AutoCodes – Generic – B238E

B238E Code - Hi Beam Switch Circuit Low

Quick Answer

The Cluster monitors the Hi Beam Switch Circuit. Common causes include Faulty Multifunction Switch, Multifunction Switch harness is open or shorted, Multifunction Switch circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B238E indicates Hi Beam Switch Circuit Low.
Common causes
Common causes include Faulty Multifunction Switch, Multifunction Switch harness is open or shorted, Multifunction Switch circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 648
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Dec 04, 2019
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Code B238E Description

The Cluster monitors the Hi Beam Switch Circuit. The Diagnostic Trouble Code (DTC) is set when the Cluster detects the High Beam Switch Input circuit voltage is less than the expected value.
OBDII Code B238E - Hi Beam Switch Circuit Low - AutoCodes.com
B238E Code - Hi Beam Switch Circuit Low

What are the Possible Causes of the DTC B238E?

  • Faulty Multifunction Switch
  • Multifunction Switch harness is open or shorted
  • Multifunction Switch circuit poor electrical connection
  • Faulty Cluster

How to Fix the DTC B238E?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B238E code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Need Help with the Code?

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Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B238E Code

1. What are the common symptoms of OBDII code B238E (Hi Beam Switch Circuit Low)?

The common symptoms include malfunctioning high beam headlights, difficulty in switching between high and low beams, and possibly an illuminated dashboard warning light.

2. What are the possible causes of OBDII code B238E (Hi Beam Switch Circuit Low)?

Potential causes of this code include a faulty hi beam switch, damaged wiring or connectors in the hi beam circuit, or a malfunctioning body control module.

3. How can I diagnose the OBDII code B238E (Hi Beam Switch Circuit Low)?

Diagnosing this code involves using a diagnostic scanner to retrieve the code, checking the hi beam switch for proper operation, inspecting the wiring and connectors for damage, and testing the body control module.

4. Can a DIY enthusiast repair OBDII code B238E (Hi Beam Switch Circuit Low)?

Depending on your skill level, you may be able to repair this code by replacing the faulty hi beam switch, repairing damaged wiring, or addressing any issues with the body control module. However, professional help may be required for more complex repairs.

5. Are there any quick tips for fixing OBDII code B238E (Hi Beam Switch Circuit Low)?

Quick tips for addressing this code include checking the fuse related to the hi beam circuit, ensuring proper ground connections, and performing a visual inspection of the hi beam switch and associated components.

6. Is it safe to continue driving with OBDII code B238E (Hi Beam Switch Circuit Low) unresolved?

While it may be safe to drive during the day with this code, it is not recommended to drive at night or in low visibility conditions as the malfunctioning hi beam switch can affect your ability to use the headlights effectively.

7. How much does it typically cost to repair OBDII code B238E (Hi Beam Switch Circuit Low)?

The cost of repairing this code can vary depending on the root cause of the issue, the labor rates in your area, and whether you choose OEM or aftermarket parts. It's advisable to get estimates from different mechanics or repair shops.

8. Can extreme weather conditions trigger OBDII code B238E (Hi Beam Switch Circuit Low)?

Extreme weather conditions, such as heavy rain or snow, can potentially exacerbate issues related to the hi beam switch circuit if there are existing faults or vulnerabilities in the system.

9. Will resetting the OBDII system clear the B238E (Hi Beam Switch Circuit Low) code?

While resetting the OBDII system may temporarily clear the code, it is likely to reappear if the underlying issue causing the hi beam switch circuit low condition is not addressed and resolved.

10. How long does it take to repair OBDII code B238E (Hi Beam Switch Circuit Low)?

The repair time for this code can vary depending on the complexity of the issue, the availability of parts, and the skill level of the technician. It could range from a quick fix to a more involved repair that may take a few hours or longer.

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