AutoCodes – Ford – B1352 Ford

B1352 Ford Code - Ignition Key-In Circuit Failure

Quick Answer

The Instrument Cluster (IC) receives the key-in-ignition warning status from the Smart Junction Box (SJB) over the Medium Speed Controller Area Network (MS-CAN). Common causes include Faulty Ignition Key-In Switch (Part of the ignition switch), Ignition Key-In Switch harness is open or shorted, Ignition Key-In Switch circuit poor electrical connection. 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: B1352 Ford indicates Ignition Key-In Circuit Failure.
Common causes: Common causes include Faulty Ignition Key-In Switch (Part of the ignition switch), Ignition Key-In Switch harness is open or shorted, Ignition Key-In Switch circuit poor electrical connection.
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.

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Code Popularity 100,443

How popular is this code, among other codes? Medium

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 15, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1352 Ford Description

The Instrument Cluster (IC) receives the key-in-ignition warning status from the Smart Junction Box (SJB) over the Medium Speed Controller Area Network (MS-CAN). The key-in-ignition warning switch (part of the ignition switch) is hardwired to the SJB through the circuit. When the key is inserted into the ignition lock cylinder, the key-in-ignition switch closes and supplies voltage to the SJB. The SJB monitors the door ajar input from the LH front door and the key-in-ignition switch status. When the key is inserted into the ignition lock cylinder and the LH front door is open or ajar, the SJB sends the IC a chime request message to sound the key-in-ignition warning chime. The headlamps on warning chime sound when the driver door is opened with the ignition switch in the OFF position, the key is not in the ignition lock cylinder, and the headlamp switch is in the PARK or HEADLAMP ON position.

OBDII Code B1352 Ford - Ignition Key-In Circuit Failure - AutoCodes.com — B1352 Ford Code - Ignition Key-In Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B1352 Ford?

Faulty Ignition Key-In Switch (Part of the ignition switch)
Ignition Key-In Switch harness is open or shorted
Ignition Key-In Switch circuit poor electrical connection
Faulty Smart Junction Box (SJB)

How to Fix the DTC B1352 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 B1352 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 B1352 Ford Code

1. What are the common symptoms of OBDII code B1352 Ford (Ignition Key-In Circuit Failure)?

- The common symptoms include the inability to start the vehicle, intermittent starting issues, and the ignition key not being recognized.

2. What are the possible causes of OBDII code B1352 Ford?

- Possible causes include a faulty ignition key cylinder, a damaged key, wiring issues in the key-in circuit, or a malfunctioning anti-theft system.

3. How can I diagnose the cause of OBDII code B1352 Ford?

- Diagnosis involves checking the ignition key, inspecting the wiring in the key-in circuit, and testing the anti-theft system for any faults using a diagnostic scanner.

4. Can I still drive my vehicle with OBDII code B1352 Ford?

- It is not recommended to drive the vehicle with this code as it may lead to starting issues or potential immobilization of the vehicle.

5. How can I repair OBDII code B1352 Ford (Ignition Key-In Circuit Failure)?

- Repair options include replacing the ignition key cylinder, repairing damaged wiring, ensuring the key is in good condition, or resetting the anti-theft system.

6. Are there any DIY tips for troubleshooting OBDII code B1352 Ford?

- DIY tips include checking the key for any visible damage, inspecting the wiring for loose connections, and ensuring the key is inserted properly into the ignition cylinder.

7. Will resetting the OBDII code B1352 Ford fix the issue permanently?

- Resetting the code may temporarily clear the error, but it is essential to address the underlying cause to prevent the problem from recurring.

8. Is it necessary to visit a mechanic for OBDII code B1352 Ford diagnosis and repair?

- It is recommended to seek professional help from a mechanic with experience in diagnosing and repairing ignition key-in circuit issues to ensure proper resolution.

9. Can extreme weather conditions affect OBDII code B1352 Ford?

- Extreme weather conditions can potentially worsen existing issues related to the ignition key-in circuit, leading to starting problems or triggering the code.

10. How long does it typically take to repair OBDII code B1352 Ford?

- The repair time can vary depending on the exact cause of the issue, but it may take a few hours to a day for diagnosis and repair by a skilled mechanic.