AutoCodes – Lincoln – B0070 Lincoln

B0070 Lincoln Code - Driver Seatbelt Pretensioner 'A' Deployment Control

Quick Answer

The Restraints Control Module (RCM) analyzes the deployment loop resistance to determine if a fault exists. Common causes include Faulty Driver Seatbelt Pretensioner 'A', Driver Seatbelt Pretensioner 'A' harness is open or shorted, Driver Seatbelt Pretensioner 'A' 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: B0070 Lincoln indicates Driver Seatbelt Pretensioner 'A' Deployment Control.
Common causes: Common causes include Faulty Driver Seatbelt Pretensioner 'A', Driver Seatbelt Pretensioner 'A' harness is open or shorted, Driver Seatbelt Pretensioner 'A' 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 2,463

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0070 Lincoln Description

The Restraints Control Module (RCM) analyzes the deployment loop resistance to determine if a fault exists. The value displayed in the PID is the deployment loop resistance measured by the RCM. If the value displayed is lower or higher than the desired range, the RCM can set a Diagnostic Trouble Code (DTC). As the deployment loop resistance drifts farther outside the desired range, the chance for a DTC increases. Small variations in resistance can occur due to the effect of road vibrations on terminal fit. Crimps and terminals can be affected by stress and harness movement and can cause an increase in resistance due to wire strain. These variables can result in an intermittent fault. For this reason, the test requires the PID value to be within the desired range before the fault is considered repaired, regardless if the module is reporting an on-demand DTC at the time of diagnosis. Following this direction helps make sure that minor changes in resistance do not create a repeat concern. This test uses the process of elimination to diagnose each part of the deployment loop circuit including:
- Wiring
- Connections
- Driver seatbelt anchor pretensioner
- RCM

OBDII Code B0070 Lincoln - Driver Seatbelt Pretensioner 'A' Deployment Control - AutoCodes.com — B0070 Lincoln Code - Driver Seatbelt Pretensioner 'A' Deployment Control

What does this mean?

What are the Possible Causes of the DTC B0070 Lincoln?

Faulty Driver Seatbelt Pretensioner 'A'
Driver Seatbelt Pretensioner 'A' harness is open or shorted
Driver Seatbelt Pretensioner 'A' circuit poor electrical connection
Faulty Restraints Control Module (RCM)

How to Fix the DTC B0070 Lincoln?

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 does this mean?

Code Tech Notes

B0070:11 Driver Seatbelt Pretensioner 'A' Deployment Control: Circuit Short to Ground
B0070:12 Driver Seatbelt Pretensioner 'A' Deployment Control: Circuit Short to Battery
B0070:13 Driver Seatbelt Pretensioner 'A' Deployment Control: Circuit Open
B0070:1A Driver Seatbelt Pretensioner 'A' Deployment Control: Circuit Resistance Below Threshold

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0070 Lincoln 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 B0070 Lincoln code?

Need more information on how to fix the B0070 Lincoln code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0070 Lincoln 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 B0070 Lincoln Code

1. What are the common symptoms of OBDII code B0070 in a Lincoln related to the Driver Seatbelt Pretensioner 'A' Deployment Control?

- Common symptoms include the airbag warning light staying illuminated on the dashboard and potential issues with the seatbelt pretensioner system.

2. What are some possible causes of OBDII code B0070 in a Lincoln?

- Possible causes can include a faulty seatbelt pretensioner, damaged wiring or connectors, or issues with the deployment control module.

3. How can I diagnose the root cause of OBDII code B0070 in my Lincoln?

- To diagnose the issue, a professional diagnostic scan tool can be used to read the specific fault codes and pinpoint the exact problem within the seatbelt pretensioner system.

4. Is it safe to drive my Lincoln with OBDII code B0070 present?

- It is not recommended to drive the vehicle with this code present, as it indicates a potential problem with the seatbelt pretensioner system, which is an important safety component.

5. Can I reset OBDII code B0070 in my Lincoln on my own?

- While you can attempt to clear the code using an OBDII scanner, it is crucial to address the underlying issue causing the fault code to prevent it from reoccurring.

6. How can I repair OBDII code B0070 related to the Driver Seatbelt Pretensioner 'A' Deployment Control in my Lincoln?

- Repair typically involves inspecting and repairing or replacing the seatbelt pretensioner, checking and repairing any damaged wiring or connectors, and ensuring proper functioning of the deployment control module.

7. Are there any DIY tips for troubleshooting OBDII code B0070 in a Lincoln?

- DIY tips include checking for visible signs of damage to the seatbelt pretensioner components, inspecting wiring for wear or breaks, and ensuring all connections are secure.

8. What is the role of the Driver Seatbelt Pretensioner 'A' Deployment Control in a Lincoln?

- The Driver Seatbelt Pretensioner 'A' Deployment Control is responsible for managing the deployment of the seatbelt pretensioner system in the event of a collision to help secure the occupant in place.

9. How serious is OBDII code B0070 in a Lincoln if left untreated?

- Leaving OBDII code B0070 untreated can compromise the effectiveness of the seatbelt pretensioner system, potentially putting the driver at risk in the event of an accident.

10. Can a Lincoln dealership or automotive professional help with diagnosing and repairing OBDII code B0070?

- Yes, a Lincoln dealership or qualified automotive professional will have the expertise and tools needed to accurately diagnose and repair OBDII code B0070 related to the Driver Seatbelt Pretensioner 'A' Deployment Control.