Cruise Control Switch Circuit
CRUISE CONTROL: CRUISE CONTROL SYSTEM: Cruise Control Switch Circuit
- Cruise Control Switch Circuit
DESCRIPTION
The cruise control switch is used to turn the cruise control system on and off, as well as operate 7 functions: SET, - (COAST), TAP-DOWN, RES (RESUME), + (ACCEL), TAP-UP and CANCEL. The SET, TAP-DOWN and - (COAST) functions, and the RES (RESUME), TAP-UP and + (ACCEL) functions are operated with the same switch. The cruise control switch is an automatic return type switch which turns on only while operating it in the direction of each arrow and turns off after releasing it. The internal contact points of the cruise control switch turn on with switch operation. Then the ECM reads the voltage value that has been changed by the switch operation to control SET, - (COAST), RES (RESUME), + (ACCEL), and CANCEL.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. READ VALUE ON TECHSTREAM
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Select the following menu items: Powertrain / Cruise Control / Data List.
(e) Check the Data List to confirm proper functioning of the cruise control switch.
Text in Illustration
Cruise Control
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 Symptom Related Diagnostic Procedures
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
NG -- REPLACE CRUISE CONTROL SWITCH Removal
OK -- Continue to next step.
3. CHECK CRUISE CONTROL SWITCH WIRE
(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
NG -- REPAIR OR REPLACE CRUISE CONTROL SWITCH WIRE
OK -- Continue to next step.
4. CHECK 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 prevent the airbag from deploying. Be sure to read the pages shown in the brackets.
HINT
* Removal Removal
* Installation Installation
(a) Remove the spiral cable sub-assembly.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open):
(c) After setting the spiral cable sub-assembly to the center position, rotate the spiral cable sub-assembly 2.5 times clockwise. Then while rotating the spiral cable sub-assembly 5 times counterclockwise, measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open):
Text in Illustration
HINT
The spiral cable sub-assembly makes a maximum of approximately 5 rotations.
NG -- REPLACE SPIRAL CABLE SUB-ASSEMBLY Removal
OK -- Continue to next step.
5. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM AND BODY GROUND)
(a) Disconnect the ECM 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):
for 2AR-FE
for 2GR-FE
Standard Resistance (Check for Short):
for 2AR-FE
for 2GR-FE
(d) Reconnect the spiral cable sub-assembly connector.
(e) Reconnect the ECM connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM)
OK -- Continue to next step.
6. 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):
Result:
(c) Reconnect the spiral cable sub-assembly connector.
B -- REPLACE ECM Removal
C -- REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND)
A -- REPLACE ECM Removal