Engine-CodesChrysler – B231B Chrysler

B231B Chrysler Code - Rear Wiper Motor Control Circuit Low

Quick Answer

The B231B Chrysler code indicates a problem with the rear wiper motor control circuit being detected as low. Common causes include Faulty rear wiper motor, Damaged wiring or connectors in the control circuit, Corrosion in the control module. 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
B231B Chrysler indicates Rear Wiper Motor Control Circuit Low.
Common causes
Common causes include Faulty rear wiper motor, Damaged wiring or connectors in the control circuit, Corrosion in the control module.
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.
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code B231B Chrysler Description

The B231B Chrysler code indicates a problem with the rear wiper motor control circuit being detected as low. This means that the voltage in the circuit is below the specified threshold, which can lead to issues with the rear wiper motor's operation. The rear wiper motor control circuit is responsible for controlling the speed and movement of the rear wiper on the vehicle. When this circuit is not functioning properly, it can result in the rear wiper not working at all, working intermittently, or operating at an incorrect speed.

OBDII Code B231B Chrysler - Rear Wiper Motor Control Circuit Low
B231B Chrysler Code - Rear Wiper Motor Control Circuit Low

Common Causes of B231B Chrysler

  1. Faulty rear wiper motor.
  2. Damaged wiring or connectors in the control circuit.
  3. Corrosion in the control module.
  4. Electrical issues in the vehicle's system.
  5. Water intrusion causing damage to the rear wiper motor control circuit.

Symptoms of B231B Chrysler

  1. Rear wiper not moving at all.
  2. Rear wiper moving at an incorrect speed.
  3. Rear wiper working intermittently.
  4. Rear wiper stopping abruptly during operation.
  5. Rear wiper making unusual noises while in operation.

How to Fix B231B Chrysler

  1. Begin by inspecting the rear wiper motor, wiring, and connectors for any visible damage or corrosion.
  2. Test the voltage in the rear wiper motor control circuit to determine if it is below the specified threshold.
  3. Replace the rear wiper motor if it is found to be faulty.
  4. Repair or replace any damaged wiring or connectors in the control circuit.
  5. Clear any water intrusion and ensure proper sealing to prevent future damage.

Cost to Fix B231B Chrysler

The typical repair costs for addressing a rear wiper motor control circuit low issue can range from $150 to $300, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's recommended to check local rates for a more accurate estimate.

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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 B231B Chrysler Code

1. What does the OBDII code B231B mean on a Chrysler vehicle?

B231B indicates a problem with the rear wiper motor control circuit, specifically that the circuit is operating at a low voltage.

2. What are common symptoms of the B231B code?

Symptoms may include the rear wiper not functioning, moving intermittently, or being stuck in one position.

3. What causes the B231B code to appear?

Common causes include a faulty rear wiper motor, damaged wiring or connectors in the circuit, or a failing rear wiper switch.

4. How can I diagnose the B231B code?

Check for loose, corroded, or damaged wiring and connectors in the rear wiper circuit. Test the rear wiper motor with a multimeter to confirm proper operation.

5. Can a blown fuse cause the B231B code?

Yes, a blown fuse in the rear wiper circuit can lead to this code by disrupting the power supply.

6. How do I fix the B231B code on my Chrysler?

Repairs may include replacing the rear wiper motor, repairing damaged wiring, cleaning corroded connectors, or replacing a blown fuse.

7. Is the B231B code serious?

While it doesn't affect drivability, it can be inconvenient, especially in poor weather conditions where rear visibility is important.

8. Can I clear the B231B code without fixing the issue?

Clearing the code without addressing the root cause will likely result in the code returning when the issue recurs.

9. How much does it cost to fix the B231B code?

Costs vary, but replacing a rear wiper motor ranges from $100 to $300, while wiring repairs may be less expensive.

10. Can a bad body control module (BCM) cause the B231B code?

While rare, a malfunctioning BCM could potentially cause issues with the rear wiper circuit and trigger this code.

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