What Does U1208 Mean?
The control module cannot receive valid data from the power seat switch module over the SCP network. This affects power seat memory, adjustment controls, or heated seat functions.
Common Causes
35%
Failed seat control module or power seat switch assembly
30%
Damaged wiring harness under seat from movement or moisture
20%
Corroded connectors under seat from water intrusion or spills
15%
Poor ground connection at seat mounting points
Diagnostic Steps
1
Step 1: Inspect under seats for moisture, corrosion, or physical damage to wiring harnesses
2
Step 2: Check all connector integrity at seat control module and power seat switches
3
Step 3: Test power and ground circuits at seat control module with multimeter
4
Step 4: Move seat through full range of motion while monitoring live data for intermittent faults
5
Step 5: Verify communication between seat module and body control module on SCP network
Estimated Repair Cost
$100 - $500
Parts + labor, varies by vehicle and location
The control module cannot receive valid data from the power seat switch module over the SCP network. This affects power seat memory, adjustment controls, or heated seat functions.
The most common cause of U1208 (SCP (J1850) Invalid or Missing Data for Seat Switches) is: Failed seat control module or power seat switch assembly
Typical repair costs for U1208 range from $100 to $500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
No direct safety impact. Seats may not adjust properly which could affect driver visibility or control positioning. Vehicle remains safe to drive.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U1208 to identify the root cause.
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Quick Info
Category
Network
System
Power Seat Control System
Difficulty
Type
Manufacturer
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
