Removal Procedure
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.
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.
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.
- Perform the strategy based diagnosis. Performing the strategy based diagnostics includes reviewing related bulletins, preliminary information and diagnostics. Strategy Based Diagnosis
- 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.
- Capture the key cycle count from the OLD steering gear control module. If the key cycle count from the OLD steering gear control module is NOT captured, it will NOT be possible to flash the NEW steering gear control module. Control Module References
- Steering Gear - Remove - Electric Dual Pinion Rack and Pinion Steering Gear Replacement (LTG With AWD) , Electric Dual Pinion Rack and Pinion Steering Gear Replacement (LCV With AWD) , and Electric Dual Pinion Rack and Pinion Steering Gear Replacement (LCV With FWD)
- CAUTION:
Do NOT pry on the Power Steering Assist Motor electrical connector. Prying on the Power Steering Assist Motor electrical connector could crack the Power Steering Assist Motor housing. If the Power Steering Assist Motor housing is cracked, the motor assembly must be replaced.
Remove the connector position assurance lock (1) from the electrical connector. (2)
- Discard the connector position assurance lock (1) if damaged during removal.
Depress connector tab (1) and disconnect the electrical connector (2) from the power steering assist motor. (3)
Power Steering Assist Motor Bolt (1) - Remove and DISCARD the bolt. [2x]
- Power Steering Assist Motor (2) - Remove
Remove the Steering Gear Drive Coupling (1) - Remove and DISCARD
- Power Steering Assist Motor Seal (2) - Remove and DISCARD
- Inspection of the steering gear motor shaft and the inside of the steering gear housing is REQUIRED to ensure that there are NO signs of water intrusion or corrosion which MAY cause premature motor failure.
- If signs of water intrusion or corrosion ARE present then the steering gear MUST be replaced.
- Inspect the steering gear motor shaft and inside of the steering gear housing for signs of water intrusion or corrosion. If no signs of water intrusion or corrosion are present proceed to the next step. If signs of water intrusion or corrosion are present then replace the steering gear. Electric Dual Pinion Rack and Pinion Steering Gear Replacement (LTG With AWD) , Electric Dual Pinion Rack and Pinion Steering Gear Replacement (LCV With AWD) , and Electric Dual Pinion Rack and Pinion Steering Gear Replacement (LCV With FWD)