P1720 2010 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 2010 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 2010 Nissan Altima Sedan Description
What are the Possible Causes of the DTC P1720 2010 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 2010 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 2010 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.
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Frequently Asked Questions about P1720 2010 Nissan Altima Sedan Code
1. What does OBDII code P1720 mean on a 2010 Nissan Altima Sedan?
P1720 indicates a Vehicle Speed Meter Circuit Malfunction, meaning the vehicle's speed sensor circuit may not be functioning properly.
2. What are the common symptoms of code P1720 in a 2010 Nissan Altima?
Symptoms may include erratic or non-functional speedometer readings, poor fuel efficiency, transmission shifting issues, or the Check Engine Light turning on.
3. What causes code P1720 in a Nissan Altima?
Common causes include a faulty vehicle speed sensor, damaged or corroded wiring, a malfunctioning instrument cluster, or issues within the transmission control module (TCM).
4. Can a faulty speed sensor trigger the P1720 code?
Yes, a faulty speed sensor is one of the primary causes of the P1720 code, as it disrupts the accurate reading of vehicle speed.
5. How do you diagnose code P1720 on a 2010 Nissan Altima?
Diagnosing involves using an OBDII scanner to confirm the code, inspecting the speed sensor and wiring for damage, and testing the sensor's output signal with a multimeter.
6. Can driving with a P1720 code damage the vehicle?
Driving with this code can cause transmission issues or erratic shifting, which may lead to further damage if not addressed promptly.
7. How do you fix code P1720 in a 2010 Nissan Altima?
Repairs may include replacing the speed sensor, repairing damaged wiring, cleaning corroded connectors, or reprogramming the TCM if necessary.
8. How much does it cost to repair code P1720 on a Nissan Altima?
Repair costs vary but typically range from $100 to $300, depending on whether the speed sensor, wiring, or other components need replacement.
9. Can a P1720 code cause transmission problems in a 2010 Nissan Altima?
Yes, since the transmission relies on accurate speed readings, a P1720 code can result in improper shifting or delays.
10. Is it safe to drive with a P1720 code on a 2010 Nissan Altima?
While the car may still be drivable, it’s not recommended to ignore the issue, as it can affect performance and lead to further mechanical problems.
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