What Does U0208 Mean?
The vehicle's network has lost communication with Seat Control Module A, typically the driver's seat module. This prevents the central control modules from communicating with the seat's electronic functions.
Common Causes
35%
Failed seat control module A with internal circuit board failure
30%
Damaged wiring harness under seat due to seat track movement or pinching
20%
Corroded or loose connector at seat control module
10%
Blown fuse or loss of power/ground to seat control module
5%
CAN bus network fault affecting seat module communication
Diagnostic Steps
1
Step 1: Locate seat control module A (usually under driver's seat, secured to seat frame or floor)
2
Step 2: Inspect wiring harness under seat for damage from seat movement, check for pinched or chafed wires
3
Step 3: Verify power and ground at the seat control module connector with ignition on
4
Step 4: Check connector terminals for corrosion, moisture, or pushed-back pins causing poor contact
5
Step 5: Test CAN communication lines and replace seat control module if all wiring and power circuits are good
Estimated Repair Cost
$150 - $900
Parts + labor, varies by vehicle and location
The vehicle's network has lost communication with Seat Control Module A, typically the driver's seat module. This prevents the central control modules from communicating with the seat's electronic functions.
The most common cause of U0208 (Lost Communication With "Seat Control Module A") is: Failed seat control module A with internal circuit board failure
Typical repair costs for U0208 range from $150 to $900, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Not a direct safety concern, but power seat adjustment, memory functions, and seat heating/cooling may be inoperable. Ensure driver can achieve proper seating position using manual adjustments if available.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0208 to identify the root cause.
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Quick Info
Category
Network
System
Body Control/Seat Control
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
