What Does U0260 Mean?
The vehicle network has lost communication with Seat Control Switch Module 'A', typically the driver's seat control module. This prevents the body control module from receiving input signals from seat adjustment switches.
Common Causes
40%
Faulty seat control switch module internal failure
25%
Damaged connector or corroded pins at seat control module
20%
Broken or chafed wiring under the seat from movement
10%
Power supply circuit open or fuse blown
5%
CAN bus network circuit fault affecting seat module
Diagnostic Steps
1
Step 1: Move driver's seat to full forward position for access and disconnect/reconnect the seat control module connector; inspect for corrosion or damaged pins
2
Step 2: Check for power and ground at the seat control module connector using a multimeter
3
Step 3: Inspect wiring harness under the seat for damage caused by seat track movement or pinching
4
Step 4: Test CAN bus circuits for proper voltage and resistance if module has power and ground
5
Step 5: Replace seat control switch module if all circuits test normal but communication remains lost
Estimated Repair Cost
$200 - $700
Parts + labor, varies by vehicle and location
The vehicle network has lost communication with Seat Control Switch Module 'A', typically the driver's seat control module. This prevents the body control module from receiving input signals from seat adjustment switches.
The most common cause of U0260 (Lost Communication With Seat Control Switch Module "A") is: Faulty seat control switch module internal failure
Typical repair costs for U0260 range from $200 to $700, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Not a direct safety issue. Driver may lose powered seat adjustment functionality but can continue to operate the vehicle safely in current seat position.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0260 to identify the root cause.
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Quick Info
Category
Network
System
Seat Control and Comfort Systems
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
