What Does U1092 Mean?
This code indicates the receiving module cannot obtain valid primary identification data from another module on the J1850 SCP bus. Primary ID data typically includes critical module identification and status information required for normal vehicle operation.
Common Causes
40%
Failed or malfunctioning source control module not broadcasting ID
30%
Broken or shorted SCP bus wiring preventing data transmission
15%
Corroded or damaged module connector preventing communication
10%
Loss of power or ground to critical module
5%
Software corruption or module requiring reprogramming
Diagnostic Steps
1
Step 1: Determine which module is reporting U1092 and identify the expected source module for primary ID data
2
Step 2: Verify the source module has proper power and ground, check all relevant fuses and relays
3
Step 3: Use factory scan tool to attempt communication with the source module and verify it responds to requests
4
Step 4: Monitor SCP bus voltage and message traffic to confirm source module is actively transmitting
5
Step 5: Test wiring between modules for opens, shorts to ground, shorts to power, and proper termination resistance
Estimated Repair Cost
$200 - $1,200
Parts + labor, varies by vehicle and location
This code indicates the receiving module cannot obtain valid primary identification data from another module on the J1850 SCP bus. Primary ID data typically includes critical module identification and status information required for normal vehicle operation.
The most common cause of U1092 (SCP (J1850) Invalid or Missing Data for Primary Id) is: Failed or malfunctioning source control module not broadcasting ID
Typical repair costs for U1092 range from $200 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
May cause reduced vehicle functionality or prevent starting depending on which module's primary ID is missing. Certain safety systems may be disabled.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U1092 to identify the root cause.
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Quick Info
Category
Network
System
Communication Network
Difficulty
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