FREEZE FRAME DATA
Whenever a DTC is detected, the headlight leveling ECU assembly stores the current vehicle (sensor) 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 / HL AutoLeveling
According to the display on the GTS, select the trouble code data display with freeze frame data.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Height Sens Pw Supply Val | Rear height control sensor power supply value | 0.00 to 5.00 V | 4.61 to 5.00 V | - |
| Rr Height Sens Signal Val | Rear height control sensor signal value | 0.00 to 5.00 V | 0.50 to 4.50 V | Value changes according to vehicle height. |
| +B Voltage Value | Headlight light control ECU power supply value | 0 to 19.75 V | 11 to 14 V | - |
| 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 Operating State | Daytime running light state | ON or OFF | ON: Daytime running light on OFF: Daytime running light off |
The display is different depending on the destination. |
| Daylight Operating State | Daytime running light state | ON or OFF | ON: Daytime running light on OFF: Daytime running light off |
The display is different depending on the destination. |
| Steering Sensor Signal | Steering angle sensor value | -384 to 382.5 deg | 0.0 deg | 0.0 deg is displayed when steering wheel is centered. |
| Front Right Wheel Speed Value | Front right wheel speed | 0.00 to 260.00 km/h (161.56 mph) | Condition can be displayed | - |
| Front Left Wheel Speed Value | Front left wheel speed | 0.00 to 260.00 km/h (151.56 mph) | Condition can be displayed | - |
| Vehicle Acceleration | Vehicle acceleration | -455.64 to 445.60 m/s2 |
Condition can be displayed | - |
| Clearance Light State | Clearance light state | ON or OFF | ON: Clearance light on OFF: Clearance light off |
- |
| Right Cornering Light State | Cornering light RH state | ON or OFF | ON: Cornering light RH on OFF: Cornering light RH off |
w/ Front Fog Light |
| Left Cornering Light State | Cornering light LH state | ON or OFF | ON: Cornering light LH on OFF: Cornering light LH off |
w/ Front Fog Light |
| Number Of Trouble Codes | Number of trouble codes | 0 to 255 | Condition can be 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.