Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.
When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
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.
| Symptom | Suspected Area | Link |
|---|---|---|
| Left low beam headlight does not illuminate | Refer to "LO-beam Headlight does not Illuminate" | 202307,999999,_59,_080784,_0600055,RM100000002D7DQ,
|
| Right low beam headlight does not illuminate | Refer to "LO-beam Headlight does not Illuminate" | 202307,999999,_59,_080784,_0600055,RM100000002D7DQ,
|
| Both left and right low beam headlights do not illuminate | Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
|
| Left high beam headlight does not illuminate | Headlight assembly LH | 202307,999999,_59,_080784,_0393155,RM100000002D3IT,
|
| Harness or connector | - | |
| Right high beam headlight does not illuminate | Headlight assembly RH | 202307,999999,_59,_080784,_0393155,RM100000002D3IT,
|
| Harness or connector | - | |
| Both left and right high beam headlights do not illuminate | Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
| High beam headlight circuit | 202307,999999,_59,_080784,_0600055,RM100000002D7DR,
|
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
|
| High Flash (passing function) does not operate (high beam headlights are normal) | Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Left low beam headlight does not illuminate | Refer to "LO-beam Headlight does not Illuminate" | 202307,999999,_59,_080784,_0600055,RM100000002D7DQ,
|
| Right low beam headlight does not illuminate | Refer to "LO-beam Headlight does not Illuminate" | 202307,999999,_59,_080784,_0600055,RM100000002D7DQ,
|
| Both left and right low beam headlights do not illuminate | Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
|
| Left high beam headlight does not illuminate | Headlight assembly LH | 202304,999999,_59,_080784,_0393156,RM100000002B29P,
|
| Harness or connector | - | |
| Right high beam headlight does not illuminate | Headlight assembly RH | 202304,999999,_59,_080784,_0393156,RM100000002B29P,
|
| Harness or connector | - | |
| Both left and right high beam headlights do not illuminate | Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
| High beam headlight circuit | 202307,999999,_59,_080784,_0600055,RM100000002D7DR,
|
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
|
| High Flash (passing function) does not operate (high beam headlights are normal) | Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Left clearance light does not illuminate | Headlight assembly LH | 202307,999999,_59,_080784,_0393155,RM100000002D3IT,
|
| Harness or connector | - | |
| Right clearance light does not illuminate | Headlight assembly RH | 202307,999999,_59,_080784,_0393155,RM100000002D3IT,
|
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left clearance light does not illuminate | Headlight assembly LH | 202304,999999,_59,_080784,_0393156,RM100000002B29P,
|
| Harness or connector | - | |
| Right clearance light does not illuminate | Headlight assembly RH | 202304,999999,_59,_080784,_0393156,RM100000002B29P,
|
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right taillight (rear combination light assembly) does not illuminate | Rear combination light assembly | 202304,999999,_59,_080784,_0393161,RM100000002B2B5,
|
| Rear combination light socket and wire | 202304,999999,_59,_080784,_0393161,RM100000002B2B4,
|
|
| Harness or connector | - | |
| Left or right taillight (rear light assembly) does not illuminate | Rear light assembly | 202304,999999,_59,_080784,_0393163,RM100000002B2C8,
|
| Harness or connector | - | |
| All of the taillights, clearance lights and license plate lights do not illuminate | Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
| Taillight relay circuit | 202304,999999,_59,_080784,_0600055,RM100000002BAXP,
|
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right taillight (rear combination light assembly) does not illuminate | Rear combination light assembly | 201906,999999,_59,_080784,_0393160,RM100000001HW56,
|
| Rear combination light socket and wire | 202304,999999,_59,_080784,_0393160,RM100000002B2BK,
|
|
| Harness or connector | - | |
| All of the taillights, clearance lights and license plate lights do not illuminate | Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
| Taillight relay circuit | 202304,999999,_59,_080784,_0600055,RM100000002BAXP,
|
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right license plate light does not illuminate | License plate light bulb | 202307,999999,_59,_080794,_0393000,RM100000002CHSX,
|
| Harness or connector | - | |
| License plate light assembly | 201906,999999,_59,_080784,_0393166,RM100000001HW5U,
|
|
| Both left and right license plate lights do not illuminate | Taillight relay circuit | 202304,999999,_59,_080784,_0600055,RM100000002BAXP,
|
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right stop light does not illuminate | Rear combination light assembly | 202304,999999,_59,_080784,_0393161,RM100000002B2B5,
|
| Rear combination light socket and wire | 202304,999999,_59,_080784,_0393161,RM100000002B2B4,
|
|
| Harness or connector | - | |
| All of the stop lights do not illuminate | STOP fuse | - |
| Stop light switch assembly | 201906,999999,_59,_080784,_0393172,RM100000001HW6F,
|
|
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right stop light does not illuminate | Rear combination light assembly | 201906,999999,_59,_080784,_0393160,RM100000001HW56,
|
| Rear combination light socket and wire | 202304,999999,_59,_080784,_0393160,RM100000002B2BK,
|
|
| Harness or connector | - | |
| All of the stop lights do not illuminate | STOP fuse | - |
| Stop light switch assembly | 201906,999999,_59,_080784,_0393172,RM100000001HW6F,
|
|
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| High mounted stop light does not illuminate | Center stop light set | 201906,999999,_59,_080784,_0393168,RM100000001HW60,
|
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right front fog light does not illuminate | Fog light assembly | 201906,999999,_59,_080784,_0393157,RM100000001HW4V,
|
| Harness or connector | - | |
| Both left and right front fog lights do not illuminate (taillights are normal) | Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
| Front fog light circuit | 202304,999999,_59,_080784,_0600055,RM100000002BAXK,
|
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Rear fog light does not illuminate | Rear light assembly | 202304,999999,_59,_080784,_0393163,RM100000002B2C8,
|
| Rear fog light LED | 202304,999999,_59,_080784,_0393163,RM100000002B2C7,
|
|
| Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
|
| Rear fog light circuit | 202304,999999,_59,_080784,_0600055,RM100000002BAXL,
|
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Rear fog light does not illuminate | Rear light assembly | 202304,999999,_59,_080784,_0393162,RM100000002B2CE,
|
| Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
|
| Rear fog light circuit | 202304,999999,_59,_080784,_0600055,RM100000002BAXL,
|
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Back-up light does not illuminate | Rear light assembly | 202304,999999,_59,_080784,_0393163,RM100000002B2C8,
|
| Back-up light LED | 202304,999999,_59,_080784,_0393163,RM100000002B2C7,
|
|
| BKUP LP fuse | - | |
| Park/neutral position switch assembly | 201906,999999,_52,_080728,_0392272,RM100000001HPB4,
|
|
| Driver side junction block assembly | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
|
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Back-up light does not illuminate | Back-up light bulb | 201906,999999,_59,_080784,_0393165,RM100000001HW5R,
|
| BKUP LP fuse | - | |
| Park/neutral position switch assembly | 201906,999999,_52,_080728,_0392272,RM100000001HPB4,
|
|
| Driver side junction block assembly | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
|
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right front turn signal light does not operate | Front turn signal light bulb | 201906,999999,_59,_080784,_0393158,RM100000001HW4Y,
|
| Harness or connector | - | |
| Left or right side turn signal light does not operate | Side turn signal light assembly | 201906,999999,_59,_080784,_0393159,RM100000001HW4Z,
|
| Outer rear view mirror assembly | 202307,999999,_59,_080794,_0393000,RM100000002CHSX,
|
|
| Harness or connector | - | |
| Left or right rear turn signal light does not operate | Rear turn signal light bulb | 201906,999999,_59,_080784,_0393164,RM100000001HW5Q,
|
| Rear combination light socket and wire | 202304,999999,_59,_080784,_0393163,RM100000002B2C7,
|
|
| Harness or connector | - | |
| Turn signal lights do not operate in one direction | Turn signal switch circuit | 202304,999999,_59,_080784,_0600055,RM100000002BAXH,
|
| Meter/gauge system | 202304,999999,_58,_080793,_0598151,RM100000002B2XD,
|
|
| All turn signal lights do not operate | Turn signal switch circuit | 202304,999999,_59,_080784,_0600055,RM100000002BAXH,
|
| Combination meter assembly | 202304,999999,_58,_080793,_0393111,RM100000002AUPM,
|
|
| All turn signal lights do not flash at the correct speed | Combination meter assembly | 202304,999999,_58,_080793,_0393111,RM100000002AUPM,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right front turn signal light does not operate | Headlight assembly | 202304,999999,_59,_080784,_0393156,RM100000002B29P,
|
| Harness or connector | - | |
| Left or right side turn signal light does not operate | Side turn signal light assembly | 201906,999999,_59,_080784,_0393159,RM100000001HW4Z,
|
| Outer rear view mirror assembly | 201906,999999,_59,_080784,_0393167,RM100000001HW5W,
|
|
| Harness or connector | - | |
| Left or right rear turn signal light does not operate | Rear turn signal light bulb | 201906,999999,_59,_080784,_0393164,RM100000001HW5Q,
|
| Rear combination light socket and wire | 202304,999999,_59,_080784,_0393160,RM100000002B2BK,
|
|
| Harness or connector | - | |
| Turn signal lights do not operate in one direction | Turn signal switch circuit | 202304,999999,_59,_080784,_0600055,RM100000002BAXH,
|
| Meter/gauge system | 202304,999999,_58,_080793,_0598151,RM100000002B2XD,
|
|
| All turn signal lights do not operate | Turn signal switch circuit | 202304,999999,_59,_080784,_0600055,RM100000002BAXH,
|
| Combination meter assembly | 202307,999999,_59,_080784,_0600055,RM100000002D7DN,
|
|
| All turn signal lights do not flash at the correct speed | Combination meter assembly | 202304,999999,_58,_080793,_0393111,RM100000002AUPM,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Hazard warning signal lights do not operate | Hazard warning switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXN,202502,999999,_59,_080784,_0600055,RM100000002RCS3,
|
| Combination meter assembly | 202304,999999,_58,_080793,_0393111,RM100000002AUPM,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Automatic light control system does not operate | Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Light auto turn-off system does not operate | Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
| IG signal circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB70,
|
|
| Front door courtesy switch circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB72,
|
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Left daytime running light does not illuminate | Headlight assembly LH | 202307,999999,_59,_080784,_0393155,RM100000002D3IT,
|
| Harness or connector | - | |
| Right daytime running light does not illuminate | Headlight assembly RH | 202307,999999,_59,_080784,_0393155,RM100000002D3IT,
|
| Harness or connector | - | |
| Both left and right daytime running lights do not illuminate | Daytime running light circuit | 202304,999999,_58,_080793,_0393111,RM100000002AUPM,
|
| Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
|
| IG signal circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB70,
|
|
| CAN communication system | 202304,999999,_57,_080743,_0598517,RM100000002B6UW,
|
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Left daytime running light does not illuminate | Headlight assembly LH | 202304,999999,_59,_080784,_0393156,RM100000002B29P,
|
| Harness or connector | - | |
| Right daytime running light does not illuminate | Headlight assembly RH | 202304,999999,_59,_080784,_0393156,RM100000002B29P,
|
| Harness or connector | - | |
| Both left and right daytime running lights do not illuminate | Daytime running light circuit | 202307,999999,_59,_080784,_0600055,RM100000002D7DN,
|
| Headlight dimmer switch circuit | 202304,202502,_59,_080784,_0600055,RM100000002BAXI,202502,999999,_59,_080784,_0600055,RM100000002RCUH,
|
|
| IG signal circuit | 202304,999999,_58,_080785,_0600096,RM100000002BB70,
|
|
| CAN communication system | 202304,999999,_57,_080743,_0598517,RM100000002B6UW,
|
|
| Main body ECU (Multiplex network body ECU) | 202304,202502,_57,_080742,_0392832,RM100000002B2HJ,202502,999999,_57,_080742,_0392832,RM100000002RPNZ,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Headlight beam level control does not operate | Headlight leveling switch | 201906,999999,_59,_080784,_0394755,RM100000001I7ZN,
|
| Harness or connector | - | |
| Headlight assembly | 202307,999999,_59,_080784,_0393155,RM100000002D1AI,
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Headlight beam level control does not operate | Headlight leveling switch | 201906,999999,_59,_080784,_0394755,RM100000001I7ZN,
|
| Harness or connector | - | |
| Headlight assembly | 201906,999999,_59,_080784,_0393156,RM100000001HW4M,
|