OBD Guide

U1183

Invalid Or Missing Data For Primary Id

U1183 is an OBD-II diagnostic trouble code meaning: Invalid Or Missing Data For Primary Id. Common causes: damage to the can bus wiring harness, malfunction of one of the electronic modules. Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Check Engine light comes on
  • Unstable engine operation
  • Malfunctions of the car's electronic systems
  • Lost communication with one or more modules
  • Limitation of functionality of vehicle systems

Causes

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

How to Fix

  1. Check the integrity of the CAN bus wiring harness
  2. Check power and grounding of all connected modules
  3. Clean the connector contacts and check their condition
  4. Scan all modules for additional errors
  5. Update or reflash module software

Related codes

FAQ

What does the U1183 code mean?

U1183 is an OBD-II diagnostic trouble code that indicates: Invalid Or Missing Data For Primary Id

What causes a U1183 error code?

The most common causes of U1183 include: Damage to the CAN bus wiring harness; Malfunction of one of the electronic modules; Problems with module power supply; Corrosion or poor contact in connectors.

How do I fix a U1183 diagnostic trouble code?

To fix U1183: Check the integrity of the CAN bus wiring harness. Check power and grounding of all connected modules. Clean the connector contacts and check their condition. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1183?

Yes, but get it checked soon

How much does it cost to fix U1183?

The estimated repair cost for U1183 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat