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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Automatic Transaxle System - Diagnostic Codes (1 Of 3)) >> Automatic Transaxle System >> DTC P0500-31: Vehicle Speed Sensor "A" No Signal [10/2022 - ] >> Typical Enabling Conditions

Typical Enabling Conditions

WARNING: This page is about a different car, the 2025 Lexus RX 350, 2024 Lexus RX 350, and 2023 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
The monitor will run whenever the following DTCs are not stored None
Battery voltage 8 V or more
Ignition switch ON
Starter OFF
Intermediate shaft speed sensor revolution 300 rpm or more
Engine Running
Shift change is completed before starting next shift change operation -
D position switch ON
Pressure control solenoid circuit fail (P08C1, P08C2, P0962, P0963, P0966, P0967, P0970, P0971, P2720, P2721, P2814, P2815, P281D, P281E)
(Pending + MIL)
Not detected
Torque Converter Clutch Pressure Control Solenoid circuit fail (P2763, P2764)
(Pending + MIL)
Not detected
Torque Converter Clutch Solenoid circuit fail (P2769, P2770)
(Pending + MIL)
Not detected
Lost Communication with ECM/PCM (U0100)
(Pending + MIL)
Not detected

One of the following conditions is met: Condition (A), (B), (C), (D), (E), (F), (G) or (H) 

  1. CONDITION (A)

    ECM selected gear 1st
    Turbine speed sensor revolution 1450 rpm or more
    CONDITION (B)

    ECM selected gear 2nd
    Turbine speed sensor revolution 840 rpm or more
    CONDITION (C)

    ECM selected gear 3rd
    Turbine speed sensor revolution 540 rpm or more
    CONDITION (D)

    ECM selected gear 4th
    Turbine speed sensor revolution 400 rpm or more
    CONDITION (E)

    ECM selected gear 5th
    Turbine speed sensor revolution 330 rpm or more
    CONDITION (F)

    ECM selected gear 6th
    Turbine speed sensor revolution 300 rpm or more
    CONDITION (G)

    ECM selected gear 7th
    Turbine speed sensor revolution 300 rpm or more
    CONDITION (H)

    ECM selected gear 8th
    Turbine speed sensor revolution 300 rpm or more

Either of the following conditions is met: Condition (I) or (J) 

  1. CONDITION (I)

    ECT 20°C (68°F) or more
    ECT sensor circuit fail (P0117, P0118)
    (Pending + MIL)
    Not detected
    Either of the following conditions (1) or (2) is met 2 sec. or more
    (1) R range position switch ON
    (2) D range position switch ON
    CONDITION (J)

    Either of the following conditions is met (1) or (2)
    (1) ECT Less than 20°C (68°F)
    (2) ECT sensor circuit fail (P0117, P0118)
    (Pending + MIL)
    Detected
    Either of the following conditions (1) or (2) is met 30 sec. or more
    (1) R range position switch ON
    (2) D range position switch ON