P1721 2003 Infiniti G35 Code - Vehicle Speed Sensor MTR
Quick Answer
The vehicle speed sensor·MTR signal is transmitted from combination meter to Transmission Control Module (TCM) by CAN communication line. Common causes include Faulty Vehicle Speed Sensor, Vehicle Speed Sensor harness is open or shorted, Vehicle 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
- P1721 2003 Infiniti G35 indicates Vehicle Speed Sensor MTR.
- Common causes
- Common causes include Faulty Vehicle Speed Sensor, Vehicle Speed Sensor harness is open or shorted, Vehicle 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 P1721 2003 Infiniti G35 Description
What are the Possible Causes of the DTC P1721 2003 Infiniti G35?
- Faulty Vehicle Speed Sensor
- Vehicle Speed Sensor harness is open or shorted
- Vehicle Speed Sensor circuit poor electrical connection
- Transmission Control Module (TCM) communication
How to Fix the DTC P1721 2003 Infiniti G35?
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 P1721 2003 Infiniti G35 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 P1721 2003 Infiniti G35 Code
1. What are the common symptoms of OBDII code P1721 in a 2003 Infiniti G35?
- Common symptoms include erratic speedometer readings, harsh shifting, and the transmission going into limp mode.
2. What does the OBDII code P1721 for "Vehicle Speed Sensor MTR" indicate in a 2003 Infiniti G35?
- This code specifically points to an issue with the vehicle speed sensor motor circuit.
3. What are the possible causes of OBDII code P1721 in a 2003 Infiniti G35?
- Possible causes include a faulty vehicle speed sensor, damaged wiring or connectors, or a malfunctioning speed sensor motor circuit.
4. How can I diagnose the OBDII code P1721 in my 2003 Infiniti G35?
- A diagnostic scan tool can help identify the specific cause by reading the code and checking the vehicle speed sensor data.
5. Can I continue driving my 2003 Infiniti G35 with OBDII code P1721?
- It is not recommended to drive the vehicle with this code as it can lead to further transmission issues and potential safety hazards.
6. How can I repair OBDII code P1721 in my 2003 Infiniti G35?
- Repair involves inspecting and testing the vehicle speed sensor, checking the wiring harness, and replacing any faulty components as needed.
7. Is it possible to reset the OBDII code P1721 in a 2003 Infiniti G35 without making repairs?
- Resetting the code without addressing the underlying issue may temporarily clear the warning light, but the problem will likely reoccur.
8. Will the OBDII code P1721 cause any lasting damage to my 2003 Infiniti G35 if left unresolved?
- Ignoring this code can potentially lead to further damage to the transmission and other related components over time.
9. How much does it typically cost to repair OBDII code P1721 in a 2003 Infiniti G35?
- The cost can vary depending on the specific cause of the issue, but repairs may range from $100 to $300 or more, including parts and labor.
10. Can a DIY enthusiast fix OBDII code P1721 in a 2003 Infiniti G35, or is it best left to professionals?
- While some experienced DIYers may be able to tackle this repair, it is recommended to consult a professional mechanic for accurate diagnosis and proper resolution.
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