LIN 2 Bus Steering Control Module Electrical Diagnostics
Table of contents
U1009 CHRYSLER Possible Causes
- Faulty Steering Wheel Control Switch
- Steering Wheel Control Switch harness is open or shorted
- Steering Wheel Control Switch circuit poor electrical connection
- Faulty Clockspring
How do I fix code U1009 CHRYSLER?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the U1009 CHRYSLER code
The cost of diagnosing the U1009 CHRYSLER code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
U1009 CHRYSLER Description
The Right Steering Wheel Control Switch (Speed Control Switch) includes the cruise control functions. Cruise Control Functions are resistor multiplexed and are hard wired inputs to the Steering Angle Sensor (SAS) microprocessor. The switch also contains the circuitry of a Local Interface Network (LIN) slave node, which provides source current for and communicates the switch or sensor states of the Electronic Vehicle Information Center (EVIC) switches, the remote radio switches and the horn switch over the LIN data bus to the SAS, which is also the LIN master node and a gateway to the Controller Area Network (CAN) data bus. This Diagnostic Trouble Code (DTC) will set if there is a loss of LIN Bus communication between the Steering Control Module (SCM) and the Right Steering Wheel Switch (Speed Control Switch).