B1351 Code - Ignition Key-In Circuit Short To Battery
Quick Answer
The B1351 diagnostic trouble code indicates that there is a short circuit between the ignition key-in circuit and the vehicle's battery. Common causes include Wiring damage or corrosion, Faulty ignition switch, Short circuit in the key-in 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
- B1351 indicates Ignition Key-In Circuit Short To Battery.
- Common causes
- Common causes include Wiring damage or corrosion, Faulty ignition switch, Short circuit in the key-in 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B1351 Description
The B1351 diagnostic trouble code indicates that there is a short circuit between the ignition key-in circuit and the vehicle's battery. This issue can affect the vehicle's performance by potentially causing electrical malfunctions related to the ignition system. The key-in circuit is responsible for detecting when the ignition key is inserted and in the correct position to start the vehicle. A short to the battery can disrupt this detection process and lead to starting problems or issues with other electrical components that rely on this signal.
Common Causes of B1351
- Wiring damage or corrosion
- Faulty ignition switch
- Short circuit in the key-in circuit
- Malfunctioning control module
- Incorrectly installed aftermarket accessories
Symptoms of B1351
- Intermittent starting problems
- Inability to start the vehicle
- Malfunctioning key-in detection system
- Random electrical issues
- Illumination of the check engine light
How to Fix B1351
- Perform a thorough visual inspection of the key-in circuit wiring and connectors for any signs of damage or corrosion.
- Test the ignition switch for proper functionality and replace if necessary.
- Use a multimeter to check for a short circuit in the key-in circuit and repair or replace any damaged components.
- Inspect the control module for any faults and reprogram or replace as needed.
- Clear the diagnostic trouble codes from the vehicle's system memory and test the ignition key-in circuit for proper operation.
Cost to Fix B1351
The typical repair costs for resolving a B1351 code can vary depending on the specific cause of the issue. On average, the parts and labor for this repair could range from $150 to $500. However, it's important to note that diagnostic time and labor rates at auto repair shops can fluctuate based on various factors. It's recommended to consult with a local auto repair shop for a more accurate estimate tailored to your vehicle's make and model.
Need more information about the B1351 code?
Need more information on how to fix the B1351 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1351 code diagnosed by a professional: Find a repair shop in your area
Code B1351 Information for Specific Makes
- B1351 Hyundai — Passenger-Side Air Bag Module First Stage Open
- B1351 KIA — Passenger-Side Air Bag Module First Stage Open
Frequently Asked Questions about B1351 Code
What does OBDII code B1351 mean?
OBDII code B1351 indicates a malfunction in the ignition key-in circuit, specifically showing a short to battery, which means the system detects a constant signal as if the key is always in the ignition.
What are common symptoms of code B1351?
Common symptoms include the vehicle not starting, issues with the ignition system, or the dashboard warning lights illuminating, particularly those related to the immobilizer or security system.
What could cause code B1351 to trigger?
Potential causes include a faulty ignition switch, damaged wiring or connectors in the key-in circuit, or a malfunctioning Body Control Module (BCM) that is not receiving the correct signals.
Can I drive my car with code B1351?
While it may be possible to drive the car, it is not advisable as the code indicates an issue that could lead to starting problems or affect other electrical systems in the vehicle.
How can I diagnose code B1351?
To diagnose code B1351, you can start by visually inspecting the ignition switch and wiring for damage, then use a multimeter to test for continuity and proper voltage in the key-in circuit.
What repairs are typically needed for code B1351?
Repairs may include replacing a faulty ignition switch, repairing damaged wiring, or reprogramming or replacing the Body Control Module (BCM) if it's found to be defective.
Is it safe to reset the code B1351?
Resetting the code may temporarily clear the error, but it is essential to address the underlying issue to prevent reoccurrence and ensure the vehicle functions properly.
How can I prevent code B1351 from coming back?
To prevent code B1351 from recurring, ensure all electrical connections are secure, maintain the ignition system, and regularly check for wear and tear on wiring and components related to the ignition circuit.
What tools do I need to fix code B1351?
Tools you may need include a multimeter for testing electrical circuits, basic hand tools for removing components, and a code reader or scanner to monitor the system and clear codes after repairs.
Discuss the causes and fixes for B1351 OBDII Code
Code B1351 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.