| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Engine/Hybrid System | Section: Cruise Control | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000000V18017X |
| Title: CRUISE CONTROL: DYNAMIC LASER CRUISE CONTROL SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
Distance Control Switch Circuit |
DESCRIPTION
The distance control switch sets the vehicle-to-vehicle distance mode. The distance control switch is installed in the steering pad switch. The vehicle-to-vehicle distance set value can be changed by operating the steering pad switch (distance control switch) while the dynamic laser cruise control system is in operation.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
INSPECT STEERING PAD SWITCH ASSEMBLY |
(a) Remove the steering pad switch assembly
.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
z12-4 (DIST) - z12-6 (ECC) |
Distance control switch is ON |
Below 1 Ω |
|
Distance control switch is OFF |
10 kΩ or higher |
HINT:
When a malfunction is detected in the distance control switch, replace the steering pad switch assembly.
|
|
2. |
INSPECT SPIRAL CABLE |
NOTICE:
The spiral cable is an important part of the SRS airbag system. Incorrect removal or installation of the spiral cable may cause airbag deployment. Be sure to read the page shown in the brackets.
HINT:
-
Removal
-
Installation
|
(a) Remove the spiral cable. |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Condition |
Spiral Cable Position |
Specified Condition |
|---|---|---|
|
z12-4 (DIST) - H54-11 (DIST) |
Center |
Below 1 Ω |
|
2.5 rotations to the left |
||
|
2.5 rotations to the right |
||
|
z12-6 (ECC) - H54-2 (ECC) |
Center |
Below 1 Ω |
|
2.5 rotations to the left |
||
|
2.5 rotations to the right |
HINT:
The spiral cable makes a maximum of approximately 5 rotations.
|
|
3. |
CHECK HARNESS AND CONNECTOR (DISTANCE CONTROL ECU - SPIRAL CABLE) |
|
(a) Disconnect the A43 distance control ECU connector. |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
H54-11 (DIST) - A43-16 (MODE) |
Always |
Below 1 Ω |
|
A43-16 (MODE) - Body ground |
Always |
10 kΩ or higher |
|
|
4. |
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - BODY GROUND) |
|
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
|
5. |
INSPECT DISTANCE CONTROL ECU |
|
(a) Remove the distance control ECU with the connector. |
(b) Turn the ignition switch to ON.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
A43-16 (MODE) - Body ground |
Distance control switch ON |
Below 2 V |
|
A43-16 (MODE) - Body ground |
Distance control switch OFF |
11 to 14 V |
|
|
|