Data List / Active Test [10/2016 - 09/2020]
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2020 Lexus IS 350, 2020 Lexus IS 300, 2019 Lexus IS 350, 2019 Lexus IS 300, and 2018 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.
- DATA LIST NOTE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
HINT:
Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Body Electrical / AFS / Data List.
- Read the Data List according to the display on the Techstream.
Body Electrical > AFS > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note AFS OFF Switch AFS On/Off switch signal OFF or ON OFF: AFS On/Off switch is off
ON: AFS On/Off switch is on- 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 OFF or ON OFF: Low beam headlights off
ON: Low beam headlights on- Headlight High Beam State High beam headlight state OFF or ON OFF: High beam headlights off
ON: High beam headlights on- DRL State Daytime running light state OFF or ON OFF: Daytime running lights off
ON: Daytime running lights on- Engine Engine condition Stop or Run Stop: Engine is stopped
Run: Engine is running- +B Headlight swivel ECU assembly IG power supply voltage value 0.00 to 19.75 V 11.00 to 14.00 V - Height Sens Pw Supply Val Rear height control sensor sub-assembly LH power supply value 0.00 to 6.25 V 4.61 to 5.00 V - Rr Height Sens Signal Val Rear height control sensor sub-assembly LH signal value 0.00 to 5.00 V 0.50 to 4.50 V Value changes according to vehicle height. Steering Sens Signal Steering sensor signal value -384.0 to 382.5 deg 0.0 deg - Steering Sens Center Pos Steering sensor center position -3072.0 to 3070.5 deg 0.0 deg - FR Wheel Speed Front right wheel speed 0.00 to 327.67 km/h (203.61 mph) Vehicle stopped: 0 km/h (0 mph) - FL Wheel Speed Front left wheel speed 0.00 to 327.67 km/h (203.61 mph) Vehicle stopped: 0 km/h (0 mph) - Vehicle Speed Vehicle speed 0.00 to 327.67 km/h (203.61 mph) Vehicle stopped: 0 km/h (0 mph) - Rear Height Adjust Valid Flag Rear height adjustment range Inval or Valid Inval: Rear height control sensor sub-assembly LH value out of normal range
Valid: Rear height control sensor sub-assembly LH value within normal range- Init Writing Count Number of times performed initialization 0 to 255 Number of times initialization performed - Sensor Initialization Hist Sensor initialization history not comp, 10%, 25%, 50%, 75%, 100% or complied - not comp: Headlight swivel ECU assembly not initialized after replacement
- 10%: Initialization completed when fuel tank was 10% full
- 25%: Initialization completed when fuel tank was 25% full
- 50%: Initialization completed when fuel tank was 50% full
- 75%: Initialization completed when fuel tank was 75% full
- 100%: Initialization completed when fuel tank was 100% full
- complied: Headlight swivel ECU assembly not replaced and not initialized
- L Swivel Target Step Headlight swivel motor LH target step value 0 to 400 step 49 to 301 step - L Swivel Current Step Headlight swivel motor LH current step value 0 to 400 step 49 to 301 step - R Swivel Target Step Headlight swivel motor RH target step value 0 to 400 step 24 to 200 step - R Swivel Current Step Headlight swivel motor RH current step value 0 to 400 step 24 to 200 step - LR Leveling Target Step Headlight swivel motor LH and RH target step value 0 to 500 step 98 to 363 step - L Leveling Current Step Headlight swivel motor LH current step value 0 to 500 step 98 to 363 step - R Leveling Current Step Headlight swivel motor RH current step value 0 to 500 step 98 to 363 step - Number Of Trouble Codes Number of trouble codes 0 to 255 Number of stored DTCs displayed -
- ACTIVE TEST
HINT:
Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Body Electrical / AFS / Active Test.
- Perform the Active Test according to the display on the Techstream.
Body Electrical > AFS > Active Test
Tester Display Measurement Item Control Range Diagnostic Note Drive The Leveling Motor Headlight swivel motor upward or downward operation Stop, Down or Up Perform the Active Test with the engine started and vehicle stopped. Drive Swivel Motor LH Headlight swivel motor LH left or right direction rotation Stop, Left or Right Perform the Active Test with the engine started and vehicle stopped. Drive Swivel Motor RH Headlight swivel motor RH left or right direction rotation Stop, Left or Right Perform the Active Test with the engine started and vehicle stopped. AFS OFF Indicator AFS OFF indicator OFF or ON -