Lexus NX: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
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| 2. | CUSTOMER PROBLEM ANALYSIS |
(a) Interview the customer and confirm the problem.
Click here .gif)
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| 3. | INSPECT AUXILIARY BATTERY VOLTAGE |
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.
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| 4. | CHECK DTC AND FREEZE FRAME DATA* |
(a) Check and record DTCs and Freeze Frame Data.
for DTC Check / Clear: Click here
for Freeze Frame Data: Click here
(1) Record the DTC and Freeze Frame Data.
(b) Clear the DTCs and Freeze Frame Data.
for DTC Check / Clear: Click here
(c) Reconfirm the DTCs.
(1) Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data.
Chassis > Electric Parking Brake > Trouble Codes(2) Try to reproduce the problem symptoms based on the recorded DTCs and Freeze Frame Data, and then check if the DTCs are output again.
| Result | Proceed to |
|---|---|
| DTCs are not output and problem symptom can be confirmed and reproduced. | A |
| DTCs are not output. | B |
| DTCs are not output and problem symptom cannot be confirmed and reproduced. | C |
HINT:
- Refer to Diagnostic Trouble Code Chart when any DTCs are output
- When DTCs indicating a CAN communication system malfunction are output, first troubleshoot and repair the CAN communication system.
| B | .gif) | GO TO DIAGNOSTIC TROUBLE CODE CHART |
| C | | USE SIMULATION METHOD TO CHECK |
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| 5. | PROBLEM SYMPTOMS TABLE |
(a) Proceed to Problem Symptoms Table.
Click here
| Fault is listed in Problem Symptoms Table | | GO TO STEP 7 |
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| 6. | OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Refer to Terminals of ECU.
Click here
(b) Refer to Data List / Active Test.
Click here
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| 7. | REPAIR OR REPLACEMENT |
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| 8. | CONFIRMATION TEST |
| NEXT | | END |
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Test Mode Procedure
TEST MODE PROCEDURE REAR BRAKE PAD REPLACEMENT MODE *1 Rear Disc Brake Piston *2 Nut *a Move nut back inside using pad replacement mode HINT: When replacing the rear disc brake pa
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
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC AND FREEZE FRAME DATA (a) Turn the power switch off. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG) and the Techstream on. (d) Enter the followin
SEE MORE:
Front Camera Module Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Front Camera Module Communication Stop Mode Any of the following conditions are met:
Communication stop for "Front Camera Module" is indicated on the "Communication Bus Check" screen of the Techstream.
Click here
Communication sys
Sensor Frozen Indication (Dirty or Frozen)
DESCRIPTION When the ultrasonic sensor is dirty or frozen, "Parking Assist Unavailable Clean Parking Assist Sensor" is displayed on the multi-information display in the combination meter assembly. PROCEDURE 1. CHECK FOR DTC (a) Clear the DTCs. Click here Body Electrical > Advanced Park
