Use the following procedure to troubleshoot the power door lock control 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, 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 engine has started |
| How did it happen? | Problem symptoms |
| Proceed to |
|---|
| NEXT |
NEXT
If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before operation history has been read out and saved, the operation history information could be lost.
The function "Read operation 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 operation history. For this reason, before reading out the operation history, first make sure that the GTS system clock is accurately set to the current time.
Read and save operation history using the GTS.
| Tester Display |
|---|
| Operation History |
| Proceed to |
|---|
| NEXT |
NEXT
Measure the battery voltage.
11 to 14 V
If the voltage is below 11 V, recharge or replace the 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.
| Result | Proceed to |
|---|---|
| CAN DTCs are not output | A |
| CAN DTCs are output | B |
A
B
Using the GTS, check for LIN communication system DTCs.
| Result | Proceed to |
|---|---|
| LIN DTCs are not output | A |
| LIN DTCs are output | B |
A
B
Clear the DTCs.
Recheck for DTCs.
| Result | Proceed to |
|---|---|
| DTC B2312 is not output (w/ Entry and Start System) | A |
| DTC B2312 is not output (w/o Entry and Start System) | B |
| DTC B2312 is output | C |
A
B
C
Clear the DTCs.
Recheck for DTCs.
| Result | Proceed to |
|---|---|
| DTC B1243 is not output | A |
| DTC B1243 is output | B |
A
B
| Result | Proceed to |
|---|---|
| Fault is not listed in Problem Symptoms Table (Fault can be simulated) | A |
| Fault is not listed in Problem Symptoms Table (Fault can not be simulated) | B |
| Fault is listed in Problem Symptoms Table | C |
A
B
C
Data List / Active Test
Inspection
| Proceed to |
|---|
| NEXT |
NEXT
| Proceed to |
|---|
| NEXT |
NEXT
| Proceed to |
|---|
| NEXT |
NEXT