U0174 RAM Code - Lost Communication With Left Side Satellite Acceleration Sensor 3
Quick Answer
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. Common causes include Faulty Left Side Impact Sensor 3, Left Side Impact Sensor 3 harness is open or shorted, Left Side Impact Sensor 3 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
- U0174 RAM indicates Lost Communication With Left Side Satellite Acceleration Sensor 3.
- Common causes
- Common causes include Faulty Left Side Impact Sensor 3, Left Side Impact Sensor 3 harness is open or shorted, Left Side Impact Sensor 3 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 U0174 RAM Description
What are the Possible Causes of the DTC U0174 RAM?
- Faulty Left Side Impact Sensor 3
- Left Side Impact Sensor 3 harness is open or shorted
- Left Side Impact Sensor 3 circuit poor electrical connection
- Faulty Occupant Restraint Controller (ORC)
How to Fix the DTC U0174 RAM?
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 U0174 RAM 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 U0174 RAM Code
1. What are the common symptoms of OBDII code U0174 RAM?
- Common symptoms include the check engine light coming on, dashboard warning messages related to communication issues, and potential drivability issues like rough idling or poor acceleration.
2. What does the OBDII code U0174 RAM indicate?
- This code indicates a communication problem with the Left Side Satellite Acceleration Sensor 3 in the vehicle's system.
3. What are some possible causes of OBDII code U0174 RAM?
- Possible causes include wiring issues, a faulty sensor, a loose connection, a damaged sensor, or a problem with the vehicle's electronic control module.
4. How can I diagnose the cause of OBDII code U0174 RAM?
- Diagnosing this code may involve checking the wiring connections, inspecting the sensor for damage, using a diagnostic scanner to read live data, and performing a thorough visual inspection.
5. Can I still drive my vehicle with OBDII code U0174 RAM?
- It is not recommended to drive the vehicle with this code present, as it can affect the vehicle's performance and safety systems.
6. How can I repair OBDII code U0174 RAM?
- Repair options may include repairing or replacing damaged wiring, replacing the Left Side Satellite Acceleration Sensor 3, ensuring proper connections, or resetting the fault code after fixing the issue.
7. Is it necessary to reset the fault code after repairing OBDII code U0174 RAM?
- Yes, it is important to reset the fault code using a diagnostic scanner after repairing the issue to clear the code and see if the problem has been resolved.
8. Can a DIY enthusiast fix OBDII code U0174 RAM?
- Depending on the underlying cause, a DIY enthusiast with the necessary tools and knowledge of automotive electrical systems may be able to fix this code. However, professional assistance is recommended for complex issues.
9. How do I prevent OBDII code U0174 RAM from occurring again?
- Regular maintenance checks, ensuring proper wiring connections, and addressing any sensor issues promptly can help prevent this code from recurring in the future.
10. Is OBDII code U0174 RAM a common issue in certain vehicle makes or models?
- This code may occur in various vehicle makes and models, particularly those equipped with the Left Side Satellite Acceleration Sensor 3 and related communication systems.
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