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Power Steering Assist Motor Replacement

Fig 1: Power Steering Assist Motor
GM2262006Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
CAUTION:

Electrostatic discharge (ESD) can damage many solid-state electrical components. ESD susceptible components may or may not be labeled with the ESD symbol. Handle all electrical components carefully. Use the following precautions in order to avoid ESD damage:

  • Touch a metal ground point in order to remove your body's static charge before servicing any electronic component; especially after sliding across the vehicle seat.
  • Do not touch exposed terminals. Terminals may connect to circuits susceptible the ESD damage.
  • Do not allow tools to contact exposed terminals when servicing connectors.
  • Do not remove components from their protective packaging until required to do so.
  • Avoid the following actions unless required by the diagnostic procedure:
    • Jumpering or grounding of the components or connectors.
    • Connecting test equipment probes to components or connectors. Connect the ground lead first when using test probes.
  • Ground the protective packaging of any component before opening. Do not rest solid-state components on metal workbenches, or on top of TVs, radios, or other electrical devices.
CAUTION:

During removal and installation, all EPS components including mechanical and/or electrical is extremely susceptible to damage. Dropping or prying on any EPS component may cause internal damage. If damage occurs or a part is dropped, the EPS component must be replaced.

CAUTION:

Care must be taken during removal and installation of the Electronic Power Steering (EPS) components to not hit or break the EPS motor/controller module or module harness connectors. If the EPS motor/ controller module or module connectors are damaged, the complete component must be replaced.

Preliminary Procedures

  1. Prepare the power steering control module for removal by capturing the data from the old power steering assist control module. Power Steering Control Module Programming and Setup
  2. Steering Gear Replacement (2.4L, FWD) Steering Gear Replacement (3.6L, AWD) Steering Gear Replacement (2.4L, AWD) Steering Gear Replacement (3.6L, FWD) 
NOTE:
  • The power steering control module is part of the power steering assist motor.
  • If communication with the OLD power steering control module cannot be established, then replace the entire steering gear as an assembly. Do NOT proceed with replacement of just the power steering assist motor.
1 Power Steering Assist Motor Bolt (Qty: 3)
CAUTION:

Refer to Fastener Caution .

Procedure

  1. Remove the power steering assist motor bolts.

    DISCARD the bolts.

  2. Install the NEW power steering assist motor bolts.

Tighten 
8 N.m (71 lb in)
2 Power Steering Assist Motor

Procedure

  1. Remove the O-ring from the steering gear housing.

    DISCARD the O-ring seal.

  2. Install a NEW O-ring around the steering gear housing.
  3. Install the steering gear coupling to the assist motor armature.
  4. Align the steering gear coupling on the assist motor armature to the steering gear.
  5. Align the power steering assist motor bolts to the steering gear while pressing the motor over the gear housing O-ring.
  6. After the installation is complete, proceed with the scan tool instructions to transfer the data from the OLD power steering control module to the NEW power steering control module. Power Steering Control Module Programming and Setup