P1720 Infiniti Code - Vehicle Speed Meter Circuit Malfunction
Quick Answer
The P1720 Infiniti diagnostic trouble code indicates a malfunction in the vehicle speed meter circuit. Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors in the speed meter circuit, Malfunctioning instrument cluster. 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 Infiniti indicates Vehicle Speed Meter Circuit Malfunction.
- Common causes
- Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors in the speed meter circuit, Malfunctioning instrument cluster.
- 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.
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Code P1720 Infiniti Description
The P1720 Infiniti diagnostic trouble code indicates a malfunction in the vehicle speed meter circuit. The vehicle speed meter, also known as the speedometer, is responsible for displaying the vehicle's speed in real-time. When this circuit malfunctions, it can lead to inaccurate speed readings or a complete failure of the speedometer. This issue can have several implications for the vehicle's performance and safety.
Common Causes of P1720 Infiniti
- Faulty vehicle speed sensor
- Damaged wiring or connectors in the speed meter circuit
- Malfunctioning instrument cluster
- Electronic control module (ECM) issues
- Vehicle speedometer calibration error
Symptoms of P1720 Infiniti
- Inaccurate speed readings on the speedometer
- Speedometer needle jumping or fluctuating erratically
- ABS warning light illuminated on the dashboard
- Transmission shifting irregularly or harshly
- Check Engine Light (CEL) may be illuminated
How to Fix P1720 Infiniti
- Diagnose the issue by connecting a scan tool to retrieve the specific fault code and determine the exact cause of the malfunction.
- Inspect the vehicle speed sensor and wiring for any signs of damage or corrosion. Replace any faulty components as necessary.
- Test the instrument cluster to ensure it is functioning correctly. Repair or replace the cluster if needed.
- Clear the fault code from the vehicle's computer memory and test drive the vehicle to verify that the speedometer is functioning accurately.
- If the issue persists, consult a professional mechanic or dealership for further diagnostics and repairs.
Cost to Fix P1720 Infiniti
The repair costs for addressing a P1720 Infiniti code can vary depending on the specific cause of the issue and the labor rates in your area. On average, repairing a vehicle speed meter circuit malfunction could range from $150 to $500, including parts and labor. Keep in mind that additional diagnostic time may be required to pinpoint the exact cause of the problem, so it's advisable to consult with a qualified technician for an accurate estimate based on your vehicle's make and model. Labor rates at auto repair shops typically range from $80 to $150 per hour, but rates may vary based on location and shop type.
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