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Home >> Toyota >> 2005 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System (W/O ETCS-I) - Diagnostics >> DTC 21, 23: Open Vehicle Speed Sensor Circuit/Abnormal >> Circuit Description
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Circuit Description

The vehicle speed sensor circuit is sent to cruise control ECU assy as a vehicle speed signal. For each rotation of the shaft, the vehicle speed sensor sends a signal through the combination meter assembly to the cruise control ECU assy (See the following chart). The cruise control ECU assy calculates the vehicle speed from this pulse frequency.

Fig 1: DTC - 21 Trouble Detection Chart
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