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Engine-Codes – Generic – B1824

B1824 Code - Wiper Rear Park Sense Input Circuit Short To Battery

Quick Answer

The B1824 diagnostic trouble code (DTC) indicates a fault in the rear wiper system, specifically related to the park sense input circuit. Common causes include Damaged or frayed wiring in the rear wiper circuit, Corroded or loose electrical connections at the wiper motor or switch, Faulty rear wiper motor that is drawing excessive current. 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
B1824 indicates Wiper Rear Park Sense Input Circuit Short To Battery.
Common causes
Common causes include Damaged or frayed wiring in the rear wiper circuit, Corroded or loose electrical connections at the wiper motor or switch, Faulty rear wiper motor that is drawing excessive current.
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.
What is this?
Table of contents Created and updated by William Orellana on Oct 12, 2024
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Code B1824 Description

The B1824 diagnostic trouble code (DTC) indicates a fault in the rear wiper system, specifically related to the park sense input circuit. This code is triggered when the vehicle's onboard diagnostic system detects a short circuit in the wiring that connects the rear wiper motor to the battery. The park sense input circuit is responsible for signaling the wiper motor when to stop in the "park" position after use. When this circuit experiences a short to battery, it can cause the rear wiper to operate erratically or not at all, leading to potential visibility issues during inclement weather.

OBDII Code B1824 - Wiper Rear Park Sense Input Circuit Short To Battery
B1824 Code - Wiper Rear Park Sense Input Circuit Short To Battery

Common Causes of B1824

  1. Damaged or frayed wiring in the rear wiper circuit.
  2. Corroded or loose electrical connections at the wiper motor or switch.
  3. Faulty rear wiper motor that is drawing excessive current.
  4. Water intrusion or moisture in the electrical connectors.
  5. A malfunctioning park switch that fails to signal the wiper motor correctly.

Symptoms of B1824

  1. Rear wiper does not operate at all.
  2. Rear wiper operates continuously without stopping in the park position.
  3. Intermittent operation of the rear wiper, functioning erratically.
  4. Blown fuses related to the rear wiper system.
  5. Warning lights on the dashboard related to electrical issues.

How to Fix B1824

  1. Visual Inspection: Begin by inspecting the wiring and connectors associated with the rear wiper system for any visible damage, corrosion, or loose connections.
  2. Test the Circuit: Use a multimeter to check for continuity in the park sense input circuit and identify any shorts to battery or ground.
  3. Repair or Replace Wiring: If damaged wiring is found, repair or replace the affected sections to restore proper function.
  4. Check the Wiper Motor: Test the rear wiper motor for proper operation and current draw. Replace the motor if it is found to be faulty.
  5. Clear DTCs: After repairs, clear the diagnostic trouble codes using an OBD-II scanner and perform a test drive to ensure the issue is resolved.

Cost to Fix B1824

The cost to repair a B1824 code can vary widely based on the specific diagnosis and repairs needed. On average, the total cost could range from $100 to $500. This estimate includes parts such as wiring harnesses or a new wiper motor, which can cost between $50 to $300, and labor costs that typically range from $80 to $150 per hour. It's important to note that labor rates can differ significantly based on location, vehicle make and model, and engine type. In metropolitan areas or at dealerships, rates may be higher, while independent shops often offer more competitive pricing. Therefore, it is advisable to consult local repair shops for a more precise estimate tailored to your specific situation.

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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 B1824 Code

1. What are the common symptoms of OBDII code B1824?

The common symptoms of OBDII code B1824 include the rear wiper not parking correctly, the rear wiper not working at all, or the rear wiper functioning intermittently.

2. What causes the OBDII code B1824 to appear?

The OBDII code B1824, indicating Wiper Rear Park Sense Input Circuit Short To Battery, is typically caused by a short circuit in the rear wiper park sense input circuit that leads to the battery.

3. How can I diagnose the issue related to OBDII code B1824?

To diagnose the issue related to OBDII code B1824, you can use a diagnostic scan tool to check for the specific trouble code, inspect the wiring and connections related to the rear wiper system, and test the rear wiper motor for proper functionality.

4. Can I continue driving my vehicle with OBDII code B1824?

While you may be able to continue driving your vehicle with OBDII code B1824, it is recommended to address the issue promptly to prevent potential rear wiper malfunctions, especially during adverse weather conditions.

5. What are some repair tips for fixing OBDII code B1824?

Some repair tips for fixing OBDII code B1824 include checking and repairing any damaged wiring or connections in the rear wiper system, replacing the rear wiper motor if necessary, and resetting the trouble code after completing the repairs.

6. Is it possible to prevent OBDII code B1824 from occurring in the future?

To prevent OBDII code B1824 from occurring in the future, it is essential to perform regular maintenance checks on the rear wiper system, avoid overloading the rear wiper motor, and address any issues promptly to prevent further damage.

7. How long does it typically take to repair OBDII code B1824?

The time it takes to repair OBDII code B1824 can vary depending on the extent of the damage and the expertise of the person performing the repairs. In general, it may take anywhere from 1 to 3 hours to address this issue.

8. Can extreme weather conditions contribute to the occurrence of OBDII code B1824?

Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially contribute to the occurrence of OBDII code B1824 by putting additional strain on the rear wiper system components.

9. Are there any safety concerns associated with OBDII code B1824?

While OBDII code B1824 itself may not pose immediate safety concerns, a malfunctioning rear wiper system can impair visibility and compromise road safety, especially during adverse weather conditions. It is crucial to address this issue promptly.

10. Is it recommended to seek professional help for repairing OBDII code B1824?

If you are not confident in diagnosing or repairing the issue related to OBDII code B1824 on your own, it is advisable to seek professional help from a qualified automotive technician to ensure the problem is addressed correctly and efficiently.

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