Cruise Control Switch Circuit

CRUISE CONTROL: CRUISE CONTROL SYSTEM: Cruise Control Switch Circuit
- Cruise Control Switch Circuit

DESCRIPTION

The cruise control switch operates 7 functions: SET, - (COAST), TAP-DOWN, RES (RESUME), + (ACCEL), TAP-UP, and CANCEL. The SET, TAP-DOWN, and - functions, and the RES, TAP-UP, and + functions are operated with the same switch. The cruise control switch is an automatic return type switch which turns on only while it is being operated it in the direction of each arrow and turns off after being released. The internal contact point of the cruise control switch is turned on with the switch operation. Then the power management control ECU reads the voltage value that has been changed by the switch operation to control the SET, -, RES, +, and CANCEL functions.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.





(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Cruise Control / Data List.

(e) Check the Data List to confirm proper function of the cruise control switch.

Cruise Control





Text in Illustration





OK:

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

NG -- INSPECT CRUISE CONTROL SWITCH

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

2. INSPECT CRUISE CONTROL SWITCH

(a) Remove the cruise control switch Removal.





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

Standard Resistance:





Text in Illustration





(c) Reinstall the cruise control switch Installation.

NG -- REPLACE CRUISE CONTROL SWITCH Removal
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (CRUISE CONTROL SWITCH - SPIRAL CABLE SUB-ASSEMBLY)

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





(b) Disconnect the cruise control switch connector.

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

Standard Resistance (Check for Open):





Text in Illustration





(d) Reconnect the cruise control switch connector.

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

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

4. CHECK SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY

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

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





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

Standard Resistance (Check for Open):





Text in Illustration





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

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

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

5. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - POWER MANAGEMENT CONTROL ECU)

(a) Disconnect the power management control ECU connector.

(b) Disconnect the spiral with sensor 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):





(d) Reconnect the spiral with sensor cable sub-assembly connector.

(e) Reconnect the power management control ECU connector.

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

6. CHECK HARNESS AND CONNECTOR (SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY - BODY GROUND)

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

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

OK -- REPLACE POWER MANAGEMENT CONTROL ECU Removal