What Does U0210 Mean?
The network has lost communication with Seat Control Module C, which typically controls a rear seat position (left or right depending on manufacturer). The module is not responding on the vehicle communication bus.
Common Causes
35%
Failed seat control module C with internal component failure
30%
Damaged wiring harness to rear seat control module
20%
Loose or corroded connector at rear seat control module location
10%
Loss of power or ground to seat control module C
5%
CAN bus communication circuit fault in rear of vehicle
Diagnostic Steps
1
Step 1: Locate seat control module C, typically under rear seat cushion or behind rear seat back
2
Step 2: Check wiring routing from front to rear for damage, pinch points, or routing through hinges
3
Step 3: Inspect connector at module for proper engagement, corrosion, or damage from moisture
4
Step 4: Verify power and ground circuits using multimeter with ignition on
5
Step 5: Test CAN bus communication integrity and replace module if all electrical tests pass
Estimated Repair Cost
$150 - $1,000
Parts + labor, varies by vehicle and location
The network has lost communication with Seat Control Module C, which typically controls a rear seat position (left or right depending on manufacturer). The module is not responding on the vehicle communication bus.
The most common cause of U0210 (Lost Communication With "Seat Control Module C") is: Failed seat control module C with internal component failure
Typical repair costs for U0210 range from $150 to $1,000, depending on the vehicle, location, and whether you do it yourself or go to a shop.
No safety impact on vehicle operation. Rear seat power adjustments, heating, or massage functions on the affected seat will not function.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0210 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
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.
