Distance Control Switch Circuit

CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: Distance Control Switch Circuit
- Distance Control Switch Circuit

DESCRIPTION

The distance control switch sets the vehicle-to-vehicle distance control mode. The distance control switch is installed in the steering pad switch assembly. The vehicle-to-vehicle distance set value can be changed by operating the steering pad switch assembly (distance control switch) while the dynamic radar cruise control system is operating.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
When the distance control ECU is replaced with a new one, initialization must be performed Installation.

PROCEDURE

1. READ VALUE USING TECHSTREAM (DISTANCE CONTROL SWITCH)

(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) Check the Data List for proper functioning of the distance control switch.

Radar Cruise





OK:

When the distance control switch is operated, the display changes as shown above.

NG -- INSPECT STEERING PAD SWITCH ASSEMBLY

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Dynamic Radar Cruise Control System

2. INSPECT STEERING PAD SWITCH ASSEMBLY

(a) Disconnect the spiral cable sub-assembly connector.





Text in Illustration





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





(c) Reconnect the spiral cable sub-assembly connector.

NG -- REPLACE STEERING PAD SWITCH ASSEMBLY Removal
OK -- Continue to next step.

3. INSPECT SPIRAL CABLE SUB-ASSEMBLY

NOTICE:
The spiral cable sub-assembly is an important part of the SRS airbag system. Incorrect removal or installation of the spiral cable sub-assembly may cause airbag deployment. Be sure to read the page shown in the brackets.

HINT
* Removal Removal
* Installation Installation

(a) Remove the spiral cable sub-assembly Removal.





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





Text in Illustration





HINT
The spiral cable sub-assembly makes a maximum of approximately 5 rotations.

(c) Reinstall the spiral cable sub-assembly Installation.

NG -- REPLACE SPIRAL CABLE SUB-ASSEMBLY Removal
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - DISTANCE CONTROL ECU)

(a) Disconnect the distance control ECU connector.





(b) Disconnect the spiral cable sub-assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):





Standard Resistance (Check for Short):





Text in Illustration





(d) Reconnect the distance control ECU connector.

(e) Reconnect the spiral cable sub-assembly connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - DISTANCE CONTROL ECU)
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND)

(a) Disconnect the spiral cable sub-assembly connector.





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):





Text in Illustration





(c) Reconnect the spiral cable sub-assembly connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND)

OK -- REPLACE DISTANCE CONTROL ECU Removal