OBD Guide
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B2604

Power Sliding Door On/Off Switch Open Circuit

B2604 is an OBD-II diagnostic trouble code meaning: Power Sliding Door On/Off Switch Open Circuit. Common causes: broken or damaged wires in the switch circuit, sliding door on/off switch faulty. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Sliding door does not respond to on/off button
  • The door may open or close spontaneously
  • The malfunction indicator on the instrument panel lights up

Causes

  • Broken or damaged wires in the switch circuit
  • Sliding door on/off switch faulty
  • Poor contact in connectors
  • Problems with the sliding door control unit

How to Fix

  1. Check the integrity of the wiring in the switch circuit
  2. Test the switch for correct operation
  3. Clean and check contacts in connectors
  4. If necessary, replace the switch or damaged wires
  5. Check the sliding door control unit

Related codes

B2605B2606

FAQ

What does the B2604 code mean?

B2604 is an OBD-II diagnostic trouble code that indicates: Power Sliding Door On/Off Switch Open Circuit

What causes a B2604 error code?

The most common causes of B2604 include: Broken or damaged wires in the switch circuit; Sliding door on/off switch faulty; Poor contact in connectors; Problems with the sliding door control unit.

How do I fix a B2604 diagnostic trouble code?

To fix B2604: Check the integrity of the wiring in the switch circuit. Test the switch for correct operation. Clean and check contacts in connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2604?

Limited driving only, diagnose soon

How much does it cost to fix B2604?

The estimated repair cost for B2604 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat