AutoCodes – Ford – B1302 Ford

B1302 Ford Code - Accessory Delay Relay Coil Circuit Failure

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: B1302 Ford indicates Accessory Delay Relay Coil Circuit Failure.
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 5,286

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 B1302 Ford 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 B1302 Ford - Accessory Delay Relay Coil Circuit Failure - AutoCodes.com — B1302 Ford Code - Accessory Delay Relay Coil Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B1302 Ford?

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 B1302 Ford?

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 B1302 Ford 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 B1302 Ford Code

1. What are the common symptoms of OBDII code B1302 Ford (Accessory Delay Relay Coil Circuit Failure)?

- Common symptoms include malfunctioning power windows, interior lights not working properly, and issues with the accessory delay feature.

2. What causes the OBDII code B1302 Ford to trigger (Accessory Delay Relay Coil Circuit Failure)?

- The code is usually triggered by a faulty accessory delay relay or issues with the wiring in the circuit.

3. How can I diagnose the OBDII code B1302 Ford (Accessory Delay Relay Coil Circuit Failure)?

- Diagnosis involves checking the accessory delay relay, inspecting the wiring for any damage, and testing the relay coil circuit for continuity.

4. Can I still drive my vehicle with the OBDII code B1302 Ford (Accessory Delay Relay Coil Circuit Failure)?

- While it may be possible to drive the vehicle, it is recommended to address the issue promptly to avoid further electrical problems.

5. How do I repair OBDII code B1302 Ford (Accessory Delay Relay Coil Circuit Failure)?

- Repair typically involves replacing the faulty accessory delay relay or repairing any damaged wiring in the circuit.

6. Is it safe to reset the OBDII code B1302 Ford (Accessory Delay Relay Coil Circuit Failure) and clear it from the system?

- It is safe to clear the code after making the necessary repairs to see if the issue has been resolved.

7. Can a DIY enthusiast fix the OBDII code B1302 Ford (Accessory Delay Relay Coil Circuit Failure)?

- Depending on the level of expertise, a DIY enthusiast may be able to diagnose and repair this issue, especially if familiar with automotive electrical systems.

8. How much does it cost to repair the OBDII code B1302 Ford (Accessory Delay Relay Coil Circuit Failure) at a mechanic?

- Repair costs can vary depending on the labor rates and parts needed, but it is usually a relatively inexpensive fix compared to other automotive repairs.

9. Will the OBDII code B1302 Ford (Accessory Delay Relay Coil Circuit Failure) affect my vehicle's performance?

- While the code itself may not affect performance, the underlying electrical issue could lead to further problems if left unresolved.

10. How often does the OBDII code B1302 Ford (Accessory Delay Relay Coil Circuit Failure) occur in Ford vehicles?

- This code is not extremely common but can occur in Ford vehicles with accessory delay systems, usually in older models or vehicles with high mileage.