DRIVER ATTENTION ALERT DOES NOT OPERATE [DRIVER ATTENTION ALERT SYSTEM]

id1503a5014800

Note
•  If there is any vehicle malfunction complaint lodged by a customer, first perform malfunction diagnosis according to the troubleshooting procedure. (See FOREWORD [DRIVER ATTENTION ALERT SYSTEM].)

Description

•  The Driver Attention Alert does not operate even though the operation conditions for the Driver Attention Alert have been met.

Possible malfunction

•  Parking assist unit
•  Turn switch malfunction
•  Electric parking brake switch malfunction
•  Transaxle range sensor (TCM-integrated) malfunction

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY DTCs
•  Using the M-MDS, display the DTCs related to the parking assist unit.
•  Are any DTCs displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See DTC TABLE [PARKING ASSIST UNIT].)
No
Go to the next step.
2
DETERMINE IF MALFUNCTION IS DUE TO TURN SWITCH.
•  Verify that the indicators in the instrument cluster operate correctly in conjunction with the operation of the turn switch.
•  Do the indicators operate normally?
Yes
Go to the next step.
No
Replace the turn switch, then go to the next step.
(See LIGHT SWITCH INSPECTION.)
3
DETERMINE IF MALFUNCTION IS DUE TO ELECTRIC PARKING BRAKE SWITCH
•  Verify that the indicators in the instrument cluster operate correctly in conjunction with the operation of the electric parking brake switch.
•  Do the indicators operate normally?
Yes
Go to the next step.
No
Replace the electric parking brake switch, then go to the next step.
(See ELECTRIC PARKING BRAKE SWITCH REMOVAL/INSTALLATION.)
4
DETERMINE IF MALFUNCTION IS DUE TO TRANSAXLE RANGE SENSOR (TCM-INTEGRATED)
•  Verify that the gear position indicator in the instrument cluster displays correctly according to the shift operation.
•  Is the gear position indicator in the instrument cluster normal?
Yes
The system is normal therefore the symptom troubleshooting is completed. (Explain to the customer that there is no malfunction with the system.)
No
Replace the TCM.
(See CONTROL VALVE BODY REMOVAL/INSTALLATION [GW6A-EL, GW6AX-EL].)