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Engine-Codes – Generic – B2174

B2174 Code - Window Driver Rear Remote Up Switch Short To Battery

Quick Answer

The diagnostic trouble code B2174 indicates that there is a short to the battery in the window driver rear remote up switch. Common causes include Faulty window switch, Wiring issues in the rear window switch circuit, Short circuit in the wiring harness. 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
B2174 indicates Window Driver Rear Remote Up Switch Short To Battery.
Common causes
Common causes include Faulty window switch, Wiring issues in the rear window switch circuit, Short circuit in the wiring harness.
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 Sep 12, 2024
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Code B2174 Description

The diagnostic trouble code B2174 indicates that there is a short to the battery in the window driver rear remote up switch. This means that the switch that controls the rear window to go up is sending a signal to the battery when it shouldn't be. This issue can affect the vehicle's performance by potentially causing the rear window to malfunction or operate erratically. It can also drain the vehicle's battery if the switch is constantly sending power to it.

OBDII Code B2174 - Window Driver Rear Remote Up Switch Short To Battery
B2174 Code - Window Driver Rear Remote Up Switch Short To Battery

Common Causes of B2174

  1. Faulty window switch
  2. Wiring issues in the rear window switch circuit
  3. Short circuit in the wiring harness
  4. Corrosion in the electrical connections
  5. Internal fault in the window motor

Symptoms of B2174

  1. Rear window not responding to the up switch
  2. Rear window going up and down intermittently
  3. Battery drain when the vehicle is not in use
  4. Electrical system malfunctions

How to Fix B2174

  1. Begin by disconnecting the vehicle's battery to prevent any electrical accidents.
  2. Inspect the rear window switch for any visible damage or signs of a short circuit.
  3. Check the wiring harness for any frayed wires or signs of corrosion.
  4. Test the window motor to ensure it is functioning correctly.
  5. Replace the faulty switch, repair any damaged wiring, and reassemble the components.

Cost to Fix B2174

The cost to repair a window driver rear remote up switch short to battery issue can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the parts for this repair can range from $50 to $200, while the labor costs can be anywhere from $100 to $300. The total cost of the repair can therefore be estimated to be between $150 and $500. It is important to note that these are rough estimates and actual costs may vary based on the factors mentioned earlier.

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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 B2174 Code

1. What does OBDII code B2174 mean?

Code B2174 indicates that the driver’s rear window remote up switch circuit has a short to battery, causing improper window operation.

2. What are the symptoms of code B2174?

Common symptoms include the rear driver-side window not operating correctly, the window moving up unexpectedly, or the remote window switch being unresponsive.

3. What causes code B2174 to occur?

The code is often caused by damaged wiring, a short circuit, a faulty window switch, or a malfunctioning window control module.

4. Can code B2174 drain the car battery?

Yes, a short to battery can create a constant drain on the electrical system, potentially leading to battery depletion over time.

5. How do you diagnose code B2174?

Diagnosis involves inspecting the wiring and connectors for damage, checking for a short circuit, testing the window switch, and verifying functionality of the window control module.

6. Can I still drive with code B2174 active?

Yes, you can drive, but the rear driver-side window may not function properly, and the short circuit could lead to other electrical issues if not addressed.

7. How do you fix code B2174?

Repairs typically include fixing or replacing damaged wiring, replacing a faulty window switch, or repairing/replacing the window control module if needed.

8. How much does it cost to fix code B2174?

The cost will vary depending on the root cause but can range from $50 to $300 for parts and labor, depending on whether wiring repairs or component replacements are required.

9. Can I clear code B2174 without making repairs?

Clearing the code without addressing the underlying issue may temporarily resolve the warning, but the problem is likely to return and could cause further damage.

10. What tools are needed to troubleshoot code B2174?

Necessary tools include a multimeter for testing electrical circuits, a diagnostic scanner to verify the code, and basic hand tools for accessing switches and wiring.

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