U0177 RAM Code - Lost Communication With Right 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 Right Side Impact Sensor 3, Right Side Impact Sensor 3 harness is open or shorted, Right 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
- U0177 RAM indicates Lost Communication With Right Side Satellite Acceleration Sensor 3.
- Common causes
- Common causes include Faulty Right Side Impact Sensor 3, Right Side Impact Sensor 3 harness is open or shorted, Right 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 U0177 RAM Description
What are the Possible Causes of the DTC U0177 RAM?
- Faulty Right Side Impact Sensor 3
- Right Side Impact Sensor 3 harness is open or shorted
- Right Side Impact Sensor 3 circuit poor electrical connection
- Faulty Occupant Restraint Controller (ORC)
How to Fix the DTC U0177 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 U0177 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.
Need more information about the U0177 RAM code?
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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 U0177 RAM Code
What does the OBDII code U0177 RAM mean?
The U0177 code indicates a loss of communication with the Right Side Satellite Acceleration Sensor 3, which is part of the vehicle's airbag or crash detection system.
What are the common symptoms of the U0177 RAM code?
Symptoms may include the airbag warning light being illuminated, loss of functionality in the airbag system, or no noticeable symptoms at all.
What causes the U0177 RAM code to appear?
The code can be triggered by a faulty Right Side Satellite Acceleration Sensor 3, damaged wiring or connectors, or a malfunctioning control module.
Can I drive my vehicle with the U0177 RAM code active?
While the vehicle may still be drivable, the airbag system may not function properly, posing a safety risk in the event of a collision.
How do I diagnose the U0177 RAM code?
Diagnosis involves checking the sensor, inspecting the wiring and connectors for damage, and testing the communication between the sensor and the control module.
What tools are needed to troubleshoot the U0177 RAM code?
You’ll need an OBDII scanner, a multimeter for checking electrical continuity, and potentially a wiring diagram specific to your vehicle.
How can I fix the U0177 RAM code?
Repairs may include replacing the faulty sensor, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the control module if necessary.
What is the cost to repair the U0177 RAM code?
Repair costs vary depending on the issue but can range from $50 for simple wiring fixes to $500 or more if the sensor or control module needs replacement.
Can a software issue trigger the U0177 RAM code?
Yes, outdated or corrupted software in the control module may cause communication issues with the sensor and trigger this code.
Will clearing the U0177 RAM code with a scanner fix the problem?
Clearing the code might temporarily turn off the warning light, but the underlying issue must be addressed to prevent the code from returning.
Discuss the causes and fixes for U0177 RAM OBDII Code
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