Steering Angle Sensor

This procedure covers the removal and replacement of the steering angle sensor located on the steering column of 1994-2007 Dodge Ram 2500 4WD vehicles with the 5.9L Cummins diesel engine.

Warnings

Tools required

Parts

• Steering angle sensor × 1 — Use OEM specification
• Electrical connector grease × 1 — Dielectric grease

Preparation

1. Park vehicle on level ground with wheels pointed straight ahead
2. Set parking brake and place transmission in park
3. Turn ignition off and remove key
4. Mark the steering wheel position at 12 o'clock with tape or marker
5. Disconnect negative battery cable and wait minimum 2 minutes for airbag system capacitor discharge
6. Remove lower steering column trim covers to access steering column components

Procedure

1. 1

   Remove lower steering column covers
   Remove the Phillips head screws securing the lower steering column shroud. There are typically 4-5 screws depending on model year. Carefully separate the upper and lower column covers and set aside. Use trim tools if necessary to avoid breaking clips. Position the lower and upper steering column covers back onto the column, ensuring all wiring is properly routed and not pinched. Install the cover screws and snug them by hand until seated (do not overtighten plastic trim screws). Verify all trim pieces are properly seated and secure.
2. 2

   Locate the steering angle sensor
   If present, the steering angle sensor is most commonly integrated into the clockspring assembly behind the steering wheel, though on some designs it is a separate module on the steering column below the multifunction switch. Confirm actual location against the factory service manual before proceeding. It is a round or rectangular module with an electrical connector. Verify sensor location and note routing of wiring harness.
   ℹ️On some model years, the sensor may be integrated with the clockspring assembly behind the steering wheel. Consult service manual if sensor is not visible on column.
3. 3

   Disconnect sensor electrical connector
   Locate the electrical connector on the steering angle sensor. Press the locking tab and carefully pull the connector straight out from the sensor. Inspect connector pins for corrosion or damage. Clean if necessary with electrical contact cleaner.
   ⚠Do not pull on wires; grip the connector body only to prevent wire damage.
4. 4

   Remove sensor mounting hardware
   Remove the mounting bolts or screws securing the steering angle sensor to the steering column. These are typically 2-4 bolts depending on sensor design. Keep hardware organized for reinstallation. Note the orientation of the sensor before removal.
   ⚠Support the sensor during removal to prevent it from falling and damaging internal components.
5. 5

   Remove steering angle sensor
   Carefully slide the steering angle sensor off the steering column shaft. The sensor typically has a center opening that slides over the column shaft. Note the orientation and any alignment marks or tabs. If sensor has a coupling bolt securing it to the shaft, remove this first.
   Torque spec

   Coupling Bolt34 Nm (25 lb-ft)
6. 6

   Inspect mounting area and clean
   Inspect the steering column shaft and mounting area for damage, wear, or debris. Clean the shaft with a clean rag to remove any dirt or contamination. Check that the column shaft splines or coupling are in good condition. Verify no damage to wiring harness routing clips.
   ℹ️Replace the sensor if the internal gear teeth or encoder wheel show wear or damage.
7. 7

   Install new steering angle sensor
   Align the new steering angle sensor with the steering column shaft, ensuring any alignment tabs or notches are properly positioned. The sensor must be oriented correctly for proper operation. Slide the sensor onto the column shaft until it seats fully against the mounting surface.
   ⚠Ensure wheels remain pointed straight ahead and steering wheel has not moved from marked position.
8. 8

   Install sensor mounting hardware
   Install the mounting bolts or screws to secure the steering angle sensor to the steering column. Hand-tighten first to ensure proper alignment, then torque to specification in a cross pattern if multiple bolts are used. If sensor uses a coupling bolt to the shaft, install and torque that first.
   Torque spec

   Coupling Bolt34 Nm (25 lb-ft)
9. 9

   Reconnect electrical connector
   Apply a small amount of dielectric grease to the sensor electrical connector pins. Align the connector and press firmly until the locking tab clicks into place. Gently tug on the connector to verify it is fully seated and locked.
   ℹ️Ensure connector lock engages fully to prevent intermittent connection issues.
10. 10

    Reinstall steering column covers
    Position the lower and upper steering column covers back onto the column, ensuring all wiring is properly routed and not pinched. Install the cover screws and torque to specification. Verify all trim pieces are properly seated and secure.
11. 11

    Reconnect battery and perform sensor calibration
    Reconnect the negative battery cable. If the vehicle is actually equipped with an SAS/ESC system (verify first — many 1994-2007 Ram 2500 trucks are not), turn ignition to ON (do not start engine), connect a compatible scan tool, and perform the steering angle sensor calibration per the factory service manual. NOTE: 1994-1995 trucks are pre-OBD-II and do not support generic OBD-II scan-tool calibration. If equipped with SAS/ESC, sensor calibration is mandatory and driving without proper calibration may cause ABS/stability control malfunctions and warning lights. Verify the vehicle actually has these systems before assuming calibration is required.
    ⚠️Sensor calibration is mandatory. Driving without proper calibration will cause ABS and stability control system malfunctions and warning lights.
12. 12

    Verify sensor operation
    With scan tool connected, verify the steering angle sensor reads 0 degrees (or very close to 0) with wheels straight ahead. Turn steering wheel slowly left and right while monitoring sensor data. Sensor should show smooth changes in angle reading. Clear any diagnostic trouble codes and verify no warning lights remain on dashboard.
    ℹ️If sensor reading is erratic or does not change smoothly with steering input, recheck electrical connection and sensor mounting.

Reassembly

1. Ensure all steering column covers are properly installed and secured
2. Verify steering wheel can turn freely lock-to-lock without binding or interference
3. Confirm all electrical connectors are fully seated and locked
4. Double-check that no tools or parts were left in the steering column area

Verification

• Start engine and verify no ABS, traction control, or stability control warning lights are illuminated on dashboard
• With scan tool, verify steering angle sensor reads approximately 0 degrees with wheels straight
• Turn steering wheel slowly from lock to lock and verify smooth sensor operation without jumps or dropouts
• Test drive vehicle at low speed in a safe area and verify ABS and stability control systems function normally
• Perform final scan for diagnostic trouble codes and verify none are present in ABS or stability control systems

Related trouble codes on this vehicle

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