Lexus NX: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • Use these procedures to troubleshoot the airbag system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

INSPECT AUXILIARY BATTERY VOLTAGE

(a) Measure the auxiliary battery voltage with the power switch off.

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding.

NEXT

3.

CHECK CAN COMMUNICATION SYSTEM*

(a) Check for DTCs.

Click here

Body Electrical > SRS Airbag > Trouble Codes
DTC is output

GO TO CAN COMMUNICATION SYSTEM

DTC is not output

4.

SRS WARNING LIGHT CHECK

NEXT

5.

CHECK DTC (Present and Past DTCs)*

(a) Check for DTCs.

Click here

Body Electrical > SRS Airbag > Trouble Codes
DTC is not output

GO TO PROBLEM SYMPTOMS TABLE

DTC is output

6.

DIAGNOSTIC TROUBLE CODE CHART

(a) Diagnostic Trouble Code Chart.

Click here

NEXT

7.

CIRCUIT INSPECTION*

NEXT

8.

REPAIR

NEXT

9.

CLEAR DTC (Present and Past DTCs)*

(a) Clear the DTCs.

Click here

Body Electrical > SRS Airbag > Clear DTCs
NEXT

10.

CHECK DTC (Present and Past DTCs)*

(a) Check for DTCs.

Click here

Body Electrical > SRS Airbag > Trouble Codes
DTC is output

GO TO DIAGNOSTIC TROUBLE CODE CHART

DTC is not output

11.

CONFIRMATION TEST

NEXT

END

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