OBD Guide
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U1014

Invalid Or Missing Data For Primary Id

U1014 is an OBD-II diagnostic trouble code meaning: Invalid Or Missing Data For Primary Id. Common causes: can bus problems, incompatible ecu firmware. Estimated repair cost: ~$167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
~$167 (est.)

Symptoms

  • The Check Engine light comes on
  • Limitation of functionality of some systems
  • Problems starting the engine
  • Malfunctions of electronic systems

Causes

  • CAN bus problems
  • Incompatible ECU firmware
  • Wiring harness damage
  • Incorrect module configuration
  • Module replacement without reprogramming

How to Fix

  1. Check connections and integrity of CAN bus wiring
  2. Read all error codes using a diagnostic scanner
  3. Check that the firmware of all modules is up to date
  4. Reconfigure modules
  5. Test the operation of the system after repair

Related codes

U1000U1013U1015

FAQ

What does the U1014 code mean?

U1014 is an OBD-II diagnostic trouble code that indicates: Invalid Or Missing Data For Primary Id

What causes a U1014 error code?

The most common causes of U1014 include: CAN bus problems; Incompatible ECU firmware; Wiring harness damage; Incorrect module configuration.

How do I fix a U1014 diagnostic trouble code?

To fix U1014: Check connections and integrity of CAN bus wiring. Read all error codes using a diagnostic scanner. Check that the firmware of all modules is up to date. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1014?

Yes, but get it checked soon

How much does it cost to fix U1014?

The estimated repair cost for U1014 is ~$167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat