OBD Guide
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U113D

Lost Communication With Master Power Window Switch

U113D is an OBD-II diagnostic trouble code meaning: Lost Communication With Master Power Window Switch. Common causes: broken or damaged wiring harness, poor contact in the switch connector. Estimated repair cost: $17–89.

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

Symptoms

  • Power windows do not work from the main switch
  • Fault indication on the instrument panel
  • Intermittent operation of power windows
  • The error is stored in the ECU memory

Causes

  • Broken or damaged wiring harness
  • Poor contact in the switch connector
  • Malfunction of the main power window switch
  • Problems with power or grounding of the circuit
  • Body control module malfunction

How to Fix

  1. Check the integrity of the wiring harness to the switch
  2. Clean and check contacts in connectors
  3. Check circuit power and grounding
  4. Test the main power window switch
  5. If necessary, replace the switch

Related codes

U113EU113FU1140

FAQ

What does the U113D code mean?

U113D is an OBD-II diagnostic trouble code that indicates: Lost Communication With Master Power Window Switch

What causes a U113D error code?

The most common causes of U113D include: Broken or damaged wiring harness; Poor contact in the switch connector; Malfunction of the main power window switch; Problems with power or grounding of the circuit.

How do I fix a U113D diagnostic trouble code?

To fix U113D: Check the integrity of the wiring harness to the switch. Clean and check contacts in connectors. Check circuit power and grounding. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U113D?

Limited driving only, diagnose soon

How much does it cost to fix U113D?

The estimated repair cost for U113D is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat