What Does U1014 Mean?
Similar to U1013, this code indicates a different primary module ID on the SCP J1850 network is not communicating properly. The receiving module cannot detect valid data messages from a specific networked component.
Common Causes
30%
Faulty antilock brake system (ABS) module or traction control module
28%
Damaged SCP bus wiring or connectors in the network harness
22%
Failed transmission control module (TCM) not responding on network
15%
Corroded or loose network module connectors causing intermittent communication
5%
Electrical interference or short to ground on SCP bus circuit
Diagnostic Steps
1
Step 1: Check battery voltage and ensure all fuses related to control modules are intact
2
Step 2: Determine which specific module ID corresponds to U1014 using manufacturer documentation
3
Step 3: Inspect the identified module's connectors for moisture, corrosion, or bent pins
4
Step 4: Measure SCP bus voltage at the suspect module (should see 0-7V signal activity)
5
Step 5: Test module power supply and ground circuits; swap or reprogram module if circuits test good
Estimated Repair Cost
$150 - $1,400
Parts + labor, varies by vehicle and location
Similar to U1013, this code indicates a different primary module ID on the SCP J1850 network is not communicating properly. The receiving module cannot detect valid data messages from a specific networked component.
The most common cause of U1014 (SCP (J1850) Invalid or Missing Data for Primary Id) is: Faulty antilock brake system (ABS) module or traction control module
Typical repair costs for U1014 range from $150 to $1,400, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Depending on the affected module, ABS, traction control, or transmission functions may be compromised. Exercise caution in adverse conditions until repaired.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U1014 to identify the root cause.
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Quick Info
Category
Network
System
Network Communication
Difficulty
Type
Manufacturer
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