Lexus NX: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedure to troubleshoot the meter / gauge system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

CUSTOMER PROBLEM ANALYSIS

NEXT

3.

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 to the next step.

NEXT

4.

CHECK CAN COMMUNICATION SYSTEM*

(a) Check if CAN communication DTCs are output.

Click here

OK:

CAN communication DTCs are not output.

NG

GO TO CAN COMMUNICATION SYSTEM

OK

5.

CHECK FOR DTC*

(a) Check for DTCs and note any codes that are output.

Click here

Body Electrical > Combination Meter > Trouble Codes

(b) Clear the DTCs.

Click here

Body Electrical > Combination Meter > Clear DTCs

(c) Recheck for DTCs by simulating the operation indicated by the DTCs.

Click here

Body Electrical > Combination Meter > Trouble Codes

OK:

No DTCs are output.

NG

GO TO DIAGNOSTIC TROUBLE CODE CHART

OK

6.

PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table.

Click here

Result

Proceed to

Fault is not listed in Problem Symptoms Table.

A

Fault is listed in Problem Symptoms Table.

B

B

PERFORM TROUBLESHOOTING BASED ON PROBLEM SYMPTOM

A

7.

PERFORM TROUBLESHOOTING BASED ON PROBLEM SYMPTOM*

(a) Operation Check.

Click here

(b) Terminals of ECU.

Click here

(c) Data List / Active Test.

Click here

NEXT

8.

ADJUST, REPAIR OR REPLACE

NEXT

9.

CONFIRMATION TEST

NEXT

END

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