanism input shaft.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.






3. Use a M6x1 TORX head bit in order to install the power steering assist motor bolts (1).

Tighten
Tighten the bolts to 9 Nm (80 lb in).

4. Connect the power steering assist motor sensor wire harness (3) to the power steering assist motor (2).

5. Install the power steering assist motor sensor wire harness strap clip (4) to the power steering assist motor.

6. Perform the control module setup. Testing and Inspection