AutoCodes – Pontiac – B0078 Pontiac

B0078 Pontiac Code - Right Front/Passenger Side Impact Sensor Performance

Quick Answer

The Inflatable Restraint Side Impact Sensor (SIS) utilizes a unidirectional 2-wire circuit. Common causes include Faulty Right Front/Passenger Side Impact Sensor (SIS), Right Front/Passenger Side Impact Sensor (SIS) harness is open or shorted, Right Front/Passenger Side Impact Sensor (SIS) 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: B0078 Pontiac indicates Right Front/Passenger Side Impact Sensor Performance.
Common causes: Common causes include Faulty Right Front/Passenger Side Impact Sensor (SIS), Right Front/Passenger Side Impact Sensor (SIS) harness is open or shorted, Right Front/Passenger Side Impact Sensor (SIS) 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 1,223

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
Cost to Diagnose
FAQs
Comments
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Code B0078 Pontiac Description

The Inflatable Restraint Side Impact Sensor (SIS) utilizes a unidirectional 2-wire circuit. The SIS modulates current on the interface to send ID, State of Health, and deployment commands to the Inflatable Restraint Sensing and Diagnostic Module (SDM). The SDM serves as a power source and a ground for the SIS. When the ignition is turned on and input power from the SDM is first detected, the SIS responds by performing internal diagnostics and sending an ID to the SDM. The SDM considers the ID to be valid if the response time is less than 5 seconds. The SIS continually communicates status messages to the SDM, which determines if a fault is present in the SIS circuit. When a fault is detected, the SDM resets the SIS twice by removing and reapplying power. If the fault is still present, the SDM will set a Diagnostic Trouble Code (DTC).

OBDII Code B0078 Pontiac - Right Front/Passenger Side Impact Sensor Performance - AutoCodes.com — B0078 Pontiac Code - Right Front/Passenger Side Impact Sensor Performance

What does this mean?

What are the Possible Causes of the DTC B0078 Pontiac?

Faulty Right Front/Passenger Side Impact Sensor (SIS)
Right Front/Passenger Side Impact Sensor (SIS) harness is open or shorted
Right Front/Passenger Side Impact Sensor (SIS) circuit poor electrical connection
Faulty Inflatable Restraint Sensing and Diagnostic Module (SDM)

How to Fix the DTC B0078 Pontiac?

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 B0078 Pontiac 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 B0078 Pontiac code?

Need more information on how to fix the B0078 Pontiac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0078 Pontiac 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 B0078 Pontiac Code

1. What are the common symptoms of OBDII code B0078 in a Pontiac related to the right front/passenger side impact sensor performance?

The common symptoms include the airbag warning light staying illuminated on the dashboard and potential non-deployment of the right front airbag during a collision.

2. What typically causes the OBDII code B0078 in a Pontiac?

This code is usually triggered by a malfunction in the right front/passenger side impact sensor, which could be due to sensor damage, a wiring issue, or a faulty connection.

3. How can I diagnose the issue causing the B0078 code in my Pontiac?

Diagnosing the issue involves inspecting the right front impact sensor and its wiring for any visible damage or loose connections. Using a diagnostic scanner to read the code and sensor data can also help pinpoint the problem.

4. Can I still drive my Pontiac with the B0078 code present?

It is not recommended to drive the vehicle with the B0078 code active, as it indicates a potential issue with the right front airbag system, which may affect its performance in the event of a collision.

5. What are the repair options for fixing the B0078 OBDII code in a Pontiac?

Repair options include replacing the right front/passenger side impact sensor, repairing any damaged wiring, and ensuring all connections are secure. It is advisable to consult a professional mechanic for proper diagnosis and repair.

6. Will resetting the OBDII code B0078 in my Pontiac make the issue go away?

Resetting the code may temporarily turn off the warning light, but it will not fix the underlying problem causing the B0078 code. Proper diagnosis and repair are necessary to address the issue effectively.

7. Are there any safety concerns associated with the B0078 OBDII code in a Pontiac?

Yes, there are safety concerns as the right front impact sensor plays a crucial role in deploying the airbag in a collision. Driving with the B0078 code unresolved may compromise the effectiveness of the airbag system.

8. How much does it typically cost to repair the B0078 code in a Pontiac?

The cost of repairing the B0078 code can vary depending on the extent of the damage, the need for parts replacement, and labor costs. It is advisable to get a quote from a trusted mechanic for an accurate estimate.

9. Can a DIY enthusiast fix the B0078 OBDII code issue in a Pontiac?

While some DIY enthusiasts may have the skills to diagnose and repair the B0078 code, it is recommended to seek professional assistance for issues related to airbag systems to ensure proper repair and safety compliance.

10. Will the B0078 OBDII code affect the overall performance of my Pontiac?

The B0078 code specifically relates to the right front/passenger side impact sensor performance, so it may not affect the overall performance of the vehicle but could impact the safety features related to the airbag system.