Engine Light ON (or Service Engine Soon Warning Light),Speedometer may not work properly,Transmission shifting problem
P0500 INFINITI Possible Causes
Faulty Vehicle Speed Sensor,Faulty Wheel Speed Sensor,Vehicle speed sensor harness or connectors is open or shorted,Vehicle speed sensor circuit poor electrical connection,Wheel speed sensor harness or connectors is open or shorted,Wheel speed sensor circuit poor electrical connection,Faulty Anti-lock Brake System (ABS) Control Unit,Faulty Engine Control Module (ECM)
P0500 INFINITI Description
The vehicle speed sensor outputs a 4 pulse signal for every revolution of the rotor shaft, which is rotated by the transmission output shaft via the driven gear. After this signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter, it is then transmitted to the Engine Control Module (ECM). The ECM determines the vehicle speed based on the frequency of these pulse signals. Most Infiniti Models 2006-2011: When the sensor rotor rotates, the magnetic field changes. It converts the magnetic field changes to current signals (rectangular wave) and transmits them to the Anti-lock Brake System (ABS) Actuator and Electric Unit (Control Unit). The vehicle speed signal is sent to the combination meter from the ABS Actuator and Electric Unit (Control Unit) by Controlled Area Network (CAN) communication line. The combination meter then sends a signal to the Engine Control Module (ECM) by CAN communication line. Most Infiniti Models 2012 + : The Engine Control Module (ECM) receives vehicle speed signals from two different paths via CAN communication line: One is from the Anti-lock Brake System (ABS) Actuator and Electric Unit (Control Unit) via the combination unit and the other is from Transmission Control Module (TCM).
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