AutoCodesInfiniti – B1038 Infiniti

B1038 Infiniti Code - Crash Zone Sensor

Quick Answer

The Crash Zone Sensor is the main “G” sensor that generates a signal voltage when it detects deceleration beyond the specified level caused by a frontal vehicle collision. Common causes include Faulty Crash Zone Sensor, Crash Zone Sensor harness is open or shorted, Crash Zone 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
B1038 Infiniti indicates Crash Zone Sensor.
Common causes
Common causes include Faulty Crash Zone Sensor, Crash Zone Sensor harness is open or shorted, Crash Zone 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 1,583
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 18, 2024
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Code B1038 Infiniti Description

The Crash Zone Sensor is the main “G” sensor that generates a signal voltage when it detects deceleration beyond the specified level caused by a frontal vehicle collision.
When the Air Bag Diagnosis Sensor Unit (ACU) defines both signal voltage of the “G” sensor and the safing sensor to be that of a collision which exceeds a specified level, the driving circuit switches on and feeds the electric ignitor of both driver and passenger air bags and pre-tensioner seat belt.
The Crash Zone Sensor has an integrated type of the “G” sensor element for frontal collision with output terminals for signal voltage.
OBDII Code B1038 Infiniti - Crash Zone Sensor - AutoCodes.com
B1038 Infiniti Code - Crash Zone Sensor

What are the Possible Causes of the DTC B1038 Infiniti?

  • Faulty Crash Zone Sensor
  • Crash Zone Sensor harness is open or shorted
  • Crash Zone Sensor circuit poor electrical connection
  • Faulty Air Bag Diagnosis Sensor Unit

How to Fix the DTC B1038 Infiniti?

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 B1038 Infiniti 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 B1038 Infiniti code?

Need more information on how to fix the B1038 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1038 Infiniti code diagnosed by a professional: Find a repair shop in your area

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

  • Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
  • Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
  • Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
  • Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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 B1038 Infiniti Code

1. What does OBDII code B1038 mean on an Infiniti?

Code B1038 indicates an issue with the crash zone sensor, which is part of the airbag system responsible for detecting frontal impacts.

2. What are the symptoms of code B1038 in an Infiniti?

Common symptoms include the airbag warning light illuminating on the dashboard and the potential for the airbag system to be disabled.

3. What causes code B1038 to appear in an Infiniti?

This code can be caused by a faulty crash zone sensor, damaged wiring or connectors, or corrosion in the sensor's electrical connections.

4. Can I still drive my Infiniti with code B1038?

While the vehicle may still be drivable, the airbag system may not function correctly, which is a critical safety concern.

5. How do you diagnose code B1038 in an Infiniti?

A professional will typically use a scan tool to confirm the code, inspect the crash zone sensor and wiring, and check for physical damage or corrosion.

6. How do you fix code B1038 in an Infiniti?

Repairs may involve replacing the crash zone sensor, repairing or replacing damaged wiring, and clearing the code with a scan tool.

7. Where is the crash zone sensor located in an Infiniti?

The crash zone sensor is usually mounted at the front of the vehicle, near the radiator support or bumper area.

8. What tools are needed to repair code B1038 in an Infiniti?

Common tools include a scan tool for diagnostics, a multimeter for testing electrical connections, and basic hand tools for sensor replacement.

9. How much does it cost to fix code B1038 on an Infiniti?

Repair costs can vary but may range from $200 to $600, depending on whether the sensor or wiring needs to be replaced and labor costs.

10. Can I clear code B1038 without fixing the issue?

Clearing the code without addressing the underlying problem is not recommended, as the airbag system may remain non-functional.

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