This procedure covers the removal and replacement of the electric power steering control module on a 2014-2018 Chevrolet Silverado 1500 with the 5.3L V8 engine.

Warnings

Tools required

Parts

• Electric Power Steering Control Module × 1 — Use OEM specification
• Mounting bolt thread locker (medium strength) × 1 — Loctite 242 or equivalent

Preparation

1. Park vehicle on level ground and set parking brake
2. Turn ignition to OFF position and remove key
3. Disconnect negative battery cable and wait 2 minutes for airbag system capacitors to discharge
4. Adjust steering wheel to full up position for best access
5. Remove driver's side lower dash panel/knee bolster using trim tools

Procedure

1. 1

   Disconnect Intermediate Steering Shaft
   Locate the intermediate shaft coupling bolt at the base of the steering column. Mark the relationship between the upper and lower shafts with a paint pen or marker for proper alignment during reinstallation. Remove the coupling bolt and separate the intermediate shaft from the steering column shaft.
   Torque spec

   Coupling Bolt42 Nm (31 lb-ft)
2. 2

   Remove Steering Column Covers
   Remove the upper and lower steering column cover screws. There are typically 4-6 screws holding the covers in place. Carefully separate the covers and set aside.
   Torque spec

   Cover Screws14 Nm (10 lb-ft)
3. 3

   Disconnect Electrical Connectors
   Locate the EPS module electrical connector on the side of the steering column. Press the connector release tab and carefully pull the connector straight out from the module. Note the routing of the wiring harness for reinstallation.
4. 4

   Remove EPS Module Mounting Bolts
   Identify the EPS module mounting bolts securing the module to the steering column bracket. There are typically 2-3 mounting bolts. Remove these bolts while supporting the module weight.
   Torque spec

   Mounting Bolts34 Nm (25 lb-ft)
5. 5

   Remove EPS Module
   Carefully slide the EPS module off the steering column shaft. The module may be tight on the shaft; gently wiggle and pull straight back to remove. Inspect the steering shaft for any damage or wear.
6. 6

   Install New EPS Module
   Clean the steering shaft with a wire brush if needed. Align the new EPS module with the steering column shaft, ensuring the splines engage properly. Slide the module fully onto the shaft until it seats against the mounting bracket.
7. 7

   Install Module Mounting Bolts
   Apply a small amount of medium-strength thread locker to the mounting bolt threads. Install the mounting bolts and tighten to specification in a cross pattern to ensure even seating.
   Torque spec

   Mounting Bolts34 Nm (25 lb-ft)
8. 8

   Reconnect Electrical Connector
   Route the wiring harness as noted during removal. Push the electrical connector firmly into the EPS module until you hear and feel a positive click. Verify the connector is fully seated and the locking tab is engaged.
9. 9

   Reinstall Steering Column Covers
   Position the lower and upper steering column covers around the column. Install all cover screws and tighten to specification. Ensure covers are properly aligned and gaps are even.
   Torque spec

   Cover Screws14 Nm (10 lb-ft)
10. 10

    Reconnect Intermediate Shaft
    Align the marks made during disassembly on the intermediate shaft and steering column shaft. Ensure the shafts are fully engaged and aligned. Install the coupling bolt and tighten to specification.
    ⚠Ensure the intermediate shaft is properly aligned using the alignment marks. Misalignment can cause steering issues and premature wear.
    Torque spec

    Coupling Bolt42 Nm (31 lb-ft)
11. 11

    Reinstall Lower Dash Panel
    Position the driver's side lower dash panel/knee bolster and secure all fasteners. Ensure all clips are properly engaged.
12. 12

    Reconnect Battery and Initialize System
    Reconnect the negative battery cable. Turn the ignition to ON position without starting the engine. The power steering warning light should illuminate briefly then turn off. If available, use a scan tool to clear any stored DTCs and verify EPS module communication.

Reassembly

1. Ensure all electrical connectors are fully seated and locked
2. Verify steering column covers are properly aligned and all screws are tight
3. Confirm intermediate shaft coupling bolt is torqued to specification

Verification

• Turn steering wheel lock-to-lock with engine off to verify smooth operation with no binding
• Start engine and verify power steering warning light turns off
• With engine running, turn steering wheel to verify proper power assist in both directions
• Test drive vehicle at low speed to confirm normal steering operation and no warning lights
• Verify steering wheel returns to center properly after turns
• Use scan tool to verify no EPS-related diagnostic trouble codes are present

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