| Last Modified: 11-27-2007 | 1.6 U | |
| Service Category: Vehicle Exterior | Section: Wiper/Washer | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000002M5Y006X |
| Title: WIPER / WASHER: WIPER AND WASHER SYSTEM: DATA LIST / ACTIVE TEST (2008 LX570) | ||
DATA LIST / ACTIVE TEST
1. READ DATA LIST
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.
NOTICE:
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.
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / (desired system) / Data List.
(e) According to the display on the Techstream, read the Data List.
Body No. 5
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Front Wiper Switch |
Front wiper switch / ON or OFF |
ON: Front wiper switch not in off position OFF: Front wiper switch in off position |
- |
|
Wiper Auto Switch |
Front wiper AUTO switch / ON or OFF |
ON: Front wiper switch in AUTO position OFF: Front wiper switch not in AUTO position |
- |
|
Wiper Lo Switch |
Front wiper LO switch / ON or OFF |
ON: Front wiper switch in LO position OFF: Front wiper switch not in LO position |
- |
|
Wiper Hi Switch |
Front wiper HI switch / ON or OFF |
ON: Front wiper switch in HI position OFF: Front wiper switch not in HI position |
- |
|
Wiper Mist Switch |
Front wiper MIST switch / ON or OFF |
ON: Front wiper switch in MIST position OFF: Front wiper switch not in MIST position |
- |
|
Washer Switch |
Front washer switch / ON or OFF |
ON: Front washer switch on OFF: Front washer switch off |
- |
Rain Sensor
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Rain Sensor Cold |
Rain sensor cold / COLD or OK |
COLD: Front wiper switch in AUTO position OK: Front wiper switch not in AUTO position |
- |
|
Rain Sensor Hot |
Rain sensor cold / HOT or OK |
HOT: Front wiper switch in AUTO position OK: Front wiper switch not in AUTO position |
- |
Body No. 4
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
IG SW |
Engine switch signal / ON or OFF |
ON: Engine switch on (IG) OFF: Engine switch off |
- |
|
Rear Wiper Switch |
Rear wiper switch / ON or OFF |
ON: Rear wiper switch not in off position OFF: Rear wiper switch in off position |
- |
|
Rear Wiper Int Switch |
Rear wiper INT switch / ON or OFF |
ON: Rear wiper switch in INT position OFF: Rear wiper switch not in INT position |
- |
|
Rear Wiper Lo Switch |
Rear wiper LO switch / ON or OFF |
ON: Rear wiper switch in LO position OFF: Rear wiper switch not in LO position |
- |
|
Rear washer Switch |
Rear washer switch / ON or OFF |
ON: Rear washer switch on OFF: Rear washer switch off |
- |
Main Body
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Stop Light SW |
Stop light switch signal / ON or OFF |
ON: Stop light switch on OFF: Stop light switch off |
- |
2. PERFORM 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.
NOTICE:
When a Body No. 5 (windshield wiper ECU) related front wiper switch is on, Active Test items related to the front wiper switch are prohibited (double operation prohibition). Check that the front wiper switches are off before performing Active Tests.
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / (desired system) / Active Test.
(e) According to the display on the Techstream, perform the Active Test.
Body No. 5
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Wiper Motor Hi |
Wiper motor HI operation |
ON / OFF |
- |
|
Wiper Motor Lo |
Wiper motor LO operation |
ON / OFF |
- |
Body No. 4
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Rear Wiper Lo |
Wiper motor LO operation |
ON / OFF |
- |
|
|