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Engine-Codes – Lincoln – B1305 Lincoln

B1305 Lincoln Code - Accessory Delay Relay Coil Circuit Short To Ground

Quick Answer

The B1305 diagnostic trouble code for Lincoln vehicles indicates a problem with the Accessory Delay Relay Coil Circuit Short To Ground. Common causes include Shorted or damaged wiring in the accessory delay relay circuit, Faulty accessory delay relay, Corrosion or poor connections in the relay circuit. 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
B1305 Lincoln indicates Accessory Delay Relay Coil Circuit Short To Ground.
Common causes
Common causes include Shorted or damaged wiring in the accessory delay relay circuit, Faulty accessory delay relay, Corrosion or poor connections in the relay circuit.
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 17, 2024
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Code B1305 Lincoln Description

The B1305 diagnostic trouble code for Lincoln vehicles indicates a problem with the Accessory Delay Relay Coil Circuit Short To Ground. The accessory delay relay is responsible for controlling the power supply to various accessories in the vehicle, such as the radio, power windows, and interior lights. When this circuit is shorted to ground, it means that there is an unintended connection between the relay coil and the vehicle's chassis or body, causing a disruption in the normal operation of the accessories.

OBDII Code B1305 Lincoln - Accessory Delay Relay Coil Circuit Short To Ground
B1305 Lincoln Code - Accessory Delay Relay Coil Circuit Short To Ground

Common Causes of B1305 Lincoln

  1. Shorted or damaged wiring in the accessory delay relay circuit.
  2. Faulty accessory delay relay.
  3. Corrosion or poor connections in the relay circuit.
  4. Electrical issues in the vehicle's wiring harness.
  5. Previous water damage or exposure to moisture causing a short circuit.

Symptoms of B1305 Lincoln

  1. Inoperative power windows or radio.
  2. Interior lights not turning on or flickering.
  3. Accessories turning on and off randomly.
  4. Fuse for accessories repeatedly blowing.
  5. Battery drain when the vehicle is turned off.

How to Fix B1305 Lincoln

  1. Begin by conducting a thorough inspection of the accessory delay relay circuit to identify any visible signs of damage, corrosion, or loose connections.
  2. Test the accessory delay relay using a multimeter to determine if it is functioning correctly. Replace the relay if it is found to be faulty.
  3. Check the wiring harness for any shorts or damage. Repair or replace any compromised wiring as needed.
  4. Clear the diagnostic trouble code from the vehicle's computer using a scan tool after completing the repairs.
  5. Test the affected accessories to ensure they are functioning properly after the repair process.

Cost to Fix B1305 Lincoln

The typical repair costs for addressing a B1305 code related to the Accessory Delay Relay Coil Circuit Short To Ground can vary depending on the extent of the damage and the specific components that need to be replaced. In general, the cost of parts for this repair can range from $50 to $150, while the labor costs may fall between $100 and $200. This estimate does not include any diagnostic fees that may be charged by the auto repair shop. It is advisable to consult with a professional technician to obtain a more accurate cost estimate based on the specific circumstances of your vehicle. Labor rates at auto repair shops typically range from $80 to $150 per hour, but these rates can vary based on location and other factors.

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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 B1305 Lincoln Code

1. What are the common symptoms of OBDII code B1305 in a Lincoln related to the Accessory Delay Relay Coil Circuit Short To Ground issue?

The common symptoms include accessory delay functions not working, such as power windows, radio delay, and interior lights delay.

2. What could cause the Accessory Delay Relay Coil Circuit Short To Ground issue in a Lincoln triggering OBDII code B1305?

Possible causes include a short to ground in the wiring harness, a faulty accessory delay relay, or a damaged control module.

3. How can I diagnose the Accessory Delay Relay Coil Circuit Short To Ground issue in my Lincoln when OBDII code B1305 appears?

You can diagnose the issue by inspecting the wiring for any visible damage, testing the accessory delay relay, and checking the control module for proper operation.

4. Can I still drive my Lincoln with the OBDII code B1305 related to the Accessory Delay Relay Coil Circuit Short To Ground issue?

It is generally safe to drive the vehicle with this code, but you may experience inconvenience due to the malfunctioning accessory delay functions.

5. Is it possible to repair the Accessory Delay Relay Coil Circuit Short To Ground issue in a Lincoln myself?

If you have experience with automotive electrical systems, you may be able to repair the issue yourself by identifying and fixing the short to ground or replacing the faulty components.

6. Will resetting the OBDII code B1305 related to the Accessory Delay Relay Coil Circuit Short To Ground issue make it go away permanently?

Simply resetting the code may not permanently resolve the issue. It is essential to diagnose the root cause and address it to prevent the code from reappearing.

7. How urgent is it to address the OBDII code B1305 related to the Accessory Delay Relay Coil Circuit Short To Ground issue in a Lincoln?

While it may not be urgent, addressing the issue promptly is recommended to restore the proper functioning of accessory delay features in your Lincoln.

8. Can a damaged fuse cause the OBDII code B1305 in a Lincoln related to the Accessory Delay Relay Coil Circuit Short To Ground issue?

A damaged fuse could potentially lead to the issue if it affects the power supply to the accessory delay relay or control module.

9. Are there any specific tools required to diagnose the OBDII code B1305 related to the Accessory Delay Relay Coil Circuit Short To Ground issue in a Lincoln?

Basic automotive diagnostic tools such as a multimeter, wiring diagram, and possibly a scan tool capable of reading OBDII codes will be helpful in diagnosing this issue.

10. How much can I expect to spend on repairing the Accessory Delay Relay Coil Circuit Short To Ground issue in my Lincoln triggered by OBDII code B1305?

The cost of repair can vary depending on the exact cause of the issue, but it may involve expenses for parts replacement, labor, and diagnostic services.

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