FREEZE FRAME DATA
Whenever an adaptive high beam system DTC is stored, the headlight ECU sub-assembly LH stores the current vehicle state as freeze frame data.
CHECK FREEZE FRAME DATA
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / AFS / Trouble Codes.
Select a DTC to display its freeze frame data.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| AHS Switch | Combination switch assembly (adaptive high beam switch) signal | ON or OFF | ON: Combination switch assembly (adaptive high beam switch) is operated OFF: Combination switch assembly (adaptive high beam switch) is not operated |
- |
| Traveling Direction | Traveling direction | Not Fwd or Fwd | Not Fwd: Shift lever in R or N Fwd: Shift lever not in R or N |
- |
| Headlight Low Beam State | Low beam headlight state | ON or OFF | ON: Low beam headlights on OFF: Low beam headlights off |
- |
| Headlight High Beam State | High beam headlight state | ON or OFF | ON: High beam headlights on OFF: High beam headlights off |
- |
| DRL State | Daytime running light state | ON or OFF | ON: Daytime running lights on OFF: Daytime running lights off |
The display is different depending on the destination. |
| Clearance Light State | Clearance light state | ON or OFF | ON: Clearance lights on OFF: Clearance lights off |
- |
| Right Cornering Light/Front Side Illuminate Light State | Cornering light RH state | ON or OFF | ON: Cornering light RH on OFF: Cornering light RH off |
- |
| Left Cornering Light/Front Side Illuminate Light State | Cornering light LH state | ON or OFF | ON: Cornering light LH on OFF: Cornering light LH off |
- |
| Daylight Operating State | Daytime running light state | ON or OFF | ON: Daytime running lights on OFF: Daytime running lights off |
The display is different depending on the destination. |
| Engine | Engine condition | Run or Stop | Run: Engine is running Stop: Engine is stopped |
- |
| Passing Light Switch | Dimmer switch high flash position (pass) signal | ON or OFF | ON: Dimmer switch in high flash position OFF: Dimmer switch not in high flash position |
- |
| AHS Operation Condition | Adaptive high beam system operation conditions | Failure or Approval | Failure: Adaptive high beam system operation conditions are not met Approval: Adaptive high beam system operation conditions are met |
- |
| Optical Axis Control State | Optical axis control state | ON or OFF | ON: Optical axis control (function to tilt up the headlights to illuminate farther distances when driving at high speeds) is being performed Optical axis control (function to tilt up the headlights to illuminate farther distances when driving at high speeds) is not being performed |
- |
| Steering Sens Signal | Steering sensor signal value | -384.0 deg to 382.5 deg | 0.0 deg | 0.0 deg is displayed when steering wheel is centered. |
| FR Wheel Speed | Front right wheel speed | 0.00 to 260.00 km/h (162.00 mph) | Condition can be displayed Vehicle stopped: 0 km/h (0 mph) |
- |
| FL Wheel Speed | Front left wheel speed | 0.00 to 260.00 km/h (162.00 mph) | Condition can be displayed Vehicle stopped: 0 km/h (0 mph) |
- |
| Vehicle Acceleration | Vehicle acceleration | -455.64 to 445.60 m/s2 |
Condition can be displayed Vehicle stopped: 0.0 m/s2 |
- |
| Leveling Motor Slave | Status of the headlight leveling motor slave | Normal or Abnormal | Normal: Headlight leveling motor is normal Abnormal: Headlight leveling motor is not normal |
If operation is abnormal, there may be a LIN communication error |
| Leveling Motor Over-Run | Status of the headlight leveling motor over-run | Normal or Abnormal | Normal: Headlight leveling motor is normal Abnormal: Headlight leveling motor is not normal |
If operation is abnormal, there may be a LIN communication error |
| AHS EDU Slave | Status of the light control LED ECU slave | Normal or Abnormal | Normal: Light control LED ECU is normal Abnormal: Light control LED ECU is not normal |
If operation is abnormal, there may be a LIN communication error |
| AHS EDU Over-Run | Status of the light control LED ECU over-run | Normal or Abnormal | Normal: Light control LED ECU is normal Abnormal: Light control LED ECU is not normal |
If operation is abnormal, there may be a LIN communication error |
| +B | Headlight ECU sub-assembly LH IG power supply voltage value | 0 to 19.75 V | 11 to 14 V | - |
| +B Voltage Value | Headlight ECU sub-assembly LH +B power supply voltage value | 0 to 19.75 V | 11 to 14 V | - |
| Number Of Trouble Codes | Number of stored DTCs when Freeze Frame Data stored | 0 to 255 | Number of stored DTCs displayed | - |
CLEAR FREEZE FRAME DATA
Note
Clearing the DTCs will also clear the freeze frame data.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Clear the DTCs and freeze frame data.