What Does U1063 Mean?
This code indicates missing or invalid data from a different Primary ID module on the SCP J1850 network than U1062. Multiple U-codes typically point to a network-wide problem rather than individual module failures.
Common Causes
35%
SCP bus wiring short to ground or short to power affecting multiple modules
30%
Failed control module transmitting on this specific Primary ID
20%
Corroded or damaged connector at critical network junction point
10%
Aftermarket accessory or alarm system interfering with bus communication
5%
Water intrusion in module or connector causing intermittent communication
Diagnostic Steps
1
Step 1: Identify the specific module associated with this Primary ID using manufacturer specifications
2
Step 2: Inspect all SCP bus connectors for corrosion, bent pins, or moisture intrusion
3
Step 3: Check for aftermarket accessories tied into the data bus and disconnect to test
4
Step 4: Monitor SCP bus signal with oscilloscope looking for proper voltage swing and message patterns
5
Step 5: Isolate suspected module by disconnecting it and checking if other network codes clear
Estimated Repair Cost
$150 - $1,500
Parts + labor, varies by vehicle and location
This code indicates missing or invalid data from a different Primary ID module on the SCP J1850 network than U1062. Multiple U-codes typically point to a network-wide problem rather than individual module failures.
The most common cause of U1063 (SCP (J1850) Invalid or Missing Data for Primary Id) is: SCP bus wiring short to ground or short to power affecting multiple modules
Typical repair costs for U1063 range from $150 to $1,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Loss of module communication may disable safety systems like ABS, traction control, or airbags. Vehicle operation may be compromised depending on affected modules.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U1063 to identify the root cause.
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Quick Info
Category
Network
System
Vehicle Communication Network
Difficulty
Type
Manufacturer
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