Lexus NX: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedures to troubleshoot the clock system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK

NEXT

3.

INSPECT AUXILIARY BATTERY VOLTAGE

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

Standard voltage:

11 to 14 V

HINT:

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

NEXT

4.

CHECK NAVIGATION SYSTEM*

(a) Using the Techstream, check if the navigation system is functioning normally.

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

Click here

Body Electrical > Navigation System > Trouble Codes

(2) Clear the DTCs.

Click here

Body Electrical > Navigation System > Clear DTCs

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

Click here

Body Electrical > Navigation System > Trouble Codes

OK:

DTCs are not output.

NG

GO TO NAVIGATION SYSTEM

OK

5.

PROBLEM SYMPTOMS TABLE

HINT:

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

6.

OVERALL ANALYSIS AND TROUBLESHOOTING

(a) Terminals of ECU

Click here

NEXT

7.

ADJUST, REPAIR OR REPLACE

NEXT

8.

CONFIRMATION TEST

NEXT

END

READ NEXT:

 Customize Parameters

CUSTOMIZE PARAMETERS CUSTOMIZING WITH MULTI-DISPLAY (a) Turn the power switch on (IG). (b) Time zone setting (1) Using the multi-display, select "Setup", "General", "Clock", and then time zone and cha

 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE NOTICE: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order

 Terminals Of Ecu

TERMINALS OF ECU CLOCK ASSEMBLY Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition I163-1 (ILL-) - Body ground G - Body ground Illumination signa

SEE MORE:

 Data List / Active Test

DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the following table, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. HINT: Using the Techstream to read the Data List allows the values or state

 Components

COMPONENTS ILLUSTRATION *1 DECK FLOOR BOX LH *2 NO. 3 DECK BOARD SUB-ASSEMBLY *3 REAR DECK FLOOR BOX *4 NEGATIVE AUXILIARY BATTERY TERMINAL N*m (kgf*cm, ft.*lbf): Specified torque - - ILLUSTRATION *1 AIR CONDITIONING CONTROL ASSEMBLY *2 CENTER HEATER TO RE

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