Use the following procedure to troubleshoot the acoustic vehicle alerting system.
*: Use the GTS.
| Proceed to |
|---|
| 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 power 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.
| Proceed to |
|---|
| NEXT |
NEXT
Using the GTS, check for CAN communication system DTCs.
for SFTM Made : Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for SFTM Made HV Model)>DIAGNOSIS SYSTEM202405,999999,_57,_083091,_0694853,RM100000002LUHO,
for GTMC Made: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for GTMC Made HV Model)>DIAGNOSIS SYSTEM202405,999999,_57,_083091,_0694855,RM100000002LVP2,
| Result | Proceed to |
|---|---|
| CAN DTCs are not output | A |
| CAN DTCs are output | B |
A
B
for SFTM Made: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for SFTM Made HV Model)>HOW TO PROCEED WITH TROUBLESHOOTING202409,999999,_57,_083091,_0694853,RM100000002NT0M,
for GTMC Made: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for GTMC Made HV Model)>HOW TO PROCEED WITH TROUBLESHOOTING202409,999999,_57,_083091,_0694855,RM100000002NTBR,
Check for DTCs.
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTCs are output | B |
A
B
Refer to Problem Symptoms Table.
| Result | Proceed to |
|---|---|
| Fault is not listed in Problem Symptoms Table | A |
| Fault is listed in Problem Symptoms Table | B |
A
B
Inspection
| Proceed to |
|---|
| NEXT |
NEXT
| Proceed to |
|---|
| NEXT |
NEXT
| Proceed to |
|---|
| NEXT |
NEXT