OBD Guide
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U1022

Invalid Or Missing Data For Primary Id

U1022 is an OBD-II diagnostic trouble code meaning: Invalid Or Missing Data For Primary Id. Common causes: damage to the wiring harness between modules, oxidation or poor contact in connectors. Estimated repair cost: $17–111.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–111 (est.)

Symptoms

  • Check Engine Light Is On
  • There may be malfunctions in various vehicle systems
  • Lost connection with some modules
  • Unstable operation of the engine or transmission

Causes

  • Damage to the wiring harness between modules
  • Oxidation or poor contact in connectors
  • Module software failure
  • Malfunction of one of the electronic modules
  • Problems with module power supply

How to Fix

  1. Check the integrity of the wiring harness between the modules
  2. Inspect and clean all contacts in the connectors
  3. Check power supply and grounding of modules
  4. Read error codes from all modules for accurate diagnostics
  5. If necessary, reflash or replace the faulty module

Related codes

U1000U1010U1021

FAQ

What does the U1022 code mean?

U1022 is an OBD-II diagnostic trouble code that indicates: Invalid Or Missing Data For Primary Id

What causes a U1022 error code?

The most common causes of U1022 include: Damage to the wiring harness between modules; Oxidation or poor contact in connectors; Module software failure; Malfunction of one of the electronic modules.

How do I fix a U1022 diagnostic trouble code?

To fix U1022: Check the integrity of the wiring harness between the modules. Inspect and clean all contacts in the connectors. Check power supply and grounding of modules. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1022?

Yes, but get it checked soon

How much does it cost to fix U1022?

The estimated repair cost for U1022 is $17–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat