| Last Modified: 11-29-2007 | 1.6 U | |
| Service Category: Engine/Hybrid System | Section: Cruise Control | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000001XOS003X |
| Title: CRUISE CONTROL: DYNAMIC LASER CRUISE CONTROL SYSTEM: DATA LIST / ACTIVE TEST (2008 Sequoia) | ||
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.
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Laser Cruise / Data List.
(e) Read the Data List according to the display on the Techstream.
ECM (Laser Cruise)
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Accel Request |
Accelerator request signal / min.: -2621.44 k/h/s, max.: 2621.36 k/h/s |
Actual demanded acceleration request |
- |
|
Vehicle Distance |
Laser radar sensor / min.: 0 m (0 ft.), max.: 255 m (836.65 ft.) |
Distance to vehicle in front |
- |
|
L/C Option Flag |
Dynamic laser cruise option flag / No or Yes |
Yes: Dynamic laser cruise control system can be used No: Dynamic laser cruise control system cannot be used |
- |
|
Car Dist Time Setting |
Vehicle distance time setting condition / Shrt, Mid, Long, No |
Vehicle-to-vehicle distance selected by steering pad switch (distance control switch) |
- |
|
O/D Cut Request |
O/D cut request / Not Req or Request |
Not Req: Idling |
- |
|
Shift Down Rqst to 3rd |
Shift down request to 3rd gear / Not Req or Request |
Not Req: Idling |
- |
|
Shift Down Rqst to 4th |
Shift down request to 4th gear / Not Req or Request |
Not Req: Idling |
- |
|
Shift Down Rqst to 5th |
Shift down request to 5th gear / Not Req or Request |
Not Req: Idling |
- |
|
Alarm Request |
Alarm request signal / Not Req or Request |
Request: When beeping Not Req: When not beeping |
- |
|
All Throttle Close Rqst |
All throttle close request / Not Req or Request |
Request: All throttle close control active Not Req: All throttle close control not active |
- |
|
Brake Control Request |
Brake control request / Not Req or Request |
Request: brake control active Not Req: brake control not active |
- |
|
Targ Decl Slope |
Cruise target deceleration slope / 0.03, 0.06, 0.11, 0.15 |
0.03, 0.06, 0.11, 0.15 |
- |
|
CCS Vehicle Spd |
Vehicle speed sensor / min.: 0 km/h (0 mph), max.: 255 km/h (158 mph) |
Actual vehicle speed |
- |
|
CCS Mem Vehicle Spd |
Cruise control memorized speed / min.: 0 km/h (0 mph), max.: 200 km/h (125 mph) |
Memorized speed: Cruise control activated |
- |
|
Throttle Opening Angle |
Throttle opening angle / min.: 0°, max.: 125° |
Actual demanded throttle angle |
- |
|
Cruise Control |
Cruise control system active condition / ON or OFF |
ON: Cruise control activated OFF: Cruise control deactivated |
- |
|
Main SW M-CPU |
Main switch signal (Main CPU) / ON or OFF |
ON: Main switch on OFF: Main switch off |
"3" |
|
CCS Ready M-CPU |
Cruise control system standby condition (Main CPU) / ON or OFF |
Each time main switch is pushed, ON/OFF changes |
"1" |
|
CCS Indicator M-CPU |
Cruise indicator signal (Main CPU) / ON or OFF |
ON: "CRUISE" on OFF: "CRUISE" off |
"2" |
|
Cancel Switch |
CANCEL switch signal / ON or OFF |
ON: CANCEL switch on OFF: CANCEL switch off |
- |
|
SET/COAST Switch |
SET/COAST switch signal / ON or OFF |
ON: - (COAST)/SET switch on OFF: - (COAST)/SET switch off |
- |
|
RES/ACC Switch |
RES/ACC switch signal / ON or OFF |
ON: + (ACCEL)/RES (RESUME) switch on OFF: + (ACCEL)/RES (RESUME) switch off |
- |
|
Stp Light SW M-CPU |
Stop light switch signal (Main CPU) / ON or OFF |
ON: Brake pedal depressed OFF: Brake pedal released |
- |
|
Cruise Operation Status |
Transmission range sensor signal / ON or OFF |
ON: Shift lever in D or S4 range OFF: Shift lever not in D or S4 range |
- |
|
VSC Fail Safe Flag |
VSC fail-safe flag / ON or OFF |
ON: VSC communication fail safe in operation OFF: VSC communication fail safe not operation |
- |
|
# Codes |
Number of DTC recorded / 0 to 255 |
0 |
- |
HINT:
"3" is OK, but "1" is NG → ECM failure
"1" is OK, but "2" is NG → DTC output or ECM failure
"3" is OK, but cruise indicator does not turn on → Indicator, wire harness, or ECM failure
2. 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 ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: All ECUs / (desired system) / Active Test.
(e) Perform Active Test according to the display on the Techstream.
HINT:
The ignition switch must be turned on to proceed with the Active Test using the Techstream.
ABS/VSC/TRAC
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Buzzer |
Skid control buzzer |
ON/OFF |
Buzzer can be heard |
Combination Meter
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Indicat. Lamp Cruise |
"CRUISE" indicator light |
BLINK/OFF |
- |
|
|