U0170 Buick Code - Lost Communication With Passenger Presence Detection Sensor Module
Quick Answer
Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Passenger Presence Detection Sensor Module, Passenger Presence Detection Sensor Module harness is open or shorted, Passenger Presence Detection Sensor Module 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
- U0170 Buick indicates Lost Communication With Passenger Presence Detection Sensor Module.
- Common causes
- Common causes include Faulty Passenger Presence Detection Sensor Module, Passenger Presence Detection Sensor Module harness is open or shorted, Passenger Presence Detection Sensor Module 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 U0170 Buick Description
What are the Possible Causes of the DTC U0170 Buick?
- Faulty Passenger Presence Detection Sensor Module
- Passenger Presence Detection Sensor Module harness is open or shorted
- Passenger Presence Detection Sensor Module circuit poor electrical connection
How to Fix the DTC U0170 Buick?
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 U0170 Buick 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 U0170 Buick Code
1. What are the common symptoms of OBDII code U0170 in a Buick related to the Passenger Presence Detection Sensor Module?
- Common symptoms include the airbag warning light illuminating on the dashboard, malfunctioning airbag system, and potential loss of communication with the passenger presence detection sensor module.
2. What are the possible causes of OBDII code U0170 indicating a lost communication with the Passenger Presence Detection Sensor Module in a Buick?
- The possible causes may include a faulty passenger presence detection sensor module, damaged wiring or connectors, software issues, or a communication network problem within the vehicle.
3. How can I diagnose the root cause of OBDII code U0170 in my Buick related to the Passenger Presence Detection Sensor Module?
- Diagnosing the issue involves using a diagnostic scan tool to retrieve the specific trouble codes, checking the wiring and connectors for any visible damage, testing the sensor module itself, and ensuring proper communication on the vehicle's network.
4. Is it safe to drive my Buick with the U0170 OBDII code indicating a lost communication with the Passenger Presence Detection Sensor Module?
- It is not recommended to drive the vehicle with this code present, as it may affect the proper functioning of the airbag system, potentially compromising passenger safety in the event of a collision.
5. Can I reset the OBDII code U0170 in my Buick without addressing the underlying issue with the Passenger Presence Detection Sensor Module?
- While you can clear the code temporarily, it is crucial to address the root cause to prevent the issue from reoccurring and ensure the proper operation of the airbag system.
6. What are some repair tips for resolving the U0170 code related to the Passenger Presence Detection Sensor Module in a Buick?
- Repair tips may include checking and repairing damaged wiring, replacing the faulty sensor module if necessary, updating software as per manufacturer recommendations, and ensuring all connections are secure.
7. How much does it typically cost to repair the U0170 code involving the Passenger Presence Detection Sensor Module in a Buick?
- The repair costs can vary depending on the specific issue, but it may involve expenses for parts replacement, labor charges, diagnostic fees, and any necessary software updates. Consulting a professional mechanic for a detailed estimate is recommended.
8. Can I fix the U0170 code related to the Passenger Presence Detection Sensor Module in my Buick myself, or do I need to take it to a professional mechanic?
- While some DIY enthusiasts may be able to address simpler issues like checking connections or replacing components, complex diagnosis and repair tasks involving the airbag system are best left to experienced professionals for safety and accuracy.
9. Are there any recalls or technical service bulletins related to the U0170 code in Buick vehicles with issues concerning the Passenger Presence Detection Sensor Module?
- It is advisable to check with the manufacturer or authorized dealerships for any recalls or technical service bulletins related to this specific OBDII code in Buick vehicles to ensure compliance with safety standards and potential cost coverage for repairs.
10. How can I prevent the U0170 OBDII code from reoccurring after resolving the issue with the Passenger Presence Detection Sensor Module in my Buick?
- To prevent the code from reoccurring, it is essential to perform regular maintenance checks, address any related issues promptly, follow manufacturer recommendations for software updates, and ensure proper installation of components during repairs.
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