AutoCodes – Generic – B1352

B1352 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 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 34,942

How popular is this code, among other codes? Low

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

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

What does this mean?

What are the Possible Causes of the DTC B1352?

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?

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 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.

Need more information about the B1352 code?

Need more information on how to fix the B1352 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1352 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1352 Buick — Passenger Front Airbag Resistance Too Low
B1352 Cadillac — Passenger Front Airbag Resistance Too Low
B1352 Chevrolet — Passenger Front Airbag Resistance Too Low
B1352 Ford — Ignition Key-In Circuit Failure
B1352 GMC — Passenger Front Airbag Resistance Too Low
B1352 Hyundai — Passenger-Side Air Bag Module First Stage Resistance Low
B1352 KIA — Passenger-Side Air Bag Module First Stage Resistance Low
B1352 Lincoln — Ignition Key-In Circuit Failure
B1352 Mercury — Ignition Key-In Circuit Failure

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 Code

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

- The common symptoms include difficulty starting the vehicle, intermittent starting issues, and the inability to turn the ignition key.

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

- Some possible causes of B1352 include a faulty ignition switch, damaged wiring in the key-in circuit, or a defective key-in switch.

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

- To diagnose B1352, you can use a diagnostic scanner to retrieve the trouble codes, inspect the ignition key cylinder, check the key-in switch, and examine the wiring for any visible damage.

4. Can a DIYer repair OBDII code B1352 at home?

- Repairing B1352 may require some technical knowledge and tools. It is recommended to consult a professional mechanic who can accurately diagnose and repair the issue.

5. Is it safe to drive with OBDII code B1352 present?

- It is not recommended to drive with B1352 as it can lead to unexpected starting problems and potential safety hazards. It is best to address the issue promptly.

6. How much does it typically cost to repair OBDII code B1352?

- The cost of repairing B1352 can vary depending on the root cause of the issue, labor costs, and parts needed. It is advisable to get a few quotes from different repair shops.

7. Can a dead battery cause OBDII code B1352 to appear?

- While a dead battery can sometimes trigger electrical issues, it is not a common cause of B1352. It is more likely related to the ignition key-in circuit itself.

8. Are there any preventive measures to avoid OBDII code B1352?

- Regular maintenance of the ignition system, including the key-in circuit components, can help prevent issues like B1352. Avoiding rough handling of the ignition key can also be beneficial.

9. Will disconnecting the battery reset OBDII code B1352?

- Disconnecting the battery may reset the code temporarily, but if the underlying issue is not repaired, the code is likely to reappear after driving the vehicle for a certain period.

10. Can water damage cause OBDII code B1352?

- Water damage to the key-in circuit components, such as the key-in switch or wiring, can potentially trigger B1352. Ensure that these components are properly sealed and protected from moisture.