Use the following procedure to troubleshoot the lane tracing assist system.
*: Use the GTS.
| Proceed to |
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| NEXT |
NEXT
In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
The following 5 items are important points for problem analysis:
| What | Vehicle model, system name |
| When | Date, time, occurrence frequency |
| Where | Road conditions |
| Under what conditions? | Driving conditions, weather conditions |
| How did it happen? | Problem symptoms |
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| NEXT |
NEXT
Measure the auxiliary battery voltage with the ignition switch off.
11 to 14 V
If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.
Check the fuses and relays.
Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.
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| NEXT |
NEXT
Using the GTS, check for CAN communication system DTCs.
| Result | Proceed to |
|---|---|
| CAN DTCs are not output | A |
| CAN DTCs are output | B |
A
B
for Gasoline Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING202111,202203,_57,_111829,_0499998,RM100000001Z134,202203,202303,_57,_111829,_0499998,RM100000002205J,202303,999999,_57,_111829,_0499998,RM10000000291N8,
Using the GTS, check for DTCs.
If a DTC is output, record the DTC.
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTCs are output | B |
A
B
Using the GTS, check for Vehicle Control History (RoB).
| Tester Display |
|---|
| Vehicle Control History (RoB) |
If the Vehicle Control History (RoB) is output, record it.
| Result | Proceed to |
|---|---|
| Vehicle Control History (RoB) is not output | A |
| Vehicle Control History (RoB) is output | B |
A
B
Using the GTS, clear the DTCs.
Reproduce the detection conditions of the recorded DTC.
Refer to the flowchart of each diagnosis code for the diagnosis code detection condition.
Using the GTS, check if the DTCs are output again.
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTCs are output | B |
A
B
Using the GTS, clear the Vehicle Control History (RoB).
| Tester Display |
|---|
| Vehicle Control History (RoB) |
Using the GTS, check for Vehicle Control History (RoB).
| Tester Display |
|---|
| Vehicle Control History (RoB) |
| Result | Proceed to |
|---|---|
| Vehicle Control History (RoB) is not output | A |
| Vehicle Control History (RoB) is output | B |
A
B