OBD Guide
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B1E30

3rd Row Seat Left Backrest Switch Stuck Forward

B1E30 is an OBD-II diagnostic trouble code meaning: 3rd Row Seat Left Backrest Switch Stuck Forward. Common causes: mechanical sticking of the switch, open or shorted wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Inability to adjust the seat back
  • Error indication on the instrument panel
  • Faulty seat folding system (if equipped)

Causes

  • Mechanical sticking of the switch
  • Open or shorted wiring harness
  • Backrest adjustment motor malfunction
  • Problems with the seat control unit

How to Fix

  1. Check the mechanical part of the switch for binding
  2. Test the wiring harness for an open or short.
  3. Check the operation of the seat back motor
  4. Scan the seat control unit for errors
  5. If necessary, replace the switch or motor

Related codes

B1E31B1E32B1E33

FAQ

What does the B1E30 code mean?

B1E30 is an OBD-II diagnostic trouble code that indicates: 3rd Row Seat Left Backrest Switch Stuck Forward

What causes a B1E30 error code?

The most common causes of B1E30 include: Mechanical sticking of the switch; Open or shorted wiring harness; Backrest adjustment motor malfunction; Problems with the seat control unit.

How do I fix a B1E30 diagnostic trouble code?

To fix B1E30: Check the mechanical part of the switch for binding. Test the wiring harness for an open or short.. Check the operation of the seat back motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1E30?

Limited driving only, diagnose soon

How much does it cost to fix B1E30?

The estimated repair cost for B1E30 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat