AutoCodes – Generic – B1493

B1493 Code - Ignition Cylinder Sensor Battery Short

Quick Answer

The Body Control Module (BCM) monitors the Ignition Cylinder Sensor. Common causes include Faulty Ignition Cylinder Sensor, Ignition Cylinder Sensor harness is open or shorted, Ignition Cylinder Sensor 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
B1493 indicates Ignition Cylinder Sensor Battery Short.
Common causes
Common causes include Faulty Ignition Cylinder Sensor, Ignition Cylinder Sensor harness is open or shorted, Ignition Cylinder Sensor 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 10,345
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 14, 2019
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Code B1493 Description

The Body Control Module (BCM) monitors the Ignition Cylinder Sensor. The BCM sets the OBDII code when the Ignition Cylinder Sensor is not to factory specifications.
OBDII Code B1493 - Ignition Cylinder Sensor Battery Short - AutoCodes.com
B1493 Code - Ignition Cylinder Sensor Battery Short

What are the Possible Causes of the DTC B1493?

  • Faulty Ignition Cylinder Sensor
  • Ignition Cylinder Sensor harness is open or shorted
  • Ignition Cylinder Sensor circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B1493?

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 B1493 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 B1493 code?

Need more information on how to fix the B1493 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1493 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • B1493 Hyundai β€” Passenger Occupant Classification System Communication Error
  • B1493 KIA β€” Passenger Occupant Classification System Communication Error
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 B1493 Code

1. What are the common symptoms of OBDII code B1493 (Ignition Cylinder Sensor Battery Short)?

The common symptoms include difficulty starting the vehicle, intermittent stalling, and an illuminated check engine light.

2. What are the possible causes of OBDII code B1493 (Ignition Cylinder Sensor Battery Short)?

Possible causes include a faulty ignition cylinder sensor, a short circuit in the sensor wiring, or a problem with the battery connection.

3. How can I diagnose the issue related to OBDII code B1493 (Ignition Cylinder Sensor Battery Short)?

A diagnostic scan tool can be used to retrieve the code and further diagnose the issue. Checking the sensor wiring and connections for any visible damage is also recommended.

4. Is it safe to continue driving with OBDII code B1493 (Ignition Cylinder Sensor Battery Short) present?

It is not recommended to continue driving with this code present, as it can lead to potential issues with starting the vehicle and may cause stalling while driving.

5. Can I repair OBDII code B1493 (Ignition Cylinder Sensor Battery Short) on my own?

Depending on your level of automotive expertise, you may be able to repair this issue on your own by replacing the faulty ignition cylinder sensor or repairing any damaged wiring.

6. How much does it typically cost to repair OBDII code B1493 (Ignition Cylinder Sensor Battery Short)?

The cost of repairs can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Are there any preventative measures I can take to avoid OBDII code B1493 (Ignition Cylinder Sensor Battery Short)?

Regularly checking and maintaining the ignition system, including the ignition cylinder sensor and wiring, can help prevent this code from occurring.

8. Will resetting the OBDII system clear the B1493 (Ignition Cylinder Sensor Battery Short) code?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear.

9. Can OBDII code B1493 (Ignition Cylinder Sensor Battery Short) affect the overall performance of the vehicle?

Yes, this code can affect the overall performance of the vehicle by causing starting problems, stalling, and potential safety issues while driving.

10. How urgent is it to address OBDII code B1493 (Ignition Cylinder Sensor Battery Short)?

It is recommended to address this code as soon as possible to prevent further issues with starting and driving the vehicle.

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