Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual: Freeze Frame Data

FREEZE FRAME DATA

FREEZE FRAME DATA

(a) When a DTC is stored, the 4WD ECU assembly stores the current vehicle state as Freeze Frame Data.

HINT:

  • When Freeze Frame Data is stored along with the DTC, the Freeze Frame Data is not updated until it is cleared.
  • "Number of IG ON" is not stored as Freeze Frame Data.

CHECK FREEZE FRAME DATA

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Chassis / Four Wheel Drive / Trouble Codes.

Chassis > Four Wheel Drive > Trouble Codes

(e) According to the display on the Techstream, select the DTCs with Freeze Frame Data.

Chassis > Four Wheel Drive

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Vehicle Speed

Maximum wheel speed sensor reading

Min.: 0 km/h (0 mph)

Max.: 326 km/h (202 mph)

Vehicle stopped: 0 km/h (0 mph)

No large fluctuations when driving at a constant speed.

Forward and Rearward G

Forward and rearward G

Min.: -25.10 m/s2

Max.: 24.90 m/s2

During acceleration/deceleration: Changes in accordance with acceleration

-

FR Wheel Speed

Front wheel speed sensor RH reading

Min.: 0 km/h (0 mph)

Max.: 326 km/h (202 mph)

Vehicle stopped: 0 km/h (0 mph)

No large fluctuations when driving at a constant speed.

FL Wheel Speed

Front wheel speed sensor LH reading

Min.: 0 km/h (0 mph)

Max.: 326 km/h (202 mph)

Vehicle stopped: 0 km/h (0 mph)

No large fluctuations when driving at a constant speed.

RR Wheel Speed

Rear wheel speed sensor RH reading

Min.: 0 km/h (0 mph)

Max.: 326 km/h (202 mph)

Vehicle stopped: 0 km/h (0 mph)

No large fluctuations when driving at a constant speed.

RL Wheel Speed

Rear wheel speed sensor LH reading

Min.: 0 km/h (0 mph)

Max.: 326 km/h (202 mph)

Vehicle stopped: 0 km/h (0 mph)

No large fluctuations when driving at a constant speed.

Accelerator Opening Angle %

Accelerator pedal depression amount

Min.: 0%

Max.: 127%

When the accelerator pedal is released: 0%

Changes in accordance with the operation of the accelerator pedal.

Real Engine Torque

Real engine torque

Min.: -1024 Nm

Max.: 1023 Nm

-

-

Steering Angle Sensor

Steering sensor

Min.: - 3276.8°

Max.: 3276.7°

Left turn: Increases

Right turn: Decreases

-

IG1 Voltage Value

IG1 voltage value

Min.: 0 V

Max.: 20 V

Engine switch on (IG): 11 to 14 V

-

Stop Light SW

Stop light switch

ON or OFF

ON: Brake pedal depressed

OFF: Brake pedal released

-

Parking Brake SW

Parking brake switch

ON or OFF

OFF: Parking brake released

ON: Parking brake applied

-

Number of IG ON

Number of operations of engine switch being turned on (IG) after storing Freeze Frame Data

0 to 31

-

-

Yaw Rate Sensor

Yaw rate value

Min.: -128°/s

Max.: 127°/s

Vehicle stopped: 0°/s

Turning right: -128 to 0°/s

Turning left: 0 to 127°/s

-

Lateral G

Lateral G

Min.: -25.10 m/s2

Max.: 24.90 m/s2

During turning: Changes in accordance with acceleration

-

CLEAR FREEZE FRAME DATA

NOTICE:

Clearing the DTCs will also clear the Freeze Frame Data.

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Clear the DTCs and Freeze Frame Data.

Click here

    Dtc Check / Clear
    DTC CHECK / CLEAR CHECK DTC (a) Check for DTCs. (1) Connect the Techstream to the DLC3. (2) Turn the engine switch on (IG). (3) Turn the Techstream on. (4) Read the DTCs following the prompts on the T ...

    Data List / Active Test
    DATA LIST / ACTIVE TEST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faul ...

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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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