DESCRIPTION
The driving support ECU receives a lane departure alert main switch signal from the steering pad switch assembly and sends the signal to the lane departure warning camera via CAN communication.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
READ VALUE USING GTS (CAN BUS CHECK)
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Enter the following menus: System Select / Can Bus Check.
Result | ||||||
---|---|---|---|---|---|---|
|
Turn the engine switch off.
B |
GO TO CAN COMMUNICATION SYSTEM Click here |
A |
CHECK FOR DTCs (HEALTH CHECK)
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Enter the following menus: System Select / Health Check.
Check DTCs.
Result | Proceed to |
---|---|
No DTCs are output. | A |
DTCs are output. | B |
Turn the engine switch off.
B |
GO TO DTC CHART |
A |
INSPECT STEERING PAD SWITCH ASSEMBLY
Remove the horn button assembly Click here.
Disconnect the z5 spiral cable with sensor sub-assembly connector.
Measure the resistance according to the value(s) in the table below.
*1 | Lane Departure Alert Main Switch | - | - |
*a | Component without harness connected (Steering Pad Switch Assembly) |
- | - |
Standard Resistance | ||||||||
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|
Reconnect the z5 spiral cable with sensor sub-assembly connector.
Reinstall the horn button assembly Click here.
NG |
REPLACE STEERING PAD SWITCH ASSEMBLY Click here |
OK |
INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY
Note
The spiral cable with sensor sub-assembly is an important part of the SRS airbag system. Incorrect removal or installation of the spiral cable with sensor sub-assembly may cause airbag deployment. Be sure to read the pages shown in the brackets.
Remove the spiral cable with sensor sub-assembly.
*a | Component without harness connected (Spiral Cable with Sensor Sub-assembly) |
*b | Steering Pad Switch Assembly Side |
*c | Vehicle Side |
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||
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Tech Tips
The spiral cable with sensor sub-assembly makes a maximum of approximately 5 rotations.
After setting the spiral cable with sensor sub-assembly to the center position, rotate the spiral cable with sensor sub-assembly 2.5 times clockwise. Then while rotating the spiral cable with sensor sub-assembly 5 times counterclockwise, measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||
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|
Tech Tips
The spiral cable with sensor sub-assembly makes a maximum of approximately 5 rotations.
Reinstall the spiral cable with sensor sub-assembly.
NG |
REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY Click here |
OK |
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - DRIVING SUPPORT ECU ASSEMBLY)
Disconnect the H22 spiral cable with sensor sub-assembly connector.
Disconnect the H75 driving support ECU assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open) | ||||||
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|
Standard Resistance (Check for Short) | ||||||
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|
Reconnect the H75 driving support ECU assembly connector.
Reconnect the H22 spiral cable with sensor sub-assembly connector.
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - BODY GROUND)
Disconnect the H22 spiral cable with sensor sub-assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open) | ||||||
---|---|---|---|---|---|---|
|
Reconnect the H22 spiral cable with sensor sub-assembly connector.
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here