Lexus NX: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the intuitive parking assist system.
- *: Use the Techstream.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
|
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| 2. | CUSTOMER PROBLEM ANALYSIS |
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| 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, replace or recharge the auxiliary battery before proceeding to the next step.
|
| 4. | CHECK CAN COMMUNICATION SYSTEM* |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Click here .gif)
| Result | Proceed to |
|---|---|
| CAN communication system DTCs are not output | A |
| CAN communication system DTCs are output | B |
| B | .gif) | GO TO CAN COMMUNICATION SYSTEM |
|
| 5. | PROBLEM SYMPTOM CONFIRMATION |
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| 6. | CHECK DTC* |
(a) Check for DTCs.
Click here
| Result | Proceed to |
|---|---|
| DTCs are output | A |
| DTCs are not output (Problem symptom does not occur) | B |
| DTCs are not output (Problem symptom occurs) | C |
| B | | GO TO STEP 8 |
| C | | GO TO STEP 9 |
|
| 7. | DIAGNOSTIC TROUBLE CODE CHART (INTUITIVE PARKING ASSIST SYSTEM) |
(a) Refer to Diagnostic Trouble Code Chart.
Click here
NOTICE:
The clearance warning ECU assembly outputs DTCs for the following system. When DTCs other than those in Diagnostic Trouble Code Chart for the intuitive parking assist system are output, refer to Diagnostic Trouble Code Chart for the relevant systems.
| System | Proceed to |
|---|---|
| Intelligent Clearance Sonar System | |
| NEXT | | GO TO STEP 11 |
| 8. | SYMPTOM SIMULATION |
(a) Refer to Symptom Simulation.
Click here
|
| 9. | 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 | | GO TO STEP 11 |
|
| 10. | OVERALL ANALYSIS AND TROUBLESHOOTING |
(a) Operation Check
Click here
(b) Terminals of ECU
Click here
(c) Data List / Active Test
Click here
|
| 11. | CIRCUIT INSPECTION |
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| 12. | IDENTIFICATION OF PROBLEM |
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| 13. | REPAIR OR REPLACE |
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| 14. | CONFIRMATION TEST |
| NEXT | | END |
READ NEXT:
Operation Check
OPERATION CHECK INITIAL CHECK (a) Power switch on (IG) (intuitive parking assist system off). (b) Intuitive parking assist system on and check an indication state of the vehicle mark. OK: The initial
Customize Parameters
CUSTOMIZE PARAMETERS CUSTOMIZE INTUITIVE PARKING ASSIST SYSTEM (a) Customizing with the Techstream. NOTICE:
When the customer requests a change in a function, first make sure that the function can
Calibration
CALIBRATION NOTICE: When any of the following parts have been replaced, perform adjustment shown in the following table. If not, the intuitive parking assist system may not operate correctly. ADJUST I
SEE MORE:
Operation Check
OPERATION CHECK AUTOMATIC HIGH BEAM SYSTEM OPERATION CHECK (a) Check the operation of the automatic high beam indicator light. *a Automatic High Beam Indicator Light NOTICE: If the forward recognition camera cannot correctly recognize the front due to bad weather (dense fog, etc.) or obstru
Open Circuit in Main Relay 1 (C1311,C1312)
DESCRIPTION The ABS main relay supplies power to the changeover solenoid and the linear solenoid. The ABS main relay remains on for approximately 2 minutes after the power switch is turned off and the input of brake pedal operation signals stops, and supplies power to the system to keep it ready to
