P1720 2009 Nissan Altima Sedan Code - Vehicle Speed Meter Circuit Malfunction
Quick Answer
The Engine Control Module (ECM) receives two vehicle speed sensor signals via the Control Area Network (CAN) communication line. Common causes include VDC/TCS/ABS to ECM circuit harness is open or shorted, TCM to ECM circuit harness is open or shorted, VDC/TCS/ABS to ECM circuit connectors. 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
- P1720 2009 Nissan Altima Sedan indicates Vehicle Speed Meter Circuit Malfunction.
- Common causes
- Common causes include VDC/TCS/ABS to ECM circuit harness is open or shorted, TCM to ECM circuit harness is open or shorted, VDC/TCS/ABS to ECM circuit connectors.
- 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 P1720 2009 Nissan Altima Sedan Description
What are the Possible Causes of the DTC P1720 2009 Nissan Altima Sedan?
- VDC/TCS/ABS to ECM circuit harness is open or shorted
- TCM to ECM circuit harness is open or shorted
- VDC/TCS/ABS to ECM circuit connectors
- TCM to ECM circuit connectors
- Faulty revolution sensor
How to Fix the DTC P1720 2009 Nissan Altima Sedan?
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 P1720 2009 Nissan Altima Sedan 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 P1720 2009 Nissan Altima Sedan code?
Need more information on how to fix the P1720 2009 Nissan Altima Sedan code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1720 2009 Nissan Altima Sedan code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1720 2009 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P1720 on a 2009 Nissan Altima Sedan?
Possible symptoms include erratic speedometer readings, inoperative speedometer, ABS warning light illuminated, and transmission shifting issues.
2. What does the OBDII code P1720 indicate for a 2009 Nissan Altima Sedan?
The code P1720 indicates a malfunction in the vehicle speed meter circuit, which is responsible for transmitting speed data to the vehicle's onboard computer.
3. What are some possible causes of the OBDII code P1720 on a 2009 Nissan Altima Sedan?
Common causes of the P1720 code include faulty vehicle speed sensor, damaged wiring or connectors in the speed sensor circuit, or a malfunctioning speedometer gauge.
4. How can I diagnose the OBDII code P1720 on my 2009 Nissan Altima Sedan?
Diagnosing the P1720 code involves checking the vehicle speed sensor for proper operation, inspecting the wiring and connectors for damage, and using a scan tool to read live data from the speed sensor.
5. Can I continue driving my 2009 Nissan Altima Sedan with the OBDII code P1720?
It is not recommended to drive the vehicle with the P1720 code present, as it can lead to inaccurate speedometer readings and potential transmission issues. It is best to address the problem promptly.
6. How can I repair the OBDII code P1720 on my 2009 Nissan Altima Sedan?
Repairing the P1720 code typically involves replacing a faulty vehicle speed sensor, repairing damaged wiring or connectors, or recalibrating the speedometer gauge as needed.
7. Will resetting the OBDII code P1720 on my 2009 Nissan Altima Sedan fix the issue?
Resetting the code may temporarily clear the warning light, but if the underlying issue causing the P1720 code is not addressed, the problem is likely to recur. Proper diagnosis and repair are recommended.
8. Can a DIY enthusiast fix the OBDII code P1720 on a 2009 Nissan Altima Sedan?
Depending on the cause of the P1720 code, some DIY enthusiasts may be able to tackle the repair themselves, especially if it involves replacing the vehicle speed sensor or repairing wiring. However, proper diagnosis is crucial.
9. How much does it cost to repair the OBDII code P1720 on a 2009 Nissan Altima Sedan?
The cost of repairing the P1720 code can vary depending on the cause of the issue, labor rates in your area, and whether you choose to do the repair yourself or take it to a professional mechanic. Estimates can range from $100 to $300 or more.
10. Is the OBDII code P1720 a common issue in 2009 Nissan Altima Sedans?
While the P1720 code may not be as common as some other OBDII codes, issues with the vehicle speed meter circuit can occur in 2009 Nissan Altima Sedans due to sensor failures, wiring problems, or other factors.
Discuss the causes and fixes for P1720 2009 Nissan Altima Sedan OBDII Code
Code P1720 2009 Nissan Altima Sedan comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
