Lexus ES: Freeze Frame Data
FREEZE FRAME DATA
DESCRIPTION
(a) Whenever a front radar sensor system DTC is stored, the millimeter wave radar sensor assembly stores the current vehicle state as Freeze Frame Data.
CHECK FREEZE FRAME DATA
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Front Radar Sensor / Trouble Codes.
Body Electrical > Front Radar Sensor > Trouble Codes(e) According to the display on the Techstream, select a DTC with freeze frame data.
(f) Read the freeze frame data recorded when the DTC was stored.
Body Electrical > Front Radar Sensor| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Total Distance Traveled | - | - | - | Cannot be used |
| Total Distance Traveled - Unit | - | - | - | Cannot be used |
| Vehicle Setting Value Delta X | Sensor position | Min.: -1.28 m, Max.: 1.27 m | Actual sensor position displayed | - |
| Vehicle Setting Value Delta Z | Sensor position | Min.: 0 m, Max.: 655.35 m | Actual sensor position displayed | - |
| Vehicle Setting Value H | Sensor position | Min.: 0 m, Max.: 2.55 m | Actual sensor position displayed | - |
| Optical Axis Not Adjusted Status | Beam axis not adjusted status | Not Complete or Complete | Not Complete: Beam axis adjustment not completed Complete: Beam axis adjustment completed | - |
| Optical Axis Adjustment Angle (Horizontal) (Latest) | Latest beam axis adjustment angle value (horizontal) | Min.: -12.8 deg, Max.: 12.7 deg | Adjusted angle of beam axis alignment (Default value: 0.0 deg.) | - |
| Optical Axis Adjustment Angle (Vertical) (Latest) | Latest beam axis adjustment angle value (vertical) | Min.: -12.8 deg, Max.: 12.7 deg | Adjusted angle of beam axis alignment (Default value: 0.0 deg.) | - |
| Optical Axis Adjustment Angle (Horizontal) (2nd Latest) | 2nd latest beam axis adjustment angle value (horizontal) | Min.: -12.8 deg, Max.: 12.7 deg | Adjusted angle of beam axis alignment (Default value: 0.0 deg.) | - |
| Optical Axis Adjustment Angle (Vertical) (2nd Latest) | 2nd latest beam axis adjustment angle value (vertical) | Min.: -12.8 deg, Max.: 12.7 deg | Adjusted angle of beam axis alignment (Default value: 0.0 deg.) | - |
| Optical Axis Offset Angle (Horizontal) | Beam axis offset value (horizontal) | Min.: -12.8 deg, Max.: 12.7 deg | Beam axis offset value | - |
| Optical Axis Offset Angle (Vertical) | Beam axis offset value (vertical) | Min.: -12.8 deg, Max.: 12.7 deg | Beam axis offset value | - |
| Optical Axis Offset Angle (Horizontal) (with On-Line Calibration Angle) | Beam axis offset value (horizontal) (after completing calibration) | Min.: -12.8 deg, Max.: 12.7 deg | Beam axis offset value | - |
| Optical Axis Offset Angle (Vertical) (with On-Line Calibration Angle) | Beam axis offset value (vertical) (after completing calibration) | Min.: -12.8 deg, Max.: 12.7 deg | Beam axis offset value | - |
| Dirt Detection for Radar Cruise | Dirt detection status for radar cruise | OFF or ON | ON: Dirt detected OFF: Dirt not detected | - |
| Dirt Detection for PCS | Dirt detection status for PCS | OFF or ON | ON: Dirt detected OFF: Dirt not detected | - |
| Partially Dirt Detection | Partial dirt detection status | OFF or ON | ON: Dirt detected OFF: Dirt not detected | - |
| Data Flash Malfunction | Data flash malfunction status | OFF or ON | ON: Malfunction detected OFF: Normal | - |
| Power Supply Circuit Malfunction | Power supply circuit malfunction status | OFF or ON | ON: Malfunction detected OFF: Normal | - |
| Millimeter-wave Circuit Malfunction | Millimeter-wave radar sensor circuit malfunction status | OFF or ON | ON: Malfunction detected OFF: Normal | - |
| eDMA Transfer Completed Interrupt Malfunction | - | - | - | Cannot be used |
| Acceleration Sensor Malfunction | Acceleration sensor malfunction status | OFF or ON | ON: Malfunction detected OFF: Normal | - |
| IG Voltage Protection | IG voltage protection status | OFF or ON | ON: Malfunction detected OFF: Normal | - |
| Optical Axis Misalignment (Vertical - Acceleration Sensor Method) | Beam axis misalignment (vertical) result | OFF or ON | ON: Misalignment OFF: Normal | - |
| Optical Axis Misalignment (Horizontal) | Beam axis misalignment (horizontal) result | OFF or ON | ON: Misalignment OFF: Normal | - |
| Optical Axis Misalignment (Vertical - Acceleration Sensor Method and Recognition Method) | Beam axis misalignment (vertical) result | OFF or ON | ON: Misalignment OFF: Normal | - |
| Communication Error Between Front Radar Sensor and System Control ECU | Communication error status between front radar sensor and system control ECU | OFF or ON | ON: Malfunction OFF: Normal | - |
| Millimeter-wave Circuit Temperature Protection | Millimeter-wave circuit temperature protection status | OFF or ON | ON: Malfunction OFF: Normal | - |
| Destination Malfunction | Destination malfunction status | OFF or ON | ON: Malfunction OFF: Normal | - |
| IG Voltage | IG voltage value | Min.: 0 V, Max.: 25.5 V | 11.0 to 14.0 V: Power switch on (IG) | - |
| Front Radar Sensor Temperature | Temperature of area around millimeter wave radar sensor assembly | Min.: -32768 °C, Max.: 32767 °C | Actual temperature of area around millimeter wave radar sensor displayed | This value differs to the outside temperature. |
| Vehicle Speed | Vehicle speed | Min.: -30 km/h (-19 mph), Max.: 225.99 km/h (159 mph) | Almost same as actual vehicle speed | - |
| On-Line Calibration Angle (Horizontal) | Calibrated angle value (horizontal) | Min.: -12.8 deg, Max.: 12.7 deg | Learned value | - |
| On-Line Calibration Angle (Vertical) | Calibrated angle value (vertical) | Min.: -12.8 deg, Max.: 12.7 deg | Learned value | - |
READ NEXT:
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Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Front Radar Sensor System DTC No. Detection Item Link C1A1100 Front Radar Sensor Optical Axis Misalignment Malfunction C1A8C46 Main Microcomputer
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SEE MORE:
Parts Location
PARTS LOCATION ILLUSTRATION *1 CANISTER *2 FUEL PUMP (for Low Pressure Side) *3 MASS AIR FLOW METER SUB-ASSEMBLY *4 RADIATOR SHUTTER ASSEMBLY
RADIATOR SHUTTER SUB-ASSEMBLY
SWING GRILLE ACTUATOR ASSEMBLY
GRILLE SHUTTER ECU
*5 NO. 1 ENGINE ROOM RELAY BLOCK AND N
How To Proceed With Troubleshooting
HOW TO PROCEED WITH TROUBLESHOOTING
OPERATION FLOW
HINT:
Perform troubleshooting in accordance with the procedure below. The following
is an outline of basic troubleshooting procedure. Confirm the troubleshooting procedure
for the circuit you are working on before beginning troubleshooting.
