U0209
Lost Communication With Seat Control Module B
U0209 is an OBD-II diagnostic trouble code meaning: Lost Communication With Seat Control Module B. Common causes: open or short circuit in the module power supply circuit, damage to the wiring harness to the module. Estimated repair cost: $56–167.
Symptoms
- Seat adjustment functions do not work
- Heated seat doesn't work
- Check Engine Light Is On
- Errors in the memory of other modules
- Seat does not save position settings
Causes
- Open or short circuit in the module power supply circuit
- Damage to the wiring harness to the module
- Seat control module B malfunction
- Connector problems or contact corrosion
- Main ECU malfunction
How to Fix
- Check fuses associated with the seat system
- Inspect the wiring harness and module connectors for damage.
- Check the supply voltage and ground on the module
- Scan other modules for related errors
- Replace seat control module B if necessary
- Repair only from an authorized dealer
Related codes
Error U0209 by Vehicle Brand
FAQ
What does the U0209 code mean?
U0209 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Seat Control Module B
What causes a U0209 error code?
The most common causes of U0209 include: Open or short circuit in the module power supply circuit; Damage to the wiring harness to the module; Seat control module B malfunction; Connector problems or contact corrosion.
How do I fix a U0209 diagnostic trouble code?
To fix U0209: Check fuses associated with the seat system. Inspect the wiring harness and module connectors for damage.. Check the supply voltage and ground on the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0209?
Yes, but get it checked soon
How much does it cost to fix U0209?
The estimated repair cost for U0209 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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