AutoCodes – Generic – B1B70

B1B70 Code - Up-Front Left Satellite Acceleration Sensor Internal

Quick Answer

Two front impact sensors are used on vehicles equipped with dual front airbags, one left side and one right side. Common causes include Faulty Front Left Impact Sensor, Front Left Impact Sensor harness is open or shorted, Front Left Impact 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: B1B70 indicates Up-Front Left Satellite Acceleration Sensor Internal.
Common causes: Common causes include Faulty Front Left Impact Sensor, Front Left Impact Sensor harness is open or shorted, Front Left Impact 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 6,115

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 Aug 21, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1B70 Description

Two front impact sensors are used on vehicles equipped with dual front airbags, one left side and one right side. One sensor is located on the back side of each vertical member of the radiator support. The impact sensors perform their own self test using power supplied by the Occupant Restraint Controller (ORC) then communicate this status back to the ORC with periodic updates. The impact sensor performs a self test for internal circuitry at power up during the initialization process, and continuously through the ignition cycle every 10 ms.

OBDII Code B1B70 - Up-Front Left Satellite Acceleration Sensor Internal - AutoCodes.com — B1B70 Code - Up-Front Left Satellite Acceleration Sensor Internal

What does this mean?

What are the Possible Causes of the DTC B1B70?

Faulty Front Left Impact Sensor
Front Left Impact Sensor harness is open or shorted
Front Left Impact Sensor circuit poor electrical connection
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC B1B70?

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 B1B70 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 B1B70 code?

Need more information on how to fix the B1B70 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1B70 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1B70 Chrysler — Up-Front Left Satellite Acceleration Sensor Internal
B1B70 Dodge — Up-Front Left Satellite Acceleration Sensor Internal
B1B70 Jeep — Up-Front Left Satellite Acceleration Sensor Internal
B1B70 Mitsubishi — Up-Front Left Satellite Acceleration Sensor Internal
B1B70 RAM — Up-Front Left Satellite Acceleration Sensor Internal

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 B1B70 Code

1. What are the common symptoms of OBDII code B1B70 (Up-Front Left Satellite Acceleration Sensor Internal)?

The common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the vehicle's airbag system.

2. What are some possible causes of OBDII code B1B70?

Possible causes of this code include a malfunctioning up-front left satellite acceleration sensor, wiring issues, or a faulty airbag control module.

3. How serious is OBDII code B1B70?

OBDII code B1B70 related to the up-front left satellite acceleration sensor internal can impact the proper functioning of the airbag system, so it is considered a serious issue that should be addressed promptly.

4. Can I continue driving with OBDII code B1B70 present?

It is not recommended to continue driving with OBDII code B1B70 present as it may compromise the effectiveness of the airbag system in the event of a collision.

5. How can I diagnose OBDII code B1B70?

Diagnosing OBDII code B1B70 typically involves using a diagnostic scanner to retrieve the code, inspecting the up-front left satellite acceleration sensor and related wiring, and testing the airbag system for proper functionality.

6. What is the typical repair for OBDII code B1B70?

The typical repair for OBDII code B1B70 involves addressing the root cause of the issue, which may include replacing the up-front left satellite acceleration sensor, repairing damaged wiring, or reprogramming the airbag control module.

7. Can I reset OBDII code B1B70 without fixing the underlying issue?

While you can clear the code temporarily, it is not recommended to reset OBDII code B1B70 without addressing the underlying problem as it may lead to safety risks in the event of an accident.

8. Are there any DIY repair tips for OBDII code B1B70?

DIY repair for OBDII code B1B70 may be challenging due to the complexity of the airbag system. It is advisable to consult a qualified mechanic or technician for proper diagnosis and repair.

9. How much does it cost to fix OBDII code B1B70?

The cost of fixing OBDII code B1B70 can vary depending on the root cause of the issue, the extent of the repairs needed, and the labor rates of the repair shop. It is recommended to obtain a professional diagnosis for an accurate estimate.

10. Is OBDII code B1B70 a common issue in certain vehicle makes or models?

OBDII code B1B70 related to the up-front left satellite acceleration sensor internal can occur in various vehicle makes and models equipped with airbag systems utilizing this sensor technology.