What Does U1201 Mean?
Secondary seat control communication fault on the SCP network. This typically indicates a second seat module (passenger seat or rear seat) has lost network communication.
Common Causes
40%
Failed passenger or rear seat control module
30%
Wiring damage under passenger or rear seat from track movement
20%
Body Control Module communication error with secondary seat modules
10%
SCP network bus fault affecting multiple seat control nodes
Diagnostic Steps
1
Step 1: Identify which specific seat (passenger, rear) has lost network communication via scan tool
2
Step 2: Verify power supply and ground at affected seat module under seat
3
Step 3: Inspect wiring harness under affected seat for chafing, pinching, or connection issues
4
Step 4: Measure SCP bus voltage at seat module connector to confirm network signal presence
5
Step 5: Replace affected seat control module if electrical tests confirm proper circuits
Estimated Repair Cost
$200 - $800
Parts + labor, varies by vehicle and location
Secondary seat control communication fault on the SCP network. This typically indicates a second seat module (passenger seat or rear seat) has lost network communication.
The most common cause of U1201 (SCP (J1850) Invalid or Missing Data for Seat Motion / Control) is: Failed passenger or rear seat control module
Typical repair costs for U1201 range from $200 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Passenger or rear seat adjustment may be inoperative. Seat memory and coordinated adjustment features will not function properly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U1201 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 Network / Power Seat System
Difficulty
Type
Manufacturer
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
