Power Steering Service

Inspection and verification procedure for the 2017 Maserati Levante electric power steering system, which does not require fluid service but needs periodic electrical and mechanical component inspection.

Warnings

Tools required

Parts

• Electrical contact cleaner × 1 — Use OEM specification

Preparation

1. Park vehicle on level surface and engage parking brake
2. Turn ignition off and remove key
3. Allow engine to cool if recently operated
4. Disconnect battery negative terminal and wait 2 minutes for system discharge
5. Ensure front wheels are in straight-ahead position

Procedure

1. 1

   Scan for Diagnostic Trouble Codes
   Connect OBD-II scanner to diagnostic port. Check for any EPS-related fault codes in the steering control module. Document all codes before clearing. Common codes include steering angle sensor faults, torque sensor issues, or motor communication errors.
2. 2

   Inspect Steering Column Connections
   Locate the EPS control module near the base of the steering column. Visually inspect all electrical connectors for corrosion, damage, or loose connections. Check the main power connector and torque sensor connector for proper seating.
3. 3

   Clean and Secure Electrical Connections
   Disconnect each connector one at a time. Spray electrical contact cleaner on terminals and allow to dry. Inspect pins for damage or corrosion. Reconnect firmly until you hear a click. Verify connector locks are fully engaged.
   Torque spec

   Connector Bolts7 Nm (5 lb-ft)
4. 4

   Inspect Steering Rack Mounting and Boots
   From underneath the vehicle, inspect the electric steering rack for secure mounting, checking all mounting points for looseness or damage. Examine steering boots for tears, cracks, or grease leakage. Check tie rod ends for excessive play.
   Torque spec

   Mounting Bolts28 Nm (21 lb-ft)
5. 5

   Check Ground Connections
   Locate the EPS ground point on the chassis near the steering column. Use wire brush to clean ground contact surface if corrosion is present. Verify ground bolt is tight and connection has good metal-to-metal contact.
   Torque spec

   Mounting Bolts28 Nm (21 lb-ft)
6. 6

   Test Steering Angle Sensor
   Using multimeter, verify steering angle sensor is receiving proper voltage (typically 5V reference). Reconnect battery negative terminal. With ignition on but engine off, monitor sensor output while slowly rotating steering wheel lock-to-lock. Output should vary smoothly without jumps or dead spots.
   Torque spec

   Sensor Bolts11 Nm (8 lb-ft)
7. 7

   Perform Steering Angle Sensor Calibration
   With diagnostic scanner connected and engine running, perform steering angle sensor calibration procedure: center steering wheel precisely, select calibration function in scanner, follow prompts to complete zero-point calibration. Verify sensor reads 0 degrees at center.
8. 8

   Test System Operation
   Start engine and allow to idle. Turn steering wheel slowly from lock to lock while feeling for binding, unusual resistance, or noise. EPS assist should be smooth and progressive. Check for warning lights on instrument cluster. Monitor live data on scanner for motor current draw and system temperature.

Reassembly

1. Ensure all electrical connectors are fully seated and locked
2. Verify all mounting hardware is torqued to specification
3. Clear any stored fault codes from previous inspection
4. Reconnect battery negative terminal and verify no warning lights remain illuminated

Verification

• Start engine and verify no power steering warning light on dashboard
• Test steering assist at idle and at various engine speeds - assist should be smooth and consistent
• Perform lock-to-lock steering test while stationary - no binding or unusual noises should be present
• Drive vehicle and confirm steering effort is appropriate at parking speeds and highway speeds
• Re-scan for fault codes - no new EPS codes should be present
• Verify steering wheel returns to center smoothly after turning

Related trouble codes on this vehicle

Codes that commonly send this job to the bay — tap one for symptoms, causes, and diagnostic steps.

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