Lexus NX: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use these procedures to troubleshoot the lane tracing assist 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 (Power switch off)
If the voltage is below 11 V, replace or recharge the auxiliary battery before proceeding to the next step.
|
| 3. | CHECK CAN COMMUNICATION SYSTEM* |
(a) Using the Techstream, check if the CAN communication system is functioning normally.
HINT:
Refer to CAN Bus Check in CAN Communication System.
Click here .gif)
OK:
CAN communication system is functioning normally.
| NG | .gif) | GO TO CAN COMMUNICATION SYSTEM |
|
| 4. | CHECK FOR DTC* |
HINT:
Refer to DTC Check / Clear.
Click here
(a) Clear the DTCs.
Chassis > Lane Control > Clear DTCs(b) Reproduce the detection conditions of the recorded DTC.
Chassis > Lane Control > Trouble Codes(c) Attempt to duplicate the malfunction and check if the DTCs are output again.
Chassis > Lane Control > Trouble Codes| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTCs are output | B |
| B | | GO TO STEP 6 |
|
| 5. | CHECK FOR VEHICLE CONTROL HISTORY* |
(a) Check for vehicle control history and note any codes that are output.
Click here
| Tester Display |
|---|
| Vehicle Control History (RoB) |
| Result | Proceed to |
|---|---|
| Vehicle control history is not output | A |
| Vehicle control history is output | B |
| A | | USE SIMULATION METHOD TO CHECK |
| B | | GO TO STEP 7 |
| 6. | CHECK FOR DTC* |
HINT:
Refer to DTC Check / Clear.
Click here
(a) Check for DTCs and note any codes that are output.
Chassis > Lane Control > Trouble Codes(b) Clear the DTCs.
Chassis > Lane Control > Clear DTCs(c) Recheck for DTCs. Try to reproduce the DTCs by duplicating the conditions indicated by the DTCs.
Chassis > Lane Control > Trouble Codes| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTCs are output | B |
| B | | GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
| 7. | CHECK FOR VEHICLE CONTROL HISTORY* |
(a) Check for vehicle control history and note any codes that are output.
Click here
| Tester Display |
|---|
| Vehicle Control History (RoB) |
| Result | Proceed to |
|---|---|
| Vehicle control history is not output | A |
| Vehicle control history is output | B |
| A | | USE SIMULATION METHOD TO CHECK |
| B | | GO TO VEHICLE CONTROL HISTORY |
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