What Does U1041 Mean?
The module requesting vehicle speed data is not receiving valid information over the SCP (Standard Corporate Protocol) J1850 network. This indicates a communication breakdown between the vehicle speed sensor/module and other control modules that need this data.
Common Causes
35%
Faulty vehicle speed sensor (VSS) or wheel speed sensors not transmitting data
30%
Damaged or corroded wiring in the SCP communication network
20%
Failed instrument cluster or body control module not broadcasting speed data
10%
Low voltage or poor power supply to network modules
5%
Faulty network terminating resistor or open circuit in bus
Diagnostic Steps
1
Step 1: Monitor live vehicle speed data on scan tool while driving to verify if speed signal is present on network
2
Step 2: Check for other network communication codes and verify which module is reporting the missing data
3
Step 3: Inspect SCP network wiring for damage, corrosion, or loose connections at all module connectors
4
Step 4: Test voltage at VSS or wheel speed sensors and verify proper signal output
5
Step 5: Use scan tool bidirectional controls or network monitoring to identify which module is failing to transmit
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
The module requesting vehicle speed data is not receiving valid information over the SCP (Standard Corporate Protocol) J1850 network. This indicates a communication breakdown between the vehicle speed sensor/module and other control modules that need this data.
The most common cause of U1041 (SCP (J1850) Invalid or Missing Data for Vehicle Speed) is: Faulty vehicle speed sensor (VSS) or wheel speed sensors not transmitting data
Typical repair costs for U1041 range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Speedometer may be inoperative and cruise control, ABS, or traction control systems may not function properly. Vehicle is drivable but should be repaired promptly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U1041 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
Network Communication / Vehicle Speed
Difficulty
Type
Manufacturer
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
