| Last Modified: 11-27-2007 | 1.6 U | |
| Service Category: Engine/Hybrid System | Section: Cruise Control | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000002L7700AX |
| Title: CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL 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: Powertrain / Radar Cruise / Data List.
(e) According to the display on the Techstream, read the "Data List".
Radar Cruise
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Accel Request |
Accelerator request signal / min.: -2621.44 km/h/s, max.: 2621.36 km/h/s |
Actual demanded acceleration request |
- |
|
Vehicle Distance |
Millimeter wave radar sensor / min.: 0 m (0 ft.), max.: 255 m (836.65 ft.) |
Distance to the vehicle in front |
- |
|
L/C Option Flag |
Dynamic radar cruise option flag / NO or YES |
YES: Vehicle-to-vehicle distance control mode is selectable NO: Vehicle-to-vehicle distance control mode is not selectable |
- |
|
Car Dist Time Setting |
Vehicle distance time setting condition / SHORT, MID, LONG or NO |
Vehicle distance selected by steering pad switch (distance control switch) |
- |
|
O/D Cut Request |
O/D cut request / Not Request or Request |
Not Request: Idling Request: Performed |
- |
|
Shift Down Rqst to 3rd |
Shift down request to 3rd gear / Not Request or Request |
Not Request: Idling Request: Performed |
- |
|
Shift Down Rqst to 4th |
Shift down request to 4th gear / Not Request or Request |
Not Request: Idling Request: Performed |
- |
|
Shift Down Rqst to 5th |
Shift down request to 5th gear / Not Request or Request |
Not Request: Idling Request: Performed |
- |
|
Shift Down Rqst to 6th |
Shift down request to 6th gear / Not Request or Request |
Not Request: Idling Request: Performed |
- |
|
Alarm Request |
Alarm request signal / Not Request or Request |
Request: When beeping Not Request: When not beeping |
- |
|
All Throttle Close Rqst |
All throttle close request / Not Request or Request |
Request: Requested Not Request: Not requested |
- |
|
Brake Control Request |
Brake control request / Not Request or Request |
Request: Requested Not Request: Not requested |
- |
|
Targ Decl Slope |
Cruise target deceleration slope / 0, 1, 2 or 3 |
0, 1, 2 or 3 |
- |
|
CCS Vehicle Spd |
Vehicle speed / min.: 0 km/h (0 mph), max.: 255 km/h (159 mph) |
Actual vehicle speed displayed |
- |
|
CCS Mem Vehicle Spd |
Vehicle speed / min.: 0 km/h (0 mph), max.: 200 km/h (125 mph) |
Actual vehicle speed stored in memory |
- |
|
Cruise Operation Status |
Transmission range sensor signal / ON or OFF |
ON: Shift lever in D (6th, 5th or 4th gear) OFF: Shift lever not in D (6th, 5th or 4th gear) |
- |
|
Cruise Control |
Cruise control / ON or OFF |
ON: Cruise control operating OFF: Cruise control not operating |
- |
|
CCS Indicator M-CPU |
CRUISE main indicator light (Main CPU) / ON or OFF |
ON: CRUISE main indicator light on OFF: CRUISE main indicator light off |
- |
|
CCS Indicator S-CPU |
CRUISE main indicator light (Sub CPU) / ON or OFF |
ON: CRUISE main indicator light on OFF: CRUISE main indicator light off |
- |
|
CCS Ready S-CPU |
Cruise control system standby condition (Sub CPU) / ON or OFF |
ON: Cruise control main switch (Sub CPU) on OFF: Cruise control main switch (Sub CPU) off |
- |
|
CCS Ready M-CPU |
Cruise control system standby condition (Main CPU) / ON or OFF |
ON: Cruise control main switch (Main CPU) on OFF: Cruise control main switch (Main CPU) off |
- |
|
Main SW M-CPU |
Cruise control main switch (Main CPU) / ON or OFF |
ON: Cruise control main switch (Main CPU) on OFF: Cruise control main switch (Main CPU) off |
- |
|
Main SW S-CPU |
Cruise control main switch (Sub CPU) / ON or OFF |
ON: Cruise control main switch (Sub CPU) on OFF: Cruise control main switch (Sub CPU) off |
- |
|
Cancel Switch |
CANCEL switch / ON or OFF |
ON: CANCEL switch on OFF: CANCEL switch off |
- |
|
SET/COAST Switch |
-SET switch / ON or OFF |
ON: -SET switch on OFF: -SET switch off |
- |
|
RES/ACC Switch |
+RES switch / ON or OFF |
ON: +RES switch on OFF: +RES switch off |
- |
|
Stop Light SW M-CPU |
Stop light switch signal (Main CPU) / ON or OFF |
ON: Brake pedal depressed OFF: Brake pedal released |
- |
|
Stop Light SW S2-CPU |
Stop light switch signal (Sub2 CPU) / ON or OFF |
ON: Brake pedal depressed OFF: Brake pedal released |
- |
|
Stop Light SW S1-CPU |
Stop light switch signal (Sub1 CPU) / ON or OFF |
ON: Brake pedal depressed OFF: Brake pedal released |
- |
|
Throttle Opening Angle |
Cruise throttle opening angle / min.: 0 deg, max.: 125 deg |
Actual demanded throttle angle |
- |
|
# Codes |
Number of trouble codes / Min.: 0, Max.: 255 |
- |
- |
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.
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: All ECUs/ (desired system) / Active Test.
(e) According to the display on the Techstream, perform the "Active Test".
Combination Meter
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Indicat. Lamp Cruise |
CRUISE main indicator light operation |
OFF or ON |
- |
ABS/VSC/TRAC
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Buzzer |
Skid control buzzer sounds |
OFF or ON |
- |
|
|