Lexus ES: 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:
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If it is impossible to reproduce the symptoms even though a DTC is stored, confirm the freeze frame data.
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Freeze frame data is available in long and short forms.
LIST OF FREEZE FRAME DATA
Powertrain > Engine
| Tester Display |
| Battery Voltage |
| Alternator Output Duty Ratio |
| Alternator Voltage - Non Active Test |
| Voltage of Alternator |
READ NEXT:
DTC CHECK / CLEAR CHECK DTC (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.
TERMINALS OF ECM HINT: The standard normal voltage and resistance between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are al
PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of
SEE MORE:
DESCRIPTION The multi-display assembly and radio receiver assembly are connected by AVC-LAN communication lines. This DTC is stored when an AVC-LAN communication error occurs between the multi-display assembly and radio receiver assembly. DTC No. Detection Item DTC Detection Condition Troub
DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU monitors the high-voltage wiring between the HV battery and inverter with converter assembly and detects an open circuit malfunction. HINT:
This DTC is differentiated from P300449 based on detection timing (after power switch is t
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