Lexus IS250 IS220d GSE20 ALE20 - LIGHTING
LIGHTING SYSTEM - DATA LIST / ACTIVE TEST
| READ DATA LIST |
- HINT:
- Using the intelligent tester DATA LIST allows switch, actuator and other item values to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to save time.
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Read the DATA LIST according to the display on the tester.
| Item | Measurement Item / Display (Range) | Normal Condition | Diagnostic Note |
| Rear Fog Light Switch | Rear fog light switch signal / ON or OFF | ON: Rear fog light switch is in ON position OFF: Rear fog light switch is not in ON position | - |
| Front Fog Light Switch | Front fog light switch signal / ON or OFF | ON: Front fog light switch is in ON position OFF: Front fog light switch is not in ON position | - |
| Passing Light Switch | Passing light switch signal / ON or OFF | ON: Headlight dimmer switch is in FLASH position OFF: Headlight dimmer switch is not in FLASH position | - |
| Dimmer Hi Switch | High beam switch signal / ON or OFF | ON: Headlight dimmer switch is in HI position OFF: Headlight dimmer switch is not in HI position | - |
| Light Auto Switch | Auto light switch signal / ON or OFF | ON: Light control switch is in AUTO position OFF: Light control switch is not in AUTO position | - |
| Head Light Switch | Headlight control switch signal / ON or OFF | ON: Light control switch is in HEAD position OFF: Light control switch is not in HEAD position | - |
| Tail Light Switch | Taillight switch signal / ON or OFF | ON: Light control switch is in TAIL or HEAD position OFF: Light control switch is off | - |
| Turn Left Switch | Turn signal switch LH signal / ON or OFF | ON: Light control switch is in LH position OFF: Light control switch is not in LH position | - |
| Turn Right Switch | Turn signal switch RH signal / ON or OFF | ON: Light control switch is in RH position OFF: Light control switch is not in RH position | - |
| Ignition Switch Signal | Engine switch signal / ON or OFF | ON: Engine switch on (IG) OFF: Engine switch off | - |
| Item | Measurement Item / Display (Range) | Normal Condition | Diagnostic Note |
| ACC SW | Engine switch / ON (ACC) or OFF | ON: Engine switch on (ACC or IG) OFF: Engine switch off | - |
| IG SW | Engine switch / ON (IG) or OFF | ON: Engine switch on (IG) OFF: Engine switch off | - |
| Luggage Courtesy SW | Luggage door courtesy SW / ON or OFF | ON: Luggage door is open OFF: Luggage door is closed | |
| D Door Courtesy SW | Driver side courtesy SW / ON or OFF | ON: Driver side door is open OFF: Driver side door is closed | - |
| P Door Courtesy SW | Passenger side courtesy SW / ON or OFF | ON: Passenger side door is open OFF: Passenger side door is closed | - |
| Rear Door Courtesy SW | Rear (LH or RH) courtesy SW / ON or OFF | ON: Rear door (LH or RH) is open OFF: Rear door (LH or RH) is closed | - |
| Head Light SW (Head) | Headlight control switch / ON or OFF | ON: Light control switch is in HEAD position OFF: Light control switch is not in HEAD position | - |
| Illumination Rate Info | Illumination information / 0 to 99.99 ms | 0.8 to 22 ms | - |
| Illumination SW | Front interior light switch (marked ON / OFF) signal / ON or OFF | ON: Front interior light switch (marked ON / OFF) is pushed in OFF: Front interior light switch (marked ON / OFF) is not pushed in | - |
| Item | Measurement Item / Display (Range) | Normal Condition | Diagnostic Note |
| Back-up Light Switch | Back-up light switch signal / ON or OFF | ON: Shift lever is in reverse position OFF: Shift lever is not in reverse position | Displayed for M/T vehicles only |
| Interior Light | Front interior light switch (marked DOOR) signal / ON or OFF | ON: Front interior light switch (marked DOOR) is pushed in OFF: Front interior light switch (marked DOOR) is not pushed in | - |
| Exterior Foot Light Lighting Time | Door mirror foot light lighting time /30 sec., 15 sec. or 7.5 sec. | Customized value will be displayed | - |
| Shift Light Control | Shift illumination control / AVAIL or NOT AVL | Customized value will be displayed | - |
| Exterior Foot Light Control | Door mirror foot light control AVAIL or NOT AVL | Customized value will be displayed | - |
| IG SW | Engine switch / ON or OFF | ON: Engine switch on (IG) OFF: Engine switch off | - |
| Item | Measurement Item / Display (Range) | Normal Condition | Diagnostic Note |
| AFS OFF Switch | ASF OFF switch / ON or OFF | ON: AFS OFF OFF: AFS ON | - |
| Headlamp Signal | Headlight signal / ON or OFF | ON: Light control switch is in HEAD position OFF: Light control switch is not in HEAD | - |
| Headlamp Combi Switch | Light control switch signal / ON or OFF | ON: Light control switch is in HEAD position OFF: Light control switch is not in HEAD position | - |
| Headlamp Auto Signal | Headlight signal / ON or OFF | ON: Automatic light control system is operated (headlight comes on) OFF: Automatic light control system is stopped | - |
| +B | Battery voltage value / 0 to 20 | Condition sign can be displayed | - |
| Height Sens PW Supply Val | Height sensor power supply value / 0 to 5 | Approx. 5 V | - |
| Fr Height Sens Signal Val | Front height sensor signal value / 0 to 5 | Approx. 2.5 V | - |
| Rr Height Sens Signal Val | Rear height sensor signal value / 0 to 5 | Approx. 2.5 V | - |
| Steering Sens Signal | Steering sensor signal / -384° to 382.5° | Approx. 0 ° (When steering wheel is straight) | - |
| Steering Sens Center Pos | Steering sensor center position / -307.2° to 307.5° | Condition sign can be displayed | - |
| L Swivel Motor Pos Sens Val | Left swivel motor position sensor value / 0 to 5 | Condition sign can be displayed | - |
| R Swivel Motor Pos Sens Val | Right swivel motor position sensor value / 0 to 5 | Condition sign can be displayed | - |
| PERFORM ACTIVE TEST |
- HINT:
- Performing the intelligent tester ACTIVE TEST allows a relay, VSV, actuator, and other items to be operated without removing any parts. Performing the ACTIVE TEST early in troubleshooting is one way to save time. The DATA LIST can be displayed during the ACTIVE TEST.
Connect the intelligent tester to the LDC3.
Turn the engine switch on (IG).
Perform the ACTIVE TEST according to the display on the tester.
| Item | Test Details | Diagnostic Note |
| Hazard | Hazard light ON / OFF | - |
| Headlight Relay | Headlight relay ON / OFF | - |
| Taillight Relay | Tail light relay ON / OFF | - |
| Dimmer Signal | Dimmer signal ON / OFF | - |
| Step Light Operation | Footwell light ON / OFF | - |
| Interior Panel Relay | Instrument panel light ON / OFF | Models with DRL |
| Item | Test Details | Diagnostic Note |
| Rear Fog Light | Rear fog light operation ON / OFF | - |
| Turn Lamp RH | Turn signal light operation ON / OFF | - |
| Turn Lamp LH | Turn signal light operation ON / OFF | - |
| Shift Light Operation | Shift illumination operation ON / OFF | - |
| Interior Light Operation | Interior lights ON / OFF | - |
| Interior Light (Dim) Operation | Seat illumination ON / OFF | - |
| Exterior Foot Light Operation | Door mirror foot lights ON / OFF | - |
| Item | Test Details | Diagnostic Note |
| Light Head (High) | Headlight (High) ON / OFF | - |
| Front Fog Light Relay | Front fog light relay ON / OFF | - |
| Clearance Light Operation | Clearance light ON / OFF | - |
| Item | Test Details | Diagnostic Note |
| Drive The Leveling Motor | Drive the leveling motor UP / OFF | - |
| Drive The Leveling Motor | Drive the leveling motor DOWN / OFF | - |
| Drive Swivel Motor RH | Drive swivel motor RH RIGHT / OFF | - |
| Drive Swivel Motor LH | Drive swivel motor LH LEFT / OFF | - |
| AFS OFF Indicator | AFS OFF indicator ON / OFF | - |
LEXUS IS250, IS220d / GSE20 ALE20