Airbag - Driver

Remove and replace the driver airbag module in the steering wheel of a 1994-2007 Dodge Ram 2500 with 5.9L Cummins diesel engine.

Warnings

Tools required

Parts

• Driver airbag module × 1 — Use OEM specification

Preparation

1. Park vehicle on level ground and set parking brake
2. Turn ignition to OFF position and remove key
3. Turn front wheels to straight-ahead position
4. Open hood and locate battery in engine compartment
5. Disconnect negative battery cable first, then positive battery cable
6. Wait a MINIMUM of 2 full minutes after battery disconnection before proceeding - this is mandatory for capacitor discharge
7. Verify replacement airbag module is correct part number for your specific year and model
8. Inspect new airbag module for any shipping damage - do not install if damaged
9. Keep all airbag components away from heat, moisture, and electrical sources

Procedure

1. 1

   Access airbag mounting holes
   From behind the steering wheel, locate the two access holes on the back side of the steering wheel. These are typically positioned at 3 o'clock and 9 o'clock positions. On some model years, you may need to rotate the wheel slightly to access them more easily, but ensure wheels remain generally straight.
2. 2

   Remove airbag module retaining bolts
   Insert the correct Torx bit (verify size against service manual — commonly T30) through each access hole and remove the airbag module retaining bolts. These bolts secure the airbag to the steering wheel. Support the airbag module with your other hand as you remove the second bolt to prevent it from falling. There are typically two bolts total.
   ⚠Keep your body and face away from the airbag face during removal in case of accidental deployment.
   Torque spec

   Airbag Module Bolts7 Nm (5 lb-ft)
3. 3

   Separate airbag module from steering wheel
   Carefully pull the airbag module straight away from the steering wheel hub. Pull evenly and gently - it should separate freely once bolts are removed. The electrical connector will still be attached at the back of the module, so only pull it out 4-6 inches.
4. 4

   Disconnect airbag electrical connector
   Locate the yellow airbag electrical connector at the back of the module. Depress the connector locking tab and carefully pull the connector apart. On some models there may be a secondary red locking clip that must be removed first. Note the connector orientation for reassembly.
   ⚠️Do not pull on wires. Always disconnect at the connector body only.
5. 5

   Disconnect horn wire (if equipped)
   If your vehicle has a horn wire connection at the airbag module, disconnect it now. This is typically a single wire connector separate from the main airbag connector. Not all model years have this configuration - some horn circuits are integrated into the clockspring.
6. 6

   Remove old airbag module
   Remove the old airbag module completely from the vehicle. Immediately place it face-up on a clean, flat surface in a safe area away from the work zone. Never place airbag module face-down. Keep away from heat, electrical sources, and impact.
7. 7

   Inspect clockspring and wiring
   With the airbag removed, inspect the yellow clockspring connector and wiring harness for any damage, corrosion, or wear. Verify the clockspring is properly centered - there should be alignment marks or indicators. Do not rotate the steering wheel with the airbag removed as this can damage the clockspring.
   ⚠If clockspring appears damaged or is not centered, it must be replaced or re-centered before installing new airbag. Consult service manual for clockspring centering procedure.
8. 8

   Prepare new airbag module
   Remove new airbag module from packaging. Inspect for any damage. Verify it matches the old module design and connector configuration. Keep module face-up at all times.
9. 9

   Connect horn wire (if equipped)
   If your vehicle has a separate horn wire, connect it to the new airbag module first. Ensure the connection is secure and the wire is routed properly to avoid pinching during installation.
10. 10

    Connect airbag electrical connector
    Connect the yellow airbag electrical connector to the new airbag module. Ensure any secondary locking clips are properly engaged. The connector should click firmly into place. Verify the connection is secure by gently tugging on the connector body (not wires).
    ⚠Ensure connector is fully seated. A partial connection can prevent deployment or cause false fault codes.
11. 11

    Position airbag module on steering wheel
    Carefully guide the wiring connectors into the steering wheel hub area and position the airbag module onto the steering wheel. Ensure the module is oriented correctly - the TOP marking on the airbag should be at 12 o'clock position. Align the mounting holes in the airbag with the threaded inserts in the steering wheel.
12. 12

    Install airbag module retaining bolts
    Thread both T50 Torx bolts by hand through the access holes from the back of the steering wheel. Start both bolts before tightening either one. Once both are started, tighten them evenly using a torque wrench to the manufacturer-specified value (verify in service manual — approximately 8-10 Nm / 70-90 lb-in for this platform). This torque specification is CRITICAL - use an inch-pound torque wrench for accuracy.
    ⚠️CRITICAL: Proper torque is essential for airbag function. Over-torquing can damage deployment mechanism. Under-torquing can cause module separation during deployment. Use calibrated torque wrench.
    Torque spec

    Airbag Module Bolts7 Nm (5 lb-ft)
13. 13

    Verify airbag installation
    Verify the airbag module is flush against the steering wheel with no gaps. Ensure no wiring is pinched between module and steering wheel. Confirm TOP marking is at 12 o'clock position. Gently attempt to move the airbag - it should be solidly mounted with no movement.
14. 14

    Reconnect battery
    Reconnect the positive battery cable first, then the negative battery cable. Tighten battery terminal bolts to the manufacturer-specified torque (verify in service manual — typically about 10-14 Nm / 90-120 lb-in). Ensure terminals are clean and connections are secure.
    Torque spec

    Battery Terminal Bolts7 Nm (5 lb-ft)
15. 15

    Clear fault codes and test system
    Turn the ignition to ON position (do not start engine). The airbag warning light should illuminate for 6-8 seconds then go out. If the light stays on or flashes, there is a fault in the system that must be diagnosed before operating the vehicle. On later model years (1996 and newer with OBD-II), a scan tool may be required to clear stored fault codes from the battery disconnection; early 1994-1995 SRS systems typically self-clear once a fault is corrected.
    ⚠️DO NOT operate the vehicle if the airbag warning light remains illuminated or flashes. This indicates a system fault that could prevent deployment in a crash.

Reassembly

1. No additional reassembly required beyond installation steps
2. Ensure all electrical connections are secure and properly routed
3. Verify airbag module is torqued to specification
4. Confirm battery connections are tight and clean

Verification

• Turn ignition to ON position - airbag warning light should illuminate briefly (6-8 seconds) then go out completely
• If equipped with a scan tool, verify no active airbag fault codes are present
• Verify horn function (if horn circuit is through airbag module)
• Visually inspect airbag module to ensure it is flush with steering wheel and properly aligned
• Confirm no gaps exist between airbag module and steering wheel
• Test drive vehicle and verify airbag warning light remains off during operation
• If airbag light remains on or flashes at any point, do not operate vehicle - seek professional diagnosis immediately

Related trouble codes on this vehicle

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