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DTC - Diagnostic Trouble Codes information

P0720

Powertrain Codes

P0720 - HYUNDAI - Output Speed Sensor Error

Symptoms

- Engine Light ON (or Service Engine Soon Warning Light) - Speedometer improper reading - Possible shifting problems

Possible Causes

- Speed sensor harness or connectors - Sensor circuit is open or shorted - Speed sensor

When Detected

Diagnostic trouble code is detected when Transmission Control Module (TCM) does not receive the proper voltage signal from the sensor.

Description

The speed sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. The pulse signal is sent to the Transmission Control Module (TCM) which converts it into vehicle speed.