U1025
Invalid Or Missing Data For Primary Id
U1025 is an OBD-II diagnostic trouble code meaning: Invalid Or Missing Data For Primary Id. Common causes: broken or damaged can bus wires, oxidation of contacts in connectors. Estimated repair cost: $6–56.
Symptoms
- Check Engine Light Is On
- There may be malfunctions in various vehicle systems
- Loss of data in the on-board computer
- Problems starting the engine in rare cases
Causes
- Broken or damaged CAN bus wires
- Oxidation of contacts in connectors
- Malfunction of one of the electronic modules
- Problems with power supply of electronic units
- Software glitch in the system
How to Fix
- Check the integrity of the CAN bus wiring
- Inspect and clean the contacts in the connectors
- Check power supply of all connected modules
- Read error codes from all systems to pinpoint the problem
- If necessary, reflash the problematic module
Related codes
FAQ
What does the U1025 code mean?
U1025 is an OBD-II diagnostic trouble code that indicates: Invalid Or Missing Data For Primary Id
What causes a U1025 error code?
The most common causes of U1025 include: Broken or damaged CAN bus wires; Oxidation of contacts in connectors; Malfunction of one of the electronic modules; Problems with power supply of electronic units.
How do I fix a U1025 diagnostic trouble code?
To fix U1025: Check the integrity of the CAN bus wiring. Inspect and clean the contacts in the connectors. Check power supply of all connected modules. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1025?
Yes, but get it checked soon
How much does it cost to fix U1025?
The estimated repair cost for U1025 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat