B0078 GMC 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 GMC 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.
Code B0078 GMC Description
What are the Possible Causes of the DTC B0078 GMC?
- 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 GMC?
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 GMC 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.
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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.
Frequently Asked Questions about B0078 GMC Code
1. What are the common symptoms of OBDII code B0078 GMC (Right Front/Passenger Side Impact Sensor Performance)?
- Common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the airbag system's functionality.
2. What can cause the OBDII code B0078 GMC to trigger?
- The code B0078 GMC is typically triggered by a fault in the right front/passenger side impact sensor, such as wiring issues, sensor malfunctions, or physical damage.
3. How can I diagnose the cause of OBDII code B0078 GMC?
- Diagnosing the code involves checking the wiring harness and connections of the right front/passenger side impact sensor, inspecting the sensor for physical damage, and using a diagnostic scanner to read the error codes.
4. What are the repair options for OBDII code B0078 GMC?
- Repair options may include repairing or replacing damaged wiring, replacing the right front/passenger side impact sensor, or addressing any underlying issues that caused the code to trigger.
5. Can I drive my vehicle with OBDII code B0078 GMC active?
- It is not recommended to drive the vehicle with an active B0078 GMC code, as it indicates a potential issue with the airbag system, which could compromise safety in the event of a collision.
6. How much does it cost to repair OBDII code B0078 GMC?
- The cost of repairing OBDII code B0078 GMC can vary depending on the specific cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts needed.
7. Are there any safety concerns associated with OBDII code B0078 GMC?
- Yes, OBDII code B0078 GMC indicates a problem with the right front/passenger side impact sensor, which could affect the proper deployment of the airbag in the event of a collision, posing a safety risk.
8. Can I reset OBDII code B0078 GMC without fixing the underlying issue?
- While you can clear the code temporarily, it is important to address the underlying issue causing the B0078 GMC code to prevent safety risks and ensure the proper functioning of the airbag system.
9. Is OBDII code B0078 GMC a common issue in GMC vehicles?
- OBDII code B0078 GMC related to the right front/passenger side impact sensor performance is a relatively common issue in GMC vehicles equipped with airbag systems.
10. How often should I have the airbag system checked to prevent OBDII code B0078 GMC from occurring?
- It is recommended to have the airbag system inspected during routine maintenance checks or if you notice any signs of issues to help prevent OBDII code B0078 GMC from occurring.
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