AutoCodes – Lincoln – B1305 Lincoln

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

Quick Answer

The accessory delay relay receives voltage at all times from the Smart Junction Box (SJB). Common causes include Faulty Accessory Delay Relay, Accessory Delay Relay harness is open or shorted, Accessory Delay Relay circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: B1305 Lincoln indicates Accessory Delay Relay Coil Circuit Short To Ground.
Common causes: Common causes include Faulty Accessory Delay Relay, Accessory Delay Relay harness is open or shorted, Accessory Delay Relay circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 1,519

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 29, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1305 Lincoln Description

The accessory delay relay receives voltage at all times from the Smart Junction Box (SJB). The SJB controls the coil side ground of the accessory delay relay and activates the accessory delay relay when the ignition switch is in the ON position. The accessory delay relay remains active for an additional 10 minutes when the ignition switch is in the OFF position or until the driver door is opened. The accessory delay relay provides voltage to the door lock switches, power windows and roof opening panel (if equipped).

OBDII Code B1305 Lincoln - Accessory Delay Relay Coil Circuit Short To Ground - AutoCodes.com — B1305 Lincoln Code - Accessory Delay Relay Coil Circuit Short To Ground

What does this mean?

What are the Possible Causes of the DTC B1305 Lincoln?

Faulty Accessory Delay Relay
Accessory Delay Relay harness is open or shorted
Accessory Delay Relay circuit poor electrical connection
Faulty Smart Junction Box (SJB)

How to Fix the DTC B1305 Lincoln?

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 B1305 Lincoln 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.

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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.