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 engine 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.
| Tester Display |
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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 Gasoline Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model (except NR Series))>DIAGNOSIS SYSTEM202304,999999,_57,_080743,_0598531,RM100000002BFVC,
for HV Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for HV Model)>DIAGNOSIS SYSTEM202304,202307,_57,_080743,_0392424,RM100000002B9SB,202307,999999,_57,_080743,_0392424,RM100000002CP2C,
| Result | Proceed to |
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| 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 (except NR Series))>HOW TO PROCEED WITH TROUBLESHOOTING202304,999999,_57,_080743,_0598531,RM100000002BFV9,
for HV Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for HV Model)>HOW TO PROCEED WITH TROUBLESHOOTING202304,999999,_57,_080743,_0392424,RM100000002BB1R,
Using the GTS, check for LIN communication system DTCs.
| Result | Proceed to |
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| LIN DTCs are not output | A |
| LIN DTCs are output | B |
A
B
Clear the DTCs.
Recheck for DTCs.
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| DTC B2312 is not output | A |
| DTC B2312 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 can not be simulated) | B |
| Fault is listed in Problem Symptoms Table | C |
A
B
C
Inspection
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