Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Freeze Frame Data

FREEZE FRAME DATA

DESCRIPTION

The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was moving or stationary, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

HINT:

  • If it is impossible to replicate the problem even though a DTC is detected, confirm the freeze frame data.
  • Freeze frame data is available in long and short forms.

PENDING FREEZE FRAME DATA

HINT:

Pending freeze frame data is stored when a 2 trip DTC is first detected during the first trip.

(a) Connect the Techstream to the DLC3.

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

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Trouble Codes.

(e) Select a DTC in order to display its pending freeze frame data.

Powertrain > Engine > Trouble Codes

HINT:

  • Pending freeze frame data is cleared when any of the following occurs.
    • Using the Techstream, the DTCs cleared.
    • The cable is disconnected from the negative (-) battery terminal.
    • 40 trips with the engine fully warmed up have been performed after returning to normal. (Pending freeze frame data will not be cleared by only returning the system to normal.)
  • With previous pending freeze frame data stored, if pending freeze frame data is newly stored when a 2 trip DTC is detected in the first trip, the old freeze frame data will be replaced with the new data of the newly detected DTC in the next trip.

LIST OF FREEZE FRAME DATA

Powertrain > Engine

Tester Display

Total Distance Traveled

Total Distance Traveled - Unit

Vehicle Speed

Engine Speed

Calculate Load

Vehicle Load

Mass Air Flow Sensor

Atmospheric Pressure

Coolant Temperature

Intake Air Temperature

Ambient Temperature

Engine Run Time

IG-ON Coolant Temperature

Initial Engine Coolant Temperature

IG-ON Intake Air Temperature

Initial Engine Intake Air Temperature

Battery Voltage

BATT Voltage

Glow Indicator Supported

Accelerator Position

Accelerator Position Sensor No.1 Voltage %

Accelerator Position Sensor No.2 Voltage %

Accelerator Position Sensor No.1 Voltage

Accelerator Position Sensor No.2 Voltage

Accelerator Idle Position

Accelerator Position Sensor No.1 Fully Closed Learn Value

Accelerator Position Sensor No.2 Fully Closed Learn Value

Engine Starting Torque Control Count

Throttle Position Sensor No.1 Voltage %

Throttle Position Sensor No.2 Voltage %

System Guard

Open Side Malfunction

Throttle Request Position

Throttle Sensor Position

Throttle Position Sensor No.1 Voltage

Throttle Position Sensor No.2 Voltage

Throttle Position Command

Throttle Position Sensor Open Position No.1

Throttle Position Sensor Open Position No.2

Throttle Motor Current

Throttle Motor Duty Ratio

Throttle Motor Duty Ratio (Open)

Throttle Motor Duty Ratio (Close)

Throttle Position Sensor Fully Closed Learn Value

+BM Voltage

Actuator Power Supply

Throttle Air Flow Learn Value (Area 1)

Throttle Air Flow Learn Value (Area 2)

Throttle Air Flow Learn Value (Area 3)

Throttle Air Flow Learn Value (Calculated Value)

Throttle Air Flow Learn Value (Atmosphere Pressure Offset Value)

Low Revolution Control

N Range Status

Engine Stall Control F/B Flow

ISC F/B Learn Torque

ISC Total AUXS Torque

ISC F/B Torque

Sum of ISC F/B Torque (Recent)

ISC AUXS Torque (Alternator)

ISC AUXS Torque (Air Conditioner)

Throttle Air Flow F/B Value

Throttle Position

Target Fuel Pressure (High)

Target Fuel Pressure (High) Supported

Target Fuel Pressure (Low) / Target Fuel Pressure 2

Target Fuel Pressure (Low) / Target Fuel Pressure 2 Supported

Fuel Pressure (High)

Fuel Pressure (High) Supported

Fuel Pressure (Low) / Fuel Pressure 2

Fuel Pressure (Low) / Fuel Pressure 2 Supported

VSV for Vent Valve

Vacuum Pump

Fuel Pump Target Speed

Fuel Pump F/B Offset

Fuel Pump Control Duty Ratio

Injector Cylinder #1 (Port)

Injection Volume Cylinder #1

Target Fuel Pressure Offset

Injection Volume

Low Fuel Pressure Sensor

High Fuel Pressure Sensor

High Pressure Fuel Pump Duty Ratio (D4)

High Pressure Fuel Pump Discharge Rate

Injection Mode

Injection Switching Status

Injection Timing Cylinder #1 (D4)

Injection Time Cylinder #1 (D4)

Current Fuel Type

EVAP (Purge) VSV

Target Air-Fuel Ratio

A/F (O2) Lambda Sensor B1S1

A/F (O2) Lambda Sensor B2S1

A/F (O2) Sensor Voltage B1S1

A/F (O2) Sensor Voltage B2S1

A/F (O2) Sensor Current B1S1

A/F (O2) Sensor Current B2S1

A/F (O2) Sensor Heater Duty Ratio B1S1

A/F (O2) Sensor Heater Duty Ratio B2S1

O2 Sensor Voltage B1S2

O2 Sensor Voltage B2S2

O2 Sensor Impedance B1S2

O2 Sensor Impedance B2S2

O2 Sensor Heater B1S2

O2 Sensor Heater B2S2

O2 Sensor Heater Current Value B1S2

O2 Sensor Heater Current Value B2S2

Short FT B1S1

Short FT B2S1

Short FT B1S2

Short FT B2S2

Long FT B1S1

Long FT B2S1

Long FT B1S2

Long FT B2S2

Total FT Bank 1

Total FT Bank 2

Fuel System Status Bank 1

Fuel System Status Bank 2

Ignition Timing Cylinder #1

Knock F/B Value

Knock Correct Learn Value

Idle Spark Advance Control Cylinder #1

Idle Spark Advance Control Cylinder #2

Idle Spark Advance Control Cylinder #3

Idle Spark Advance Control Cylinder #4

Idle Spark Advance Control Cylinder #5

Idle Spark Advance Control Cylinder #6

Mass Air Flow Circuit

ACIS VSV

VVT Advance Fail

Intake VVT Hold Correct Learn Value Bank 1 (Area 1)

Intake VVT Hold Correct Learn Value Bank 1 (Area 2)

Intake VVT Hold Correct Learn Value Bank 2 (Area 1)

Intake VVT Hold Correct Learn Value Bank 2 (Area 2)

Intake VVT Change Angle Bank 1

Intake VVT Change Angle Bank 2

Intake VVT OCV Control Duty Ratio Bank 1

Intake VVT OCV Control Duty Ratio Bank 2

Exhaust VVT Hold Learn Value Bank 1

Exhaust VVT Hold Learn Value Bank 2

Exhaust VVT Change Angle Bank 1

Exhaust VVT Change Angle Bank 2

Exhaust VVT OCV Control Duty Ratio Bank 1

Exhaust VVT OCV Control Duty Ratio Bank 2

Intake VVT Target Angle Bank 1

Intake VVT Target Angle Bank 2

Exhaust VVT Target Angle Bank 1

Exhaust VVT Target Angle Bank 2

Catalyst Temperature B1S1

Catalyst Temperature B2S1

Catalyst Temperature B1S2

Catalyst Temperature B2S2

Starter SW

Neutral Position SW

Shift SW Status (Neutral) Supported

Stop Light SW

Immobiliser Communication

Cruise Main SW

Closed Throttle Position SW

TC Terminal

MIL ON Run Distance

Running Time from MIL ON

Time after DTC Cleared

Distance from DTC Cleared

Warmup Cycle Cleared DTC

Distance Traveled from Last Battery Cable Disconnect

IG OFF Elapsed Time

Soak IC Current Timer Value

Soak IC First Start Time

Soak Timer Start History

Ignition Trigger Count

Misfire Count Cylinder #1

Misfire Count Cylinder #2

Misfire Count Cylinder #3

Misfire Count Cylinder #4

Misfire Count Cylinder #5

Misfire Count Cylinder #6

All Cylinders Misfire Count

Misfire RPM

Misfire Load

Misfire Margin

Catalyst OT Misfire Fuel Cut

Catalyst OT Misfire Fuel Cut History

Catalyst OT Misfire Fuel Cut Cylinder #1

Catalyst OT Misfire Fuel Cut Cylinder #2

Catalyst OT Misfire Fuel Cut Cylinder #3

Catalyst OT Misfire Fuel Cut Cylinder #4

Catalyst OT Misfire Fuel Cut Cylinder #5

Catalyst OT Misfire Fuel Cut Cylinder #6

A/F Learn Value Idle (Port) Bank 1

A/F Learn Value Idle (Port) Bank 2

A/F Learn Value Low (Port) Bank 1

A/F Learn Value Low (Port) Bank 2

A/F Learn Value Mid No.1 (Port) Bank 1

A/F Learn Value Mid No.1 (Port) Bank 2

A/F Learn Value Mid No.2 (Port) Bank 1

A/F Learn Value Mid No.2 (Port) Bank 2

A/F Learn Value High (Port) Bank 1

A/F Learn Value High (Port) Bank 2

Engine Speed (Starter Off)

Starter Count

Run Distance of Previous Trip

Engine Starting Time

Engine Start Hesitation

Low Revolution for Engine Start

Fuel Cut Elapsed Time

Previous Trip Coolant Temp

Previous Trip Intake Temp

Engine Oil Temperature

Previous Trip Eng Oil Temp

Ambient Temp for A/C

Previous Trip Ambient Temp

A/F Learn Value Idle Bank 1

A/F Learn Value Idle Bank 2

A/F Learn Value Low Bank 1

A/F Learn Value Low Bank 2

A/F Learn Value Mid No.1 Bank 1

A/F Learn Value Mid No.1 Bank 2

A/F Learn Value Mid No.2 Bank 1

A/F Learn Value Mid No.2 Bank 2

A/F Learn Value High Bank 1

A/F Learn Value High Bank 2

A/F Learn Value Low (Dual/Port) Bank 1

A/F Learn Value Low (Dual) Bank 2

A/F Learn Value Mid (Dual/Port) No.1 Bank 1

A/F Learn Value Mid (Dual) No.1 Bank 2

A/F Learn Value Mid (Dual/Port) No.2 Bank 1

A/F Learn Value Mid (Dual) No.2 Bank 2

A/F Learn Value High (Dual/Port) Bank 1

A/F Learn Value High (Dual) Bank 2

Compression Leakage Count

Rough Idle Status

Plural Cylinders Rough Idle

Rough Idle Cylinder #1

Rough Idle Cylinder #2

Rough Idle Cylinder #3

Rough Idle Cylinder #4

Rough Idle Cylinder #5

Rough Idle Cylinder #6

Alternator Output Duty Ratio

Alternator Voltage - Non Active Test

Voltage of Alternator

ACM Inhibit

Cooling Fan Duty Ratio

Brake Override System

Immobiliser Fuel Cut Status

Immobiliser Fuel Cut History

Fuel Cut Condition

Idle Fuel Cut

TAU Fuel Cut

Key Unlock Signal

Engine Speed Cylinder #1

Engine Speed Cylinder #2

Engine Speed Cylinder #3

Engine Speed Cylinder #4

Engine Speed Cylinder #5

Engine Speed Cylinder #6

Average Engine Speed of All Cylinder

A/F Sensor Determination (Worst Value) Bank 1

A/F Sensor Determination (Worst Value) Bank 2

Engine Speed Fluctuation Average (Worst Value) Cylinder #1

Engine Speed Fluctuation Average (Worst Value) Cylinder #2

Engine Speed Fluctuation Average (Worst Value) Cylinder #3

Engine Speed Fluctuation Average (Worst Value) Cylinder #4

Engine Speed Fluctuation Average (Worst Value) Cylinder #5

Engine Speed Fluctuation Average (Worst Value) Cylinder #6

A/F Sensor Determination (Worst Value) (Port) Bank 1

A/F Sensor Determination (Worst Value) (Port) Bank 2

Engine Speed Fluctuation Average (Worst Value) (Port) Cylinder #1

Engine Speed Fluctuation Average (Worst Value) (Port) Cylinder #2

Engine Speed Fluctuation Average (Worst Value) (Port) Cylinder #3

Engine Speed Fluctuation Average (Worst Value) (Port) Cylinder #4

Engine Speed Fluctuation Average (Worst Value) (Port) Cylinder #5

Engine Speed Fluctuation Average (Worst Value) (Port) Cylinder #6

Received MIL from ECT

Output Axis Speed

NT Sensor Speed

Shift SW Status (P Range)

Shift SW Status (R Range)

Shift SW Status (N Range)

Shift SW Status (N,P Range)

Shift SW Status (N,P Range) Supported

Sport Shift Up SW

Sport Shift Down SW

Shift SW Status (S Range)

Shift SW Status (D Range)

A/T Oil Temperature No.1

Drive Mode Status

Mode Cancel SW

Power Mode SW

Lock Up Status

Shift Status

Fuel Remaining Volume

    Dtc Check / Clear
    DTC CHECK / CLEAR NOTICE: When the diagnosis system is changed from normal mode to check mode or vice versa, all DTCs and freeze frame data recorded in normal mode are cleared. Before changing modes, ...

    Terminals Of Ecm
    TERMINALS OF ECM HINT: The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the termi ...

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