Use the following procedure to troubleshoot the power door lock control system.
*: Use the GTS.
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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, whether the problem occurred recently or has been occurring for a long time |
| Where | Whether the problem occurs at a specific location |
| Under what conditions? | Whether the doors were locked or unlocked, whether the ignition switch was ON, whether the hybrid control system (for HV Model) or engine (for Gasoline Model) has started |
| How did it happen? | Problem symptoms |
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If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before vehicle control history has been read out and saved, the vehicle control history information could be lost.
The function "Read vehicle control history" uses the current system time setting inside the GTS and the time counter inside the controlling ECU to calculate the timings shown in the vehicle control history. For this reason, before reading out the vehicle control history, first make sure that the GTS system clock is accurately set to the current time.
Read and save vehicle control history using the GTS.
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| Vehicle Control History (RoB) |
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Measure the auxiliary battery voltage.
11 to 14 V (ignition switch off)
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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Using the GTS, check for CAN communication system DTCs.
for GTMC Made HV Model:
for GTMC Made Gasoline Model:
for SFTM Made HV Model:
for SFTM Made Gasoline Model:
| Result | Proceed to |
|---|---|
| CAN DTCs are not output | A |
| CAN DTCs are output | B |
A
B
for GTMC Made HV Model:
for GTMC Made Gasoline Model:
for SFTM Made HV Model:
for SFTM Made Gasoline Model:
Using the GTS, check for LIN communication system DTCs.
for GTMC Made:
for SFTM Made:
| Result | Proceed to |
|---|---|
| LIN DTCs are not output | A |
| LIN DTCs are output | B |
A
B
for GTMC Made:
for SFTM Made:
Clear the DTCs.
Recheck for DTCs.
| Result | Proceed to |
|---|---|
| DTC B2312 is not output | A |
| DTC B2312 is output | B |
A
B
Clear the DTCs.
Recheck for DTCs.
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| DTC B124300 is not output | A |
| DTC B124300 is output | B |
A
B
Refer to Problem Symptoms Table.
| Result | Proceed to |
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| Fault is not listed in Problem Symptoms Table (Fault can be simulated) | A |
| Fault is not listed in Problem Symptoms Table (Fault cannot be simulated) | B |
| Fault is listed in Problem Symptoms Table | C |
A
B
C
Data List / Active Test
Inspection
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