U1246
Invalid Or Missing Data For Primary Id
U1246 is an OBD-II diagnostic trouble code meaning: Invalid Or Missing Data For Primary Id. Common causes: damage to the can bus, problems with power supply of electronic modules. Estimated repair cost: $17–111.
Symptoms
- Check Engine light comes on
- There may be problems with the operation of some vehicle systems
- Intermittent communication between modules
- Errors in the operation of electronic systems
Causes
- Damage to the CAN bus
- Problems with power supply of electronic modules
- Malfunction of one of the control units
- Corroded or damaged connectors
- Problems with the module software
How to Fix
- Check the integrity of the CAN bus and connections
- Check power supply of all connected modules
- Scan all modules for errors
- Update module software
- Check and replace faulty modules if necessary
Related codes
FAQ
What does the U1246 code mean?
U1246 is an OBD-II diagnostic trouble code that indicates: Invalid Or Missing Data For Primary Id
What causes a U1246 error code?
The most common causes of U1246 include: Damage to the CAN bus; Problems with power supply of electronic modules; Malfunction of one of the control units; Corroded or damaged connectors.
How do I fix a U1246 diagnostic trouble code?
To fix U1246: Check the integrity of the CAN bus and connections. Check power supply of all connected modules. Scan all modules for errors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1246?
Yes, but get it checked soon
How much does it cost to fix U1246?
The estimated repair cost for U1246 is $17–111. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat