OBD Guide
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U1076

Invalid Or Missing Data For Primary Id

U1076 is an OBD-II diagnostic trouble code meaning: Invalid Or Missing Data For Primary Id. Common causes: damage to the can bus or wiring harness, malfunction of one of the electronic modules. Estimated repair cost: $17–89.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine light comes on
  • The car goes into emergency mode
  • Lost connection with some systems
  • Reduced engine performance
  • Errors in the operation of other electronic systems

Causes

  • Damage to the CAN bus or wiring harness
  • Malfunction of one of the electronic modules
  • Poor contact in connectors
  • Problems with module power supply
  • Software failure in ECU

How to Fix

  1. Check the integrity of the CAN bus
  2. Inspect module connectors and connections
  3. Check power supply of all modules
  4. Read error codes of all systems
  5. Update ECU firmware if necessary

Related codes

U1077U1078U1079

FAQ

What does the U1076 code mean?

U1076 is an OBD-II diagnostic trouble code that indicates: Invalid Or Missing Data For Primary Id

What causes a U1076 error code?

The most common causes of U1076 include: Damage to the CAN bus or wiring harness; Malfunction of one of the electronic modules; Poor contact in connectors; Problems with module power supply.

How do I fix a U1076 diagnostic trouble code?

To fix U1076: Check the integrity of the CAN bus. Inspect module connectors and connections. Check power supply of all modules. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1076?

Limited driving only, diagnose soon

How much does it cost to fix U1076?

The estimated repair cost for U1076 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat