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.
- Before performing the procedure, review the high voltage safety information. High Voltage Safety
- Disable the high voltage system. High Voltage Disabling
- The steering column
- The intermediate shaft(s)
- The steering gear
- With the steering wheel in the straight ahead position, LOCK the steering column.
- Seperate Intermediate Steering Shaft@Steering Gear Intermediate Steering Shaft Replacement
- Remove Intermediate Steering Shaft Inner Boot Intermediate Steering Shaft Inner Boot Replacement
- Remove the front tire and wheel assemblies. Tire and Wheel Removal and Installation
- Remove Front Compartment Air Deflector.Front Compartment Air Deflector Replacement
- Remove the front, middle, and rear portions of the front compartment splash shield. Front Compartment Splash Shield Replacement (Front)Front Compartment Splash Shield Replacement (Middle)Front Compartment Splash Shield Replacement (Rear)
- Separate Front Stabilizer Shaft Link@Strut Assembly Stabilizer Shaft Link Replacement
- Separate Steering Linkage Outer Tie Rod@Steering Knuckle Steering Linkage Outer Tie Rod Replacement
- Disconnect the transmission fluid pump motor cable connector. Transmission Fluid Pump Replacement
- Remove the rear transmission mount strut to frame bolts. Transmission Mount Strut Replacement - Rear
- Support the rear of the drivetrain and front suspension frame with adjustable stands.
- Support the transmission with a hydraulic jack.
- Remove the drivetrain and front suspension frame stabilizer brackets. Drivetrain and Front Suspension Frame Stabilizer Bracket Replacement
- Loosen the front drivetrain and front suspension frame bolts. Drivetrain and Front Suspension Frame Replacement
- Disconnect the upper conduit retainer bracket from the drivetrain front and electronic system power supply module frame and disconnect the lower conduit retainer bracket from the drivetrain and front suspension frame. 300-Volt Battery Positive and Negative Cable Replacement (Drive Motor Generator Power Inverter Module to Drive Motor Battery)300-Volt Battery Positive and Negative Cable Replacement (Drive Motor Generator Power Inverter Module to High Voltage Battery Disconnect Module)
- Lower the rear of the drivetrain and front suspension frame to obtain the necessary clearance to remove the steering gear.
- Remove the steering gear bolts (1).
- Remove the steering gear (2) from the drivetrain and front suspension frame.
- Transfer components as necessary.
With wheels of the vehicle facing straight ahead, secure the steering wheel utilizing steering column anti-rotation pin, steering column lock, or a strap to prevent rotation. Locking of the steering column will prevent damage and a possible malfunction of the SIR system. The steering wheel must be secured in position before disconnecting the following components:
After disconnecting these components, do not rotate the steering wheel or move the front tires and wheels. Failure to follow this procedure may cause the SIR coil assembly to become un-centered and cause possible damage to the SIR coil. If you think the SIR coil has become un-centered, refer to your specific SIR coil's centering procedure to re-center SIR Coil.