U0278
Lost Communication With Seat Control Module L
U0278 is an OBD-II diagnostic trouble code meaning: Lost Communication With Seat Control Module L. Common causes: open or short circuit in the module power supply circuit, damage to the wiring harness to the module. Estimated repair cost: $56–278.
Symptoms
- Seat adjustment functions do not work
- Check Engine Light Is On
- Seat memory settings disappear
- Seat heating or ventilation may not work
Causes
- Open or short circuit in the module power supply circuit
- Damage to the wiring harness to the module
- Seat control module malfunction
- Connector problems or contact corrosion
- Module software failure
How to Fix
- Check fuses associated with the module
- Inspect the wiring harness and connectors for damage.
- Check power and ground on the module
- Scan the module for additional errors
- Replace the seat control module if necessary
- Repair only from an authorized dealer
Related codes
Error U0278 by Vehicle Brand
FAQ
What does the U0278 code mean?
U0278 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Seat Control Module L
What causes a U0278 error code?
The most common causes of U0278 include: Open or short circuit in the module power supply circuit; Damage to the wiring harness to the module; Seat control module malfunction; Connector problems or contact corrosion.
How do I fix a U0278 diagnostic trouble code?
To fix U0278: Check fuses associated with the module. Inspect the wiring harness and connectors for damage.. Check power and ground on the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0278?
Yes, but get it checked soon
How much does it cost to fix U0278?
The estimated repair cost for U0278 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat