Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2009 Chrysler 300 LXFACTORY OEM SERVICE PROCEDURE
Steering Control Module (SCM) - Electrical Diagnostics
| DTC | Description |
|---|---|
| B1489 | STEERING WHEEL CONTROL AUDIO SWITCH CIRCUIT |
| B148A | STEERING WHEEL CONTROL MENU SWITCH CIRCUIT |
| B148B | STEERING WHEEL CONTROL UP SWITCH CIRCUIT |
| B148C | STEERING WHEEL CONTROL DOWN SWITCH CIRCUIT |
| B148D | STEERING WHEEL CONTROL SIDE SWITCH CIRCUIT |
| B148E | STEERING WHEEL CONTROL [+] SWITCH CIRCUIT |
| B148F | STEERING WHEEL CONTROL [-] SWITCH CIRCUIT |
| B1490 | STEERING WHEEL CONTROL C/T SWITCH CIRCUIT |
| B1DA0 | STEERING COLUMN TILT SWITCH CIRCUIT STUCK |
| B1DA5 | STEERING COLUMN TELESCOPE SWITCH CIRCUIT STUCK |
| B2225 | STEERING CONTROL MODULE INTERNAL |
| B2332 | HORN SWITCH INPUT CIRCUIT/PERFORMANCE |
| C1219 | STEERING ANGLE SENSOR ERRATIC PERFORMANCE |
| P0562 | BATTERY VOLTAGE LOW |
| P0563 | BATTERY VOLTAGE HIGH |
| P0585 | SPEED CONTROL MULTIPLEXED SWITCH 1/2 CORRELATION |
| U0002 | CAN C BUS OFF PERFORMANCE |
| U0019 | CAN B BUS CIRCUIT |
| U0121 | LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE |
| U0141 | LOST COMMUNICATION WITH IPM (FCM/TIPM) |
| U0155 | LOST COMMUNICATION WITH CLUSTER/CCN |
| U1109 | LOST COMMUNICATION WITH LIN STEERING WHEEL CONTROLS |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.