U1112
Invalid Or Missing Data For Primary Id
U1112 is an OBD-II diagnostic trouble code meaning: Invalid Or Missing Data For Primary Id. Common causes: damage to the can bus, poor contact in module connectors. Estimated repair cost: ~$167.
Symptoms
- Check Engine Light Is On
- Unstable engine operation
- Disabling some vehicle systems
- Problems with diagnostics via scanner
Causes
- Damage to the CAN bus
- Poor contact in module connectors
- Malfunction of one of the electronic modules
- Software failure in the module
- Problems with module power supply
How to Fix
- Check the integrity of the CAN bus
- Inspect and clean all module connectors
- Check power and ground of modules
- Read error codes from all modules
- If necessary, reflash or replace the faulty module
Related codes
FAQ
What does the U1112 code mean?
U1112 is an OBD-II diagnostic trouble code that indicates: Invalid Or Missing Data For Primary Id
What causes a U1112 error code?
The most common causes of U1112 include: Damage to the CAN bus; Poor contact in module connectors; Malfunction of one of the electronic modules; Software failure in the module.
How do I fix a U1112 diagnostic trouble code?
To fix U1112: Check the integrity of the CAN bus. Inspect and clean all module connectors. Check power and ground of modules. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1112?
Yes, but get it checked soon
How much does it cost to fix U1112?
The estimated repair cost for U1112 is ~$167. Actual cost depends on your vehicle, location, and labor rates.
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