Before replacing the main body ECU (multiplex network body ECU) or certification ECU (smart key ECU assembly), 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 |
|---|---|---|
| Map light LH or map light RH does not illuminate (Other interior lights are normal) | Bulb* | 201906,999999,_58,_080785,_0393088,RM100000001HVEF,
|
| Map light assembly | 202205,999999,_58,_080785,_0393087,RM1000000022IHS,
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| Map light LH and map light RH do not illuminate (Other interior lights are normal) | Interior light circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB74,
|
*: for Bulb Type
| Symptom | Suspected Area | Link |
|---|---|---|
| Rear room light does not illuminate (Other interior lights are normal)*1 | Bulb | 201906,999999,_58,_080785,_0393090,RM100000001HVEK,
|
| Interior light circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB74,
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| Room light LH or room light RH does not illuminate (Other interior lights are normal)*2 | Bulb*3 | 201906,999999,_58,_080785,_0393090,RM100000001HVEK,
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| Room light assembly | 202304,999999,_58,_080785,_0393089,RM100000002AUFK,
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| Room light LH and room light RH do not illuminate (Other interior lights are normal)*2 | Interior light circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB74,
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*1: w/ Room Light (for Slide Switch Type)
*2: w/ Room Light (for Push Switch Type)
*3: for Bulb Type
| Symptom | Suspected Area | Link |
|---|---|---|
| Luggage compartment light does not illuminate (Other interior lights are normal) | Bulb | 201906,999999,_58,_080785,_0393092,RM100000001HVEP,
|
| No. 1 luggage compartment light assembly | 202304,999999,_58,_080785,_0393091,RM100000002B0VC,
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| Luggage compartment door courtesy switch circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB79,
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| Harness or connector | - | |
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Center tray illumination light does not illuminate*1 | Ambient illumination light circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB76,
|
| Cup holder light does not illuminate*2 | Ambient illumination light circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB76,
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| Footwell light LH does not illuminate*3 | Ambient illumination light circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB76,
|
| Footwell light RH does not illuminate*3 | Ambient illumination light circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB76,
|
| Center tray illumination light*1, cup holder light*2, footwell light LH*3 and footwell light RH*3 do not illuminate | Ambient illumination light circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB76,
|
*1: w/ Center Tray Light
*2: w/ Cup Holder Light
*3: w/ Footwell Light
| Symptom | Suspected Area | Link |
|---|---|---|
| All the interior lights that receive power via the DOME CUT relay do not illuminate | Interior light auto cut circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB75,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| All illuminated entry system control functions do not operate under any condition | Interior light auto cut circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB75,
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
|
| Actuation area-linked control function does not operate when registered key is brought into any exterior detection area*1 | CAN communication system | 202304,999999,_57,_080743,_0598517,RM100000002B6UW,
|
| Smart entry and start system (for Entry Function) | 202304,999999,_58,_080747,_0586389,RM1000000029OI0,
|
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
|
| Door lock/unlock-linked control function does not operate when doors are locked/unlocked | Check customize settings (I/L ON W/Door Key Unlock) | 202304,999999,_58,_080785,_0600096,RM100000002BB6V,
|
| Door unlock detection switch circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB78,
|
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
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| Door open/close-linked control function does not operate when doors are opened/closed | Front door courtesy switch circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB72,
|
| Rear door courtesy switch circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB73,
|
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
|
| Engine switch-linked control function does not operate when engine switch is operated*1 | Check customize settings (I/L when ACC OFF) | 202304,999999,_58,_080785,_0600096,RM100000002BB6V,
|
| IG signal circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB70,
|
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| ACC signal circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB71,
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|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
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| Engine switch illumination does not illuminate*1 | CAN communication system | 202304,999999,_57,_080743,_0598517,RM100000002B6UW,
|
| Engine switch illumination circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB77,
|
|
| Ignition switch-linked control function does not operate when ignition switch is operated*2 | Check customize settings (I/L when ACC OFF) | 202304,999999,_58,_080785,_0600096,RM100000002BB6V,
|
| IG signal circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB70,
|
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| ACC signal circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB71,
|
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
*1: w/ Entry Function
*2: w/o Smart Entry and Start System
| Symptom | Suspected Area | Link |
|---|---|---|
| Battery saving function does not operate | Check illuminated entry system | 202304,999999,_58,_080785,_0600096,RM100000002BB6U,
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
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