U140C RAM Code - Implausible Right Rear Wheel Speed Signal Received
Quick Answer
The Diagnostic Trouble Code (DTC) sets when the Powertrain Control Module (PCM) detects an implausible Right Rear Wheel Speed signal over the Controller Area Network (CAN) bus from the Anti-Lock Brake (ABS) Module. Common causes include Faulty Right Rear Wheel Speed Sensor, Right Rear Wheel Speed Sensor harness is open or shorted, Right Rear Wheel Speed Sensor 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
- U140C RAM indicates Implausible Right Rear Wheel Speed Signal Received.
- Common causes
- Common causes include Faulty Right Rear Wheel Speed Sensor, Right Rear Wheel Speed Sensor harness is open or shorted, Right Rear Wheel Speed Sensor 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 U140C RAM Description
What are the Possible Causes of the DTC U140C RAM?
- Faulty Right Rear Wheel Speed Sensor
- Right Rear Wheel Speed Sensor harness is open or shorted
- Right Rear Wheel Speed Sensor circuit poor electrical connection
- Faulty Anti-Lock Brake System (ABS) Module
How to Fix the DTC U140C 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 U140C 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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Frequently Asked Questions about U140C RAM Code
1. What are the common symptoms of OBDII code U140C RAM?
- Common symptoms include ABS or traction control warning lights illuminated on the dashboard, erratic speedometer readings, and potential issues with the vehicle's stability control system.
2. What are the possible causes of the U140C RAM code?
- The code U140C RAM typically indicates an issue with the right rear wheel speed sensor, such as a faulty sensor, damaged wiring, or poor connections. It can also be triggered by problems with the ABS module or related components.
3. How can I diagnose the cause of the Implausible Right Rear Wheel Speed Signal Received code?
- To diagnose the U140C RAM code, you can use a diagnostic scan tool to read the fault codes and examine live data from the wheel speed sensors. Inspecting the wiring harness and connections for any visible damage is also recommended.
4. What repair steps can I take to address the U140C RAM code?
- Repair steps may include checking and repairing any damaged wiring or connections related to the right rear wheel speed sensor, replacing the sensor itself if faulty, or addressing any issues with the ABS module or related components.
5. Can driving with the U140C RAM code present cause further damage to my vehicle?
- Continuing to drive with the U140C RAM code present may lead to issues with the vehicle's stability control system and ABS functionality. It is recommended to address the problem promptly to ensure safe driving conditions.
6. Is it possible to reset the U140C RAM code without fixing the underlying issue?
- While clearing the code with a diagnostic scan tool may temporarily turn off the warning lights, the issue causing the U140C RAM code will likely persist. It is crucial to diagnose and repair the root cause of the problem.
7. How much does it typically cost to repair the U140C RAM code?
- The cost of repairing the U140C RAM code can vary depending on the specific cause of the issue. Costs may include labor charges for diagnosis and repair, as well as the price of any replacement parts needed, such as a wheel speed sensor.
8. Can I fix the U140C RAM code myself, or should I take my vehicle to a professional mechanic?
- While some DIY enthusiasts may be able to address the U140C RAM code themselves by checking and repairing wiring connections or replacing the wheel speed sensor, it is recommended to consult a professional mechanic for accurate diagnosis and repair.
9. Are there any preventative maintenance tips to avoid encountering the U140C RAM code in the future?
- Regularly inspecting and maintaining the wheel speed sensors, wiring harnesses, and ABS components can help prevent issues that may trigger the U140C RAM code. Keeping up with routine vehicle maintenance can also reduce the likelihood of encountering this problem.
10. Will the U140C RAM code prevent my vehicle from passing a state emissions inspection?
- The U140C RAM code is related to the ABS system and does not directly impact emissions. However, some inspection centers may flag it as a safety concern, so it is advisable to address the issue before undergoing an emissions inspection.
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