Replace the steering angle sensor located in the steering column assembly to restore proper vehicle stability control and driver assistance system functionality.

Warnings

Tools required

Parts

• Steering angle sensor × 1 — Use OEM specification
• Lower steering column cover screws (if damaged) × 2 — Use OEM specification

Preparation

1. Park vehicle on level surface and ensure steering wheel is centered with wheels pointed straight ahead
2. Mark steering wheel position relative to column with tape or marker
3. Disconnect negative battery terminal and wait minimum 15 minutes
4. Remove driver's side knee bolster panel using trim removal tools
5. Lower steering column to lowest position for easier access

Procedure

1. 1

   Remove lower steering column covers
   Remove the lower steering column cover screws using appropriate Torx driver. Carefully separate the upper and lower column covers by releasing the retaining clips. Set covers aside in a protected area to avoid scratching.
   Torque spec

   Cover Screws11 Nm (8 lb-ft)
2. 2

   Disconnect sensor electrical connector
   Locate the steering angle sensor connector on the steering column below the ignition switch. Press the connector locking tab and carefully pull connector straight back to disconnect. Avoid pulling on wires.
   ⚠Do not force connector or bend pins
3. 3

   Remove sensor mounting fasteners
   Remove the steering angle sensor mounting bolts using the appropriate socket. Note the orientation and position of any alignment tabs or locating pins on the sensor housing. Support the sensor to prevent it from falling once fasteners are removed.
   Torque spec

   Mounting Bolts28 Nm (21 lb-ft)
4. 4

   Mark and separate steering coupling
   Mark the relationship between the steering column shaft and intermediate shaft coupling with paint or marker for proper reassembly alignment. Remove the coupling bolt using a 13mm socket while holding the nut on the opposite side to prevent shaft rotation.
   ⚠Do not allow steering shaft to rotate during disassembly
   Torque spec

   Coupling Bolt35 Nm (26 lb-ft)
5. 5

   Remove steering angle sensor
   Carefully slide the steering angle sensor off the steering column shaft. Note the orientation of the sensor housing and any alignment features. Inspect the steering shaft for wear or damage.
   ℹ️If sensor is stuck, gently rock it side to side while pulling straight off - do not pry or use excessive force
6. 6

   Inspect and prepare installation area
   Clean the steering column shaft with a lint-free cloth to remove any dirt or debris. Inspect the shaft for scoring, wear, or damage. Verify the new sensor rotates freely and alignment features are intact. Confirm steering wheel position has not moved from centered position.
   ⚠If steering wheel has moved, recenter it before proceeding
7. 7

   Install new steering angle sensor
   Slide the new steering angle sensor onto the steering column shaft, aligning any locating pins or tabs with their corresponding slots. Ensure the sensor is fully seated against the column housing and oriented correctly for electrical connector access.
   ℹ️Sensor should slide on smoothly without force - verify alignment if resistance is felt
8. 8

   Install sensor mounting fasteners
   Install and hand-tighten the steering angle sensor mounting bolts. Verify sensor is properly seated and aligned before final tightening. Torque mounting bolts to specification in a cross-pattern if multiple bolts are present.
   Torque spec

   Mounting Bolts28 Nm (21 lb-ft)
9. 9

   Reconnect steering coupling
   Align the marks made during disassembly on the steering column shaft and intermediate shaft. Install the coupling bolt and hand-tighten. Verify alignment is correct before torquing. Torque coupling bolt to specification.
   ⚠Misalignment of coupling will cause binding and incorrect steering angle readings
   Torque spec

   Coupling Bolt35 Nm (26 lb-ft)
10. 10

    Reconnect electrical connector
    Reconnect the steering angle sensor electrical connector, ensuring it locks firmly into place with an audible click. Verify connector is fully seated and locking tab is engaged.
    ℹ️Inspect connector pins for damage or corrosion before connecting
11. 11

    Reinstall steering column covers
    Position the lower and upper steering column covers, ensuring all clips align properly. Install cover screws and torque to specification. Verify covers are secure and do not interfere with steering column movement.
    Torque spec

    Cover Screws11 Nm (8 lb-ft)
12. 12

    Calibrate steering angle sensor
    Reconnect battery negative terminal. Using a Maserati diagnostic scanner or equivalent professional scan tool, access the steering angle sensor calibration function. Follow on-screen prompts to perform zero-point calibration with wheels straight and steering wheel centered. Clear any stored fault codes related to steering angle sensor.
    ⚠️Vehicle must not be driven until calibration is successfully completed and verified

Reassembly

1. Reinstall knee bolster panel and any other removed trim pieces
2. Return steering column to driver's preferred position
3. Verify all electrical connections are secure and no tools or parts remain in work area

Verification

• Turn ignition on and verify no steering angle sensor fault codes are present
• Verify ESC, stability control, and lane keeping system warning lights are not illuminated
• Perform a test drive at low speed in a safe area, turning steering wheel lock-to-lock to verify proper sensor operation
• Use diagnostic scanner to verify steering angle sensor is reading correctly (0 degrees at center, positive/negative values when turning)
• Confirm all driver assistance systems are functioning normally without warning messages

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