What Does the P0720 Nissan Code Mean?
The P0720 Nissan code is associated with the vehicle speed sensor, often referred to as the Revolution Sensor in most Nissan vehicles. This sensor is crucial for detecting the revolution of the idler gear parking pawl lock gear and emitting a pulse signal. For vehicles equipped with CVT, the vehicle speed sensor CVT (output speed sensor or secondary speed sensor) plays a similar role by detecting the revolution of the CVT output shaft and emitting a pulse signal. The Transmission Control Module (TCM) then converts these signals into the vehicle speed.
Possible Causes of the P0720 Nissan Code
The causes of the P0720 Nissan code include:
- Faulty Revolution Sensor
- Revolution Sensor harness open or shorted
- Poor electrical connection in the Revolution Sensor circuit
It is essential to note that these causes may not represent an exhaustive list, and there could be additional factors contributing to the issue.
Tech Notes for Code P0720 Nissan
On most Nissan vehicles, the vehicle speed sensor is referred to as the Revolution Sensor. To address the P0720 Nissan code, users are advised to check the ‘Possible Causes’ mentioned earlier and visually inspect the related wiring harness and connectors. It is crucial to look for damaged components and examine connector pins for signs of breakage, bending, pushing out, or corrosion.
How to Fix the DTC P0720 Nissan?
To resolve the DTC P0720 Nissan, follow these steps:
- Check the ‘Possible Causes’ listed above.
- Visually inspect the related wiring harness and connectors.
- Look for damaged components and examine connector pins for issues like breakage, bending, pushing out, or corrosion.
Cost to Diagnose the P0720 Nissan Code
The cost to diagnose the P0720 Nissan code is typically 1.0 hour of labor. Auto repair shops may charge varying rates depending on factors such as location, make and model of the vehicle, and engine type. Labor rates generally range between $75 and $150 per hour.
When is the P0720 Nissan Code Detected?
The diagnostic trouble code is triggered when the Transmission Control Module (TCM) does not receive the proper voltage signal from the sensor.
Possible Symptoms of Code P0720 Nissan
- Engine Light ON (or Service Engine Soon Warning Light)
- Speedometer showing improper readings
- Transmission issues
For Nissan Altima models from 2007 to 2012, the service manual outlines a specific diagnosis procedure for the P0720 vehicle speed sensor CVT (secondary speed sensor). The manual provides detailed steps to confirm the DTC, check the output speed sensor, examine power and sensor ground, and inspect various harnesses between the TCM, output speed sensor, and IPDM E/R. Users are guided through a systematic process to identify and address potential issues leading to the P0720 code.