AutoCodes – Generic – B1459

B1459 Code - Wiper Washer Pump Motor Relay Coil Circuit Open

Quick Answer

The Body Control Module (BCM) monitors the Wiper Washer Pump Motor Relay. Common causes include Faulty Wiper Washer Pump Motor Relay, Wiper Washer Pump Motor Relay harness is open or shorted, Wiper Washer Pump Motor Relay 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: B1459 indicates Wiper Washer Pump Motor Relay Coil Circuit Open.
Common causes: Common causes include Faulty Wiper Washer Pump Motor Relay, Wiper Washer Pump Motor Relay harness is open or shorted, Wiper Washer Pump Motor Relay 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.

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Code Popularity 4,724

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 12, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1459 Description

The Body Control Module (BCM) monitors the Wiper Washer Pump Motor Relay. The BCM sets the OBDII code when the Wiper Washer Pump Motor Relay is not to factory specifications.

OBDII Code B1459 - Wiper Washer Pump Motor Relay Coil Circuit Open - AutoCodes.com — B1459 Code - Wiper Washer Pump Motor Relay Coil Circuit Open

What does this mean?

What are the Possible Causes of the DTC B1459?

Faulty Wiper Washer Pump Motor Relay
Wiper Washer Pump Motor Relay harness is open or shorted
Wiper Washer Pump Motor Relay circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1459?

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 B1459 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.

Need more information about the B1459 code?

Need more information on how to fix the B1459 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1459 code diagnosed by a professional: Find a repair shop in your area

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 B1459 Code

1. What are common symptoms of OBDII code B1459 (Wiper Washer Pump Motor Relay Coil Circuit Open)?

The common symptoms include inoperative windshield wipers, washer pump not working, and a warning light on the dashboard.

2. What causes the OBDII code B1459 to be triggered?

This code is typically triggered by a malfunction in the wiper washer pump motor relay coil circuit, which can be caused by a faulty relay, damaged wiring, or a defective motor.

3. How do I diagnose the issue related to code B1459?

Diagnosing the issue involves checking the wiper washer pump motor relay, inspecting the wiring for any damage, and testing the motor for proper functionality using a multimeter.

4. Can I continue driving with OBDII code B1459 present?

It is not recommended to drive with this code present, as it can affect your visibility on the road during inclement weather conditions.

5. How can I repair OBDII code B1459?

Repairing this code may involve replacing the wiper washer pump motor relay, repairing any damaged wiring, or replacing the washer pump motor if necessary.

6. Are there any DIY tips for fixing OBDII code B1459?

DIY enthusiasts can start by checking the relay and wiring connections for any visible issues before proceeding to replace any faulty components.

7. Is it necessary to reset the trouble code after repairing OBDII code B1459?

Yes, it is important to clear the trouble code using an OBDII scanner after repairing the issue to reset the system and ensure the warning light is turned off.

8. How much does it typically cost to repair OBDII code B1459 at a mechanic?

The cost of repairing this code at a mechanic can vary depending on the extent of the issue, but it may range from $100 to $300, including parts and labor.

9. Can extreme weather conditions impact the occurrence of OBDII code B1459?

Yes, extreme weather conditions like snow, ice, or heavy rain can put additional strain on the wiper washer system, potentially leading to issues triggering this code.

10. How can I prevent OBDII code B1459 from occurring in the future?

Regularly inspecting and maintaining the wiper washer system, including checking the relay, wiring, and motor, can help prevent issues that may trigger this code.