Error Code P0723 is defined as Output Speed Sensor Intermittent. This is a generic trouble code, meaning it applies to all cars equipped with the OBD-II system, especially those made since 1996 up to present. This may include, but not limited to, cars from, Allison, Audi, BMW, Chevrolet, Dodge, Ford, GMC, Honda, Hyundai, Mercedes Benz, Ram, Volkswagen, etc. Specifications on the definition, troubleshooting, and repairs, of course, vary from one make and model, and powertrain configuration.
Error Code P0723 is associated with Transmission Output Speed Sensor. When the PCM (powertrain control module, also known as ECM or engine control module in other 2017 Maserati Quattroporte makes) determines a malfunction within the OSS (Output Speed Senor) circuit a wide variety of codes can be triggered, depending on the specific 2017 Maserati Quattroporte and specific automatic transmission.
The job of the Transmission Output Speed Sensor is to provide the PCM with the signal that tells the speed of the transmission output shaft rotation. The PCM uses these readings to control shift solenoids. The solenoids direct fluid between various hydraulic circuits and change the transmission gear ratio at the right time. Based on your 2017 Maserati Quattroporte and the transmission configuration, the Output Speed Sensor may also control the speedometer reading. Vehicles with automatic transmissions are controlled by bands and clutches that change gears by having fluid pressure in the right place at the right time. This process starts with the Transmission Output Speed Sensor.
Error Code P0723 is set by the PCM is not seeing a regular or consistent signal from the Output Speed Sensor.
Other OSS related error codes include
As with most codes, this code activates the Check Engine light. Other common symptoms include:
Multiple factors lead to this code, such as:
As with any malfunctions, it’s best to refer with the TSB (technical service bulletins) before starting your diagnosis for this error code. Make sure to check with your 2017 Maserati Quattroporte year, model, and transmission.
The first step is to check and make sure the fluid level and condition is correct; there should be no contamination. Also, make sure to check your 2017 Maserati Quattroporte ’s records and check the last time the filter and fluid were changed. A thorough visual inspection on the associated wiring is also needed; make sure to check for obvious defects, such as bare wires, burn spots, rubbed and scraped wires.
Make sure to check the connectors and connections for security, corrosion, and damaged pins. Also, check the connectors and wirings to the output speed sensor, transmission pump, transmission solenoids, and PCM. Depending on the configuration, the transmission linkage must be inspected for security and freedom of movement.
Advanced steps may vary depending on your 2017 Maserati Quattroporte , and require the right advanced equipment to perform correctly. This requires digital multimeter and specific technical references. Also, follow the proper troubleshooting guidelines and sequence for your 2017 Maserati Quattroporte . Voltage requirement may also vary based on the specific model of your 2017 Maserati Quattroporte and transmission configuration.
Always check for continuity; avoid shorting the circuit and make more damage by making sure the power is removed from the circuit. Unless specified in the technical data, normal readings for wirings and connections must be at 0 ohms of resistance. Resistance or no continuity means faulty wiring that is open or shorted and must be repaired or replaced.
Depending on the diagnosis, common repairs for this code include:
Not being able to know exactly how fast your 2017 Maserati Quattroporte is moving due to a defective speed sensor can be dangerous. It’s essential to have this problem addressed as soon as possible.
The most common misdiagnosis for this code is an internal transmission problem, engine misfire, and driveline problem. Also, some jump into blaming the fuel delivery system. In any case, these lead to unnecessary replacement of your 2017 Maserati Quattroporte speed sensor.