AutoCodes – Generic – B1494

B1494 Code - Ignition Cylinder Sensor Ground 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: B1494 indicates Ignition Cylinder Sensor Ground 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.

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Code Popularity 4,852

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 Apr 14, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1494 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 B1494 - Ignition Cylinder Sensor Ground Short - AutoCodes.com — B1494 Code - Ignition Cylinder Sensor Ground Short

What does this mean?

What are the Possible Causes of the DTC B1494?

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 B1494?

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 B1494 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 B1494 code?

Need more information on how to fix the B1494 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1494 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1494 Hyundai — Passenger Occupant Classification System Wrong ID
B1494 KIA — Passenger Occupant Classification System Wrong ID

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 B1494 Code

1. What are the common symptoms of OBDII code B1494 (Ignition Cylinder Sensor Ground Short)?

- Common symptoms include issues with starting the vehicle, erratic engine performance, and possible stalling while driving.

2. What can cause the Ignition Cylinder Sensor Ground Short (B1494) code to appear?

- The code can be triggered by a short circuit in the wiring harness, a faulty ignition cylinder sensor, or a problem with the vehicle's ECM.

3. How can I diagnose the source of the Ignition Cylinder Sensor Ground Short (B1494) code?

- Use a multimeter to test for continuity in the wiring harness, check the ignition cylinder sensor for proper function, and scan the ECM for any related fault codes.

4. What are the recommended repair tips for addressing code B1494 (Ignition Cylinder Sensor Ground Short)?

- Start by inspecting the wiring harness for any damage or shorts, replace the ignition cylinder sensor if necessary, and clear the fault codes before retesting the system.

5. Are there any safety precautions to keep in mind when working on the Ignition Cylinder Sensor Ground Short issue?

- Always disconnect the vehicle's battery before working on any electrical components to prevent the risk of shock or damage to the vehicle's systems.

6. Can a DIY enthusiast fix the Ignition Cylinder Sensor Ground Short problem at home?

- Depending on the level of expertise and access to tools, some DIY enthusiasts may be able to address this issue, but it is recommended to seek professional help for accurate diagnosis and repair.

7. How urgent is it to address the OBDII code B1494 (Ignition Cylinder Sensor Ground Short)?

- While the vehicle may still be operable with this code present, it is important to address it promptly to prevent potential issues with starting the vehicle or engine performance.

8. Will driving with the Ignition Cylinder Sensor Ground Short code cause further damage to the vehicle?

- Continuing to drive with this code present may lead to worsening symptoms, such as complete engine failure or safety hazards, so it is best to address the issue promptly.

9. Can resetting the ECM clear the B1494 (Ignition Cylinder Sensor Ground Short) code permanently?

- Resetting the ECM may clear the code temporarily, but if the underlying issue causing the code is not resolved, it is likely to reappear upon driving the vehicle again.

10. How much can I expect to pay for professional repairs related to the OBDII code B1494 (Ignition Cylinder Sensor Ground Short)?

- Repair costs can vary depending on the extent of the issue, but expect to pay anywhere from $100 to $300 for diagnosis and repair of the Ignition Cylinder Sensor Ground Short problem.