If the Main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin (w/ Smart Entry and Start System).
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | Link |
|---|---|---|
| All doors lock/unlock functions do not operate via door key cylinder. | Main body ECU (multiplex network body ECU) | 202409,999999,_58,_083092,_0403003,RM100000002NS98,
|
| Front door with motor lock assembly LH | ||
| Harness or connector | ||
| All doors lock/unlock functions do not operate via master switch. | Main body ECU (multiplex network body ECU) | 202409,999999,_58,_083092,_0403003,RM100000002NS99,
|
| Multiplex network master switch assembly | ||
| All doors lock function do not operate via door control switch and door key cylinder. | Power distribution box assembly | 202409,999999,_57,_083090,_0403094,RM100000002NG0W,
|
| Main body ECU (multiplex network body ECU) | 202409,999999,_57,_083090,_0403094,RM100000002NG0W,
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| All doors unlock function do not operate via door control switch and door key cylinder. | Power distribution box assembly | 202409,999999,_57,_083090,_0403094,RM100000002NG0W,
|
| Main body ECU (multiplex network body ECU) | 202409,999999,_57,_083090,_0403094,RM100000002NG0W,
|
|
| Only driver door lock/unlock functions do not operate. | Front door with motor lock assembly LH | 202304,999999,_58,_083092,_0403680,RM1000000029P8I,
|
| Harness or connector | - | |
| Power distribution box assembly | 202409,999999,_57,_083090,_0403094,RM100000002NG0W,
|
|
| Only driver door unlock function does not operate (lock function operates). | Front door with motor lock assembly LH | 202304,999999,_58,_083092,_0403680,RM1000000029P8I,
|
| Harness or connector | - | |
| Main body ECU (multiplex network body ECU) | 202409,999999,_57,_083090,_0403094,RM100000002NG0W,
|
|
| Power distribution box assembly | 202409,999999,_57,_083090,_0403094,RM100000002NG0W,
|
|
| Only front passenger door lock/unlock functions do not operate. | Front door with motor lock assembly RH | 202304,999999,_58,_083092,_0403680,RM1000000029P8I,
|
| Harness or connector | - | |
| Only rear door LH lock/unlock functions do not operate. | Rear door lock with motor assembly LH | 201910,999999,_58,_083092,_0403681,RM100000001JUEZ,
|
| Harness or connector | - | |
| Power distribution box assembly | 202409,999999,_57,_083090,_0403094,RM100000002NG0W,
|
|
| Only rear door RH lock/unlock functions do not operate. | Rear door lock with motor assembly RH | 201910,999999,_58,_083092,_0403681,RM100000001JUEZ,
|
| Harness or connector | - | |
| Speed-sensitive automatic door lock function does not operate (meter/gauge system operates normally). | CAN communication system *4 | 202409,999999,_57,_083091,_0694855,RM100000002NTBR,
|
| CAN communication system *5 | 202409,999999,_57,_083091,_0694856,RM100000002NTA4,
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| CAN communication system *8 | 202409,999999,_57,_083091,_0694853,RM100000002NT0M,
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| CAN communication system *9 | 202409,999999,_57,_083091,_0694854,RM100000002NUBH,
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|
| Main body ECU (multiplex network body ECU) | 202409,999999,_57,_083090,_0403094,RM100000002NG0W,
|
|
| Shift-linked automatic door lock/unlock functions do not operate (hybrid transaxle system*4 or CVT*5 operates normally). | CAN communication system *4 | 202409,999999,_57,_083091,_0694855,RM100000002NTBR,
|
| CAN communication system *5 | 202409,999999,_57,_083091,_0694856,RM100000002NTA4,
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| CAN communication system *8 | 202409,999999,_57,_083091,_0694853,RM100000002NT0M,
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| CAN communication system *9 | 202409,999999,_57,_083091,_0694854,RM100000002NUBH,
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|
| Main body ECU (multiplex network body ECU) | 202409,999999,_57,_083090,_0403094,RM100000002NG0W,
|
|
| Hybrid vehicle control ECU *4, *8 | 202409,999999,_51,_083048,_0400692,RM100000002NNM9,
|
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| ECM (for M20C-FKS)*5, *9 | 202405,999999,_51,_087036,_0418140,RM100000002JM0N,
|
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| ECM (for M20D-FKS)*5, *9 | 202409,999999,_51,_083058,_0401822,RM100000002NRO9,
|
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| Key lock-in prevention function does not operate. | Front door courtesy light switch assembly LH | 202409,999999,_58,_083095,_0400584,RM100000002NSNO,
|
| Front door courtesy light switch assembly RH | 202409,999999,_58,_083095,_0400584,RM100000002NSNO,
|
|
| Rear door courtesy light switch assembly LH | 202409,999999,_58,_083095,_0400584,RM100000002NSNO,
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| Rear door courtesy light switch assembly RH | 202409,999999,_58,_083095,_0400584,RM100000002NSNO,
|
|
| Front door with motor lock assembly LH | 202304,999999,_58,_083092,_0403680,RM1000000029P8I,
|
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| Front door with motor lock assembly RH | 202304,999999,_58,_083092,_0403680,RM1000000029P8I,
|
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| Rear door lock with motor assembly LH | 201910,999999,_58,_083092,_0403681,RM100000001JUEZ,
|
|
| Rear door lock with motor assembly RH | 201910,999999,_58,_083092,_0403681,RM100000001JUEZ,
|
|
| Main body ECU (multiplex network body ECU) | 202409,999999,_57,_083090,_0403094,RM100000002NG0W,
|
|
| Power distribution box assembly | 202409,999999,_57,_083090,_0403094,RM100000002NG0W,
|
|
| Only back door open function does not operate.*1 | Power back door system | 202409,999999,_59,_083093,_0584672,RM100000002NT0T,
|
| Only back door open function does not operate.*2 | Smart entry and start system (for Entry Function)*6 | 202409,999999,_58,_083092,_0403003,RM100000002NS9A,
|
| Back door opener switch assembly | ||
| Back door lock with courtesy light switch assembly | ||
| Harness or connector | ||
| Power distribution box assembly | ||
| Main body ECU (multiplex network body ECU) | ||
| Lock operation continues even after doors have been locked.*3 | Front door with motor lock assembly LH | 202304,999999,_58,_083092,_0403680,RM1000000029P8I,
|
| Front door with motor lock assembly RH | 202304,999999,_58,_083092,_0403680,RM1000000029P8I,
|
|
| Rear door lock with motor assembly LH | 201910,999999,_58,_083092,_0403681,RM100000001JUEZ,
|
|
| Rear door lock with motor assembly RH | 201910,999999,_58,_083092,_0403681,RM100000001JUEZ,
|
|
| Harness or connector | - | |
| Main body ECU (multiplex network body ECU) | 202409,999999,_57,_083090,_0403094,RM100000002NG0W,
|
|
| Power distribution box assembly | 202409,999999,_57,_083090,_0403094,RM100000002NG0W,
|
|
| Only remote door LOCK/UNLOCK functions do not operate (power door lock operation is normal). | Telematics system | 202405,999999,_56,_083087,_0402655,RM100000002LW9U,
|
| All doors lock/unlock functions do not operate via door key cylinder*7 | Door control battery | 202409,999999,_58,_083092,_0403003,RM100000002NS9B,
|
| Harness or connector | ||
| Main body ECU (multiplex network body ECU) | ||
| Power distribution box assembly |
*1: w/ Power Back Door System
*2: w/o Power Back Door System
*3: When the door unlock detection switch detects an unlock position signal after a door lock operation has been performed, a door lock operation will be performed 2 times.
*4: for GTMC Made HV Model
*5: for GTMC Made Gasoline Model
*6: w/ Smart Entry and Start System
*7: w/ Door Control Battery
*8: for SFTM Made HV Model
*9: for SFTM Made Gasoline Model