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.
|
| 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 |
|
| 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 |
READ NEXT:
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 Airbag Sensor Lost Communication (RH) (B1612,B1613)
DESCRIPTION The front airbag sensor RH circuit consists of the airbag ECU assembly and front airbag sensor RH. The front airbag sensor RH detects impacts to the vehicle and sends signals to the airbag ECU assembly to determine if the airbag should be deployed. DTC B1612 or B1613 is stored when a mal
Power Steering Warning Light Circuit
DESCRIPTION The power steering ECU is connected to the combination meter via CAN communication. If any of the following conditions are detected, the power steering warning light remains on.
The circuit that supplies power source voltage to the power steering ECU assembly (terminal IG) is open.
