Lexus NX: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use these procedures to troubleshoot the airbag system.
- *: Use the Techstream.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
|
.gif)
| 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.
|
| 3. | CHECK CAN COMMUNICATION SYSTEM* |
(a) Check for DTCs.
Click here .gif)
| DTC is output | .gif) | GO TO CAN COMMUNICATION SYSTEM |
|
| 4. | SRS WARNING LIGHT CHECK |
|
| 5. | CHECK DTC (Present and Past DTCs)* |
(a) Check for DTCs.
Click here
| DTC is not output | | GO TO PROBLEM SYMPTOMS TABLE |
|
| 6. | DIAGNOSTIC TROUBLE CODE CHART |
(a) Diagnostic Trouble Code Chart.
Click here
|
| 7. | CIRCUIT INSPECTION* |
|
| 8. | REPAIR |
|
| 9. | CLEAR DTC (Present and Past DTCs)* |
(a) Clear the DTCs.
Click here
|
| 10. | CHECK DTC (Present and Past DTCs)* |
(a) Check for DTCs.
Click here
| DTC is output | | GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
| 11. | CONFIRMATION TEST |
| NEXT | | END |
READ NEXT:
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 pr
Terminals Of Ecu
TERMINALS OF ECU AIRBAG ECU ASSEMBLY Terminal No. Terminal Symbol Destination I58-1 P2+ Instrument panel passenger airbag assembly (Front passenger side squib 2nd step) I58-2 P2-
Diagnosis System
DIAGNOSIS SYSTEM SYMPTOM SIMULATION HINT: The most difficult case in troubleshooting is when no problem symptoms occur. In such a case, a thorough problem analysis must be carried out. A simulation of
SEE MORE:
Invalid Data Received from Brake System Control Module Invalid Serial Data Received (U041881)
DESCRIPTION
The forward recognition camera receives signals from the skid control ECU (brake booster with master cylinder assembly) corresponding to the brake control status via the CAN communication line.
When a brake control system malfunction signal is received from the skid control ECU (bra
DC / DC Converter Temperature Sensor "A" Range / Performance (P0C39-626,P0C3C-625)
DTC SUMMARY MALFUNCTION DESCRIPTION These DTCs indicate the boost converter temperature sensor (upper) value is abnormal. The cause of this malfunction may be one of the following: Internal inverter malfunction
Inverter with converter assembly internal circuit malfunction
Hybrid cooling syste
