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B1374 Ford Code - Illuminated Entry Relay Short To Ground

Quick Answer

The B1374 Ford diagnostic trouble code (DTC) refers to an issue with the illuminated entry relay shorting to ground. Common causes include Short circuit in the wiring harness, Faulty illuminated entry relay, Corrosion or damage to wiring connections. 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
B1374 Ford indicates Illuminated Entry Relay Short To Ground.
Common causes
Common causes include Short circuit in the wiring harness, Faulty illuminated entry relay, Corrosion or damage to wiring connections.
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 10, 2024
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Code B1374 Ford Description

The B1374 Ford diagnostic trouble code (DTC) refers to an issue with the illuminated entry relay shorting to ground. This code indicates that there is a problem with the circuit that controls the illuminated entry system in the vehicle. The illuminated entry system is responsible for turning on interior lights when the doors are opened or when the key fob is pressed. When this system malfunctions, it can lead to a variety of issues such as the interior lights not turning on or flickering unpredictably.

OBDII Code B1374 Ford - Illuminated Entry Relay Short To Ground
B1374 Ford Code - Illuminated Entry Relay Short To Ground

Common Causes of B1374 Ford

  1. Short circuit in the wiring harness
  2. Faulty illuminated entry relay
  3. Corrosion or damage to wiring connections
  4. Electrical interference from aftermarket accessories
  5. Poor electrical grounding

Symptoms of B1374 Ford

  1. Interior lights not turning on when doors are opened
  2. Flickering interior lights
  3. Battery draining faster than usual
  4. Electrical issues with other components in the vehicle

How to Fix B1374 Ford

  1. Begin by conducting a thorough inspection of the wiring harness and connections to identify any visible damage or corrosion.
  2. Test the illuminated entry relay to determine if it is functioning properly. Replace the relay if necessary.
  3. Check for any loose or damaged wiring connections and repair or replace them as needed.
  4. Clear the DTC from the vehicle's computer using a diagnostic scanner.
  5. Test the illuminated entry system to ensure that the issue has been resolved and that the interior lights are functioning correctly.

Cost to Fix B1374 Ford

The cost of repairing the B1374 Ford code can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the repair for this issue could range from $100 to $300, including parts and labor. It is important to note that labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate. It is also recommended to address this issue promptly to prevent further damage and more costly repairs in the future.

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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 B1374 Ford Code

1. What are the common symptoms of OBDII code B1374 Ford (Illuminated Entry Relay Short To Ground)?

The common symptoms include illuminated entry system not working, interior lights not turning on, and possible draining of the battery.

2. What causes the OBDII code B1374 Ford (Illuminated Entry Relay Short To Ground)?

The code is typically caused by a short to ground in the illuminated entry relay circuit.

3. How can I diagnose the OBDII code B1374 Ford (Illuminated Entry Relay Short To Ground)?

Diagnosis involves inspecting the wiring and connections related to the illuminated entry relay, checking for any visible damage or shorts.

4. What are the possible repair options for the OBDII code B1374 Ford (Illuminated Entry Relay Short To Ground)?

Repair options include repairing or replacing damaged wiring, repairing the short to ground, or replacing the illuminated entry relay.

5. Can I fix the OBDII code B1374 Ford (Illuminated Entry Relay Short To Ground) myself?

If you have experience with automotive electrical systems and the necessary tools, you may be able to diagnose and repair this issue yourself. Otherwise, it's recommended to seek professional help.

6. Is it safe to continue driving with the OBDII code B1374 Ford (Illuminated Entry Relay Short To Ground)?

While the code itself may not affect the drivability of the vehicle, it's important to address the underlying issue to prevent any potential electrical problems in the future.

7. How much does it cost to repair the OBDII code B1374 Ford (Illuminated Entry Relay Short To Ground)?

The cost of repair can vary depending on the extent of the damage and whether you choose to do the repair yourself or take it to a mechanic. It's best to get a quote from a professional.

8. Can a faulty battery cause the OBDII code B1374 Ford (Illuminated Entry Relay Short To Ground)?

While a faulty battery can cause electrical issues in a vehicle, the specific cause of this code is related to a short to ground in the illuminated entry relay circuit.

9. Will resetting the OBDII code B1374 Ford (Illuminated Entry Relay Short To Ground) make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue is not fixed, the code is likely to return.

10. How long does it take to repair the OBDII code B1374 Ford (Illuminated Entry Relay Short To Ground)?

The repair time can vary depending on the complexity of the issue and the availability of parts. It's best to consult with a professional for a more accurate estimate.

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