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Home >> Toyota >> 2020 >> Prius XLE >> Repair and Diagnosis >> External Pages >> Different car >> Section 265 (Automatic Transmission [UA80E] - Diagnostic Codes (P0500-P0745)) >> Automatic Transaxle System >> DTC P0500-31: Vehicle Speed Sensor "A" No Signal [04/2018 -] >> Monitor Description

Monitor Description

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The ECM assumes that the vehicle is being driven when the transmission counter gear speed is 300 rpm or more. If there is no speed signal from the combination meter despite this condition being met, the ECM interprets this as a malfunction in the speed signal circuit, then illuminates the MIL and stores a DTC.

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