1NJ75DX9AF | Genuine Mopar® Steering Column Module

1. Centralizes Control of Steering-Column Functions

The SCM operates:

• Turn signals

• Wipers & washers

• Headlights (high/low beam)

• Horn

• Steering wheel buttons (cruise, audio, phone)

All these functions run through the module.

2. Communicates With Vehicle Electronics

The SCM sends and receives signals through the vehicle's network (CAN bus or LIN bus), allowing the car’s computer systems to respond to driver inputs.

3. Integrates Safety Systems

It works with the:

• Clock spring (airbag wiring)

• Steering angle sensor (for stability control, ABS, traction control)

These systems rely on accurate information from the module.

4. Improves Driver Convenience

Instead of separate switches, the SCM allows modern controls to be:

• Integrated

• Multi-functional

• Smart (auto wipers, auto lights, etc.)

5. Supports Advanced Features

Some SCMs also control:

• Electronic steering locks

• Ignition switches (push-to-start systems)

• Adaptive lighting

• Lane-keeping steering input sensors

1. Turn Signals Not Working or Acting Strange

• No turn signals

• Turn signals stay on

• Indicators won’t cancel after turning
  This is one of the most common symptoms.

2. Wipers or Washer Not Working Properly

• Wipers won’t turn on

• Wipers are stuck on one speed

• Washer pump doesn’t activate

• Wipers turn on by themselves

3. Headlight Issues

• High beams or low beams won’t switch

• Headlights turn on/off unexpectedly

• Flash-to-pass doesn’t work

4. Horn Problems

• Horn won’t work

• Horn activates randomly (rare but possible)

5. Steering Wheel Button Failures

• Radio controls not responding

• Cruise control won’t turn on

• Phone or menu buttons stop working

This can be caused by SCM failure or clock spring issues.

6. Airbag Warning Light

The SCM works with the clock spring; if it can’t read correct signals:

• Airbag light stays on

• Steering wheel airbag may be disabled (safety issue)

7. Steering Angle Sensor Errors

If the SCM houses or communicates with the steering angle sensor:

• ABS lights

• Traction control lights

• Stability control lights

• “Service steering” or “ESC” warning

8. Strange Electrical Behavior

• Random clicking noises in the steering column

• Components activating without touching controls

• Intermittent failures of multiple switches

This often indicates a failing internal circuit.

9. Trouble Codes

A scan tool may show faults like:

• Steering Column Control Module Failure

• Steering Angle Sensor Communication Error

• Multi-Function Switch Failure

• LIN/CAN Bus Communication Errors