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Home >> Toyota >> 2019 >> Sienna Limited, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Automatic Transaxle System [UA80E] - Diagnostic Codes (1 Of 3)) >> Automatic Transaxle System >> DTC P0500-31: Vehicle Speed Sensor "A" No Signal [08/2016 - 11/2017] >> Description

DTC P0500-31: Vehicle Speed Sensor "A" No Signal [08/2016 - 11/2017]: Description

WARNING: This page is about a different variant/trim than selected.

The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU. The skid control ECU converts these wheel speed signals into a pulse signal and outputs it to the ECM via the combination meter. The ECM determines the vehicle speed based on the frequency of this pulse signal.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P0500-31 Vehicle Speed Sensor "A" No Signal All conditions are met for 2 seconds or more (1 trip detection logic):
(a) Park/neutral position switch D input signal is ON.
(b) Any one condition is met.
  • Gear position is 1st:

    Transmission revolution sensor (NT) value is 1450 rpm or more.

  • Gear position is 2nd:

    Transmission revolution sensor (NT) value is 840 rpm or more.

  • Gear position is 3rd:

    Transmission revolution sensor (NT) value is 540 rpm or more.

  • Gear position is 4th:

    Transmission revolution sensor (NT) value is 400 rpm or more.

  • Gear position is 5th:

    Transmission revolution sensor (NT) value is 330 rpm or more.

  • Gear position is 6th, 7th or 8th:

    Transmission revolution sensor (NT) value is 300 rpm or more.


(c) The counter gear speed is 300 rpm or more.
(d) No vehicle speed is transmitted to the ECM.
  • Open or short in vehicle speed signal circuit
  • Combination meter system
  • ECM
Comes on DTC stored SAE Code:
P0500