OBD Guide
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B238E

Hi Beam Switch Circuit Low

B238E is an OBD-II diagnostic trouble code meaning: Hi Beam Switch Circuit Low. Common causes: open or short circuit in wiring harness, high beam switch malfunction. Estimated repair cost: $22–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • High beam does not turn on
  • High beam turns on spontaneously
  • High beam flashing

Causes

  • Open or short circuit in wiring harness
  • High beam switch malfunction
  • Problems with the lighting control module
  • Corrosion of contacts or connectors

How to Fix

  1. Check wiring harness for damage
  2. Check the high beam switch
  3. Check voltage in switch circuit
  4. Replace faulty components

Related codes

B238DB238F

FAQ

What does the B238E code mean?

B238E is an OBD-II diagnostic trouble code that indicates: Hi Beam Switch Circuit Low

What causes a B238E error code?

The most common causes of B238E include: Open or short circuit in wiring harness; High beam switch malfunction; Problems with the lighting control module; Corrosion of contacts or connectors.

How do I fix a B238E diagnostic trouble code?

To fix B238E: Check wiring harness for damage. Check the high beam switch. Check voltage in switch circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B238E?

Limited driving only, diagnose soon

How much does it cost to fix B238E?

The estimated repair cost for B238E is $22–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat