OBD Guide
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U2010

Illumination Switch Circuit Short

U2010 is an OBD-II diagnostic trouble code meaning: Illumination Switch Circuit Short. Common causes: wiring damage, light switch malfunction. Estimated repair cost: $6–33.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–33 (est.)

Symptoms

  • Incorrect headlight operation
  • Side lights do not turn on
  • Interior lighting does not work
  • Flashing light when turned on
  • Dashboard warning

Causes

  • Wiring damage
  • Light switch malfunction
  • Problems in the control unit
  • Short circuit in the circuit
  • Contact corrosion

How to Fix

  1. Check wiring integrity
  2. Check light switch
  3. Inspect the control unit for damage
  4. Replace damaged components
  5. Check contacts for corrosion

Related codes

U2000U2011U2012

FAQ

What does the U2010 code mean?

U2010 is an OBD-II diagnostic trouble code that indicates: Illumination Switch Circuit Short

What causes a U2010 error code?

The most common causes of U2010 include: Wiring damage; Light switch malfunction; Problems in the control unit; Short circuit in the circuit.

How do I fix a U2010 diagnostic trouble code?

To fix U2010: Check wiring integrity. Check light switch. Inspect the control unit for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U2010?

Limited driving only, diagnose soon

How much does it cost to fix U2010?

The estimated repair cost for U2010 is $6–33. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat