Lexus NX: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the lighting system.
- *: Use the Techstream.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
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| 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.
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| 3. | CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Click here .gif)
| CAN DTC is output | .gif) | GO TO CAN COMMUNICATION SYSTEM |
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| 4. | CHECK COMMUNICATION FUNCTION OF SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function)* |
(a) Use the Techstream to check if the smart access system with push-button start (for Entry Function) is functioning normally.
Click here
| DTC is output | | GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function) |
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| 5. | PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
| Fault is listed in Problem Symptoms Table | | ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE |
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| 6. | OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Operation Check
Click here
(b) Terminals of ECU
Click here
(c) Data List / Active Test
Click here
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| 7. | ADJUST, REPAIR OR REPLACE |
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| 8. | CONFIRM TEST |
| NEXT | | END |
READ NEXT:
Operation Check
OPERATION CHECK INSPECT ILLUMINATED ENTRY SYSTEM OPERATION NOTICE: Perform this inspection with the customizable parameters set to the initial settings. HINT: When inspecting the following functions,
Customize Parameters
CUSTOMIZE PARAMETERS CUSTOMIZE LIGHTING SYSTEM (INT) NOTICE:
When the customer requests a change in a function, first make sure that the function can be customized.
Record the current settings be
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
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 of
SEE MORE:
Definition Of Terms
DEFINITION OF TERMS Term Definition Monitor Description Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and details). Related DTCs Group of diagnostic trouble codes that are output by the ECM based on the same malfunction detection logic.
Display Malfunction (B15A6,B15B0)
DESCRIPTION These DTCs are stored when a malfunction occurs in the multi-display assembly. DTC No. Detection Item DTC Detection Condition Trouble Area B15A6 Display Malfunction When one of the conditions below is met:
RAM error
Drawing controller malfunction
Internal hard dri
