Before performing troubleshooting for the front camera system, perform troubleshooting for the pre-collision system.
If a pre-collision system related warning message is displayed on the multi-information display, refer to How to Proceed with Troubleshooting for pre-collision system.
Use the following procedure to troubleshoot the front camera 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 |
| Proceed to |
|---|
| 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.
While using the parts location and circuit diagrams as a reference, inspect areas which can be visually inspected for blown fuses, problems with wire harnesses (open and short circuits), improperly connected connectors, 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
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Using the GTS, check for DTCs.
If a DTC is output, record the DTC.
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTC C1AA800 is output | B |
| DTC other than C1AA800 is output | C |
A
B
C
Using the GTS, clear the DTCs.
Reproduce the vehicle conditions that were present when the DTCs that were noted were stored.
Refer to each corresponding DTC for details on the detection conditions.
Using the GTS, check for DTCs.
| 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) |
Make a note of the output Vehicle Control History (RoB).
| Result | Proceed to |
|---|---|
| Vehicle Control History (RoB) is not output | A |
| Vehicle Control History (RoB) other than X2015 and X201C is output | B |
| Vehicle Control History (RoB) X2015 or X201C is output | C |
A
B
C
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