Lexus NX: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
-
Before troubleshooting the front camera system, first refer to How to Proceed with Troubleshooting for the pre-collision system.
Click here
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-
If a message is displayed on the multi-information display, refer to How to Proceed with Troubleshooting for the pre-collision system.
Click here
- Use these procedures to troubleshoot the front camera 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
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.
Click here
OK:
CAN communication system is functioning normally.
| NG | .gif) | GO TO CAN COMMUNICATION SYSTEM |
|
| 4. | CHECK FOR DTC* |
(a) Check for DTCs.
Click here
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTC C1A4A12 is output | B |
| DTC C1AA800 is output | C |
| DTC other than C1A4A12 and C1AA800 is output | D |
| B | | GO TO DTC CHART (C1A4A12) |
| C | | GO TO DTC CHART (C1AA800) |
| D | | GO TO STEP 7 |
|
| 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) |
(1) Record the vehicle control history.
| Result | Proceed to |
|---|---|
| Vehicle control history is not output | A |
| Vehicle control history other than X2015 and X201C is output | |
| X2015 or X201C is output | B |
| B | | GO TO VEHICLE CONTROL HISTORY |
|
| 6. | CHECK FOR VEHICLE CONTROL HISTORY* |
(a) Clear the vehicle control history.
Click here
| Tester Display |
|---|
| Vehicle Control History (RoB) |
(b) Recheck for vehicle control history.
(1) Check if the following vehicle control history is 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 |
| 7. | CHECK FOR DTC* |
(a) Clear the DTCs.
Click here
(b) Reproduce the detection conditions of the recorded DTC.
HINT:
Refer to the flowchart for the detection conditions for each of the DTCs.
Click here
(c) Recheck for DTCs.
(1) Attempt to duplicate the malfunction and check if the DTCs are output again.
Click here
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTC is output | B |
| A | | GO TO STEP 5 |
| B | | GO TO DIAGNOSTIC TROUBLE CODE CHART |
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