P0720 ISUZU – Transmission Countershaft Speed Sensor Fault

P0720 ISUZU Possible Symptoms

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

P0720 ISUZU Possible Causes

Faulty Speed Sensor,Speed Sensor harness is open or shorted,Speed Sensor circuit poor electrical connection

P0720 ISUZU 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.