RM35X0E _59 Vehicle Exterior _079256 LIGHTING (EXT) _0396321 LIGHTING SYSTEM(w/ Headlight ECU) U

LIGHTING (EXT)  LIGHTING SYSTEM(w/ Headlight ECU)  TERMINALS OF ECU  


CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


E412753C01
3.208,7.729 3.615,8.01 0.406,0.281 5.969,6.26 6.375,6.542 0.406,0.281 2.021,4.49 2.427,4.771 0.406,0.281 5.208,4.469 5.615,4.75 0.406,0.281 1.375,6.073 1.781,6.354 0.406,0.281 3.448,6.083 3.854,6.365 0.406,0.281 5.083,5.969 5.49,6.25 0.406,0.281 5.083,6.302 5.49,6.583 0.406,0.281 3.156,3.052 3.563,3.333 0.406,0.281 5.219,3.042 5.625,3.323 0.406,0.281 1.365,3.063 1.771,3.344 0.406,0.281 0.635,2.167 0.917,2.167 true 1.583,1.438 1.865,1.438 true 1.594,1.698 1.875,1.698 true 1.594,1.146 1.875,1.146 true 1.573,0.51 1.573,0.219 1.573,0.219 1.729,0.219 false 0.854,0.969 1.167,1.167 0.313,0.198 10 false 3D 0.844,1.521 1.156,1.719 0.313,0.198 10 false 3C 0.844,1.854 1.156,2.052 0.313,0.198 10 false 3F 5.833,1.042 6.146,1.24 0.313,0.198 10 false 3B 5.833,1.604 6.146,1.802 0.313,0.198 10 false 3A 0.26,2.083 0.875,2.281 0.615,0.198 10 false 3E*A 0.26,2.281 0.875,2.479 0.615,0.198 10 false 3G*B 3.729,0.833 3.885,1.031 0.156,0.198 10 false A 3.375,7.781 3.531,7.979 0.156,0.198 10 false A 6.094,6.323 6.406,6.521 0.313,0.198 10 false 3F 2.104,4.542 2.417,4.74 0.313,0.198 10 false 3A 5.302,4.531 5.615,4.729 0.313,0.198 10 false 3B 1.5,6.156 1.813,6.354 0.313,0.198 10 false 3C 3.573,6.167 3.885,6.365 0.313,0.198 10 false 3D 5.198,6.021 5.51,6.219 0.313,0.198 10 false 3E 5.188,6.365 5.5,6.563 0.313,0.198 10 false 3G 5.552,6.031 5.865,6.229 0.313,0.198 10 false *A 5.563,6.333 5.875,6.531 0.313,0.198 10 false *B 3.25,3.125 3.708,3.323 0.458,0.198 10 false N19 5.281,3.115 5.74,3.313 0.458,0.198 10 false N18 1.427,3.135 1.885,3.333 0.458,0.198 10 false N20 1.938,1.365 2.396,1.563 0.458,0.198 10 false N19 1.938,1.615 2.396,1.813 0.458,0.198 10 false N20 1.927,1.063 2.385,1.26 0.458,0.198 10 false N18 1.771,0.146 2.083,0.344 0.313,0.198 10 false *1
*A for LHD *B for RHD
*1 Main Body ECU (Multiplex Network Body ECU) - -


a.

Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

for LHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for LHD)>REMOVAL

for RHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for RHD)>REMOVAL



b.

Connect the instrument panel junction block assembly connectors.


c.

Measure the voltage and resistance according to the value(s) in the table below.

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
A-32 (IG) - Body ground None - Body ground Ignition power supply Engine switch on (IG) 10.5 to 16 V*1
11 to 14 V*2
Engine switch off Below 1 V
A-31 (BECU) - Body ground None - Body ground Battery power supply Engine switch off 11 to 14 V
A-30 (ACC) - Body ground None - Body ground ACC power supply Engine switch on (ACC) 11 to 14 V
Engine switch off Below 1 V
A-11 (GND1) - Body ground None - Body ground Ground Always Below 1 Ω

*1: w/ Stop and Start System

*2: w/o Stop and Start System



d.

Install the main body ECU (multiplex network body ECU).

for LHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for LHD)>INSTALLATION

for RHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for RHD)>INSTALLATION



e.

Measure the voltage and resistance, and check for pulses according to the value(s) in the table below.

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
3C-25 (FFGO) - Body ground V - Body ground Fog light switch input Taillights on, fog light switch in Fr position 11 to 14 V
Taillights on, fog light switch OFF Below 1 V
3C-19 - Body ground L - Body ground BKUP LP relay drive output Engine switch off, shift lever not in R Below 1 V
Engine switch on (IG), shift lever in R 11 to 14 V
3C-31 (HRLY) - Body ground L - Body ground H-LP LH relay drive output Light control switch in HEAD position Below 1 V
Light control switch not in HEAD position 11 to 14 V
3C-32 (TRLY) - Body ground G - Body ground Front fog lights drive output Light control switch in TAIL or HEAD position 11 to 14 V
Light control switch in neither TAIL nor HEAD position Below 1 V
3B-11 (TRLY) - Body ground LG - Body ground Taillights and license plate lights drive output Light control switch in TAIL or HEAD position 11 to 14 V
Light control switch in neither TAIL nor HEAD position Below 1 V
N18-19 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
N20-21 (AHID) - Body ground*1 L - Body ground Auto high beam switch indicator drive output Engine switch on (IG), auto high beam switch on Below 1 V
Engine switch on (IG), auto high beam switch off 11 to 14 V
N19-12 (HRY2) - Body ground L - Body ground H-LP RH relay drive output Light control switch in HEAD position Below 1 V
Light control switch not in HEAD position 11 to 14 V
N19-16 (HEAD) - Body ground B - Body ground Light control switch HEAD position input Light control switch in HEAD position Below 1 V
Light control switch not in HEAD position 11 to 14 V
N19-23 (CLTB) - N19-25 (CLTE) L - G Automatic light control sensor power supply output Engine switch on (IG) 11 to 14 V
N19-24 (CLTS) - Body ground R - Body ground Automatic light control sensor signal input Engine switch off Below 1 V
Engine switch on (IG) Pulse generation
(See waveform 1)
N19-26 (AHBI) - Body ground*1 V - Body ground Auto high beam switch signal input Auto high beam switch on Below 1 V
Auto high beam switch off 11 to 14 V
3A-38 (PKB) - Body ground B - Body ground Parking brake switch signal input Parking brake switch on Below 1 V
Parking brake switch off 11 to 14 V
3D-21 (RFGO) - Body ground*2 G - Body ground Rear fog light drive output Taillights on, fog light switch in Fr&Rr position 11 to 14 V
Taillights on, fog light switch in off position Below 1 V

*1: w/ Automatic High Beam System

*2: w/ Rear Fog Light


i.
E276298N01
2.844,1.646 3.219,1.813 0.375,0.167 10 false GND

Waveform 1

Item Content
Tester Connection N19-24 (CLTS) - Body ground
Tool setting 2 V/DIV., 10 ms./DIV.
Condition Engine switch on (IG)

HINT:

The communication waveform changes according to the surrounding brightness.





CHECK HEADLIGHT ECU SUB-ASSEMBLY LH


E334043E23
2.156,0.156 2.646,0.396 0.49,0.24 5.531,0.271 6.021,0.51 0.49,0.24 2.281,0.198 2.74,0.396 0.458,0.198 10 false A54 5.74,0.313 6.198,0.51 0.458,0.198 10 false B

a.

Disconnect the A54 headlight ECU sub-assembly LH connector.


b.

Measure the voltage and resistance according to the value(s) in the table below.

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
A54-4 (IG) - Body ground R - Body ground Ignition power supply Engine switch off Below 1 V
Engine switch on (IG) 11 to 14 V
A54-12 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
A54-13 (ECUB) - Body ground P - Body ground Battery power supply
·

15 seconds or more after engine switch turned off

·

Taillights off


Below 1 V
·

Engine switch on (IG) or within 15 seconds after engine switch turned off

·

Taillights on


11 to 14 V


c.

Connect the A54 headlight ECU sub-assembly LH connector.

HINT:
·

Since the A54 headlight ECU sub-assembly LH connector is a waterproof type connector, the voltage and pulses cannot be checked directly. The values listed are for reference only.

·

Since the B headlight ECU sub-assembly LH connectors are connected inside the headlight assembly, the voltage and pulses cannot be checked directly. The values listed are for reference only.




d.

Measure the voltage and check of pulses according to the value(s) in the table below.

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition

*1: w/ Daytime Running Light

*2: w/o Daytime Running Light

A54-11 (TNS) - Body ground L - Body ground Front turn signal light LH signal input Engine switch on (IG), front turn signal light LH off Below 1 V
Engine switch on (IG), front turn signal light LH blinking 11 to 14 V ←→ Below 1 V
A54-16 (SBR) - A54-15 (SGR) LG - SB Rear height control sensor sub-assembly LH power supply Engine switch on (IG) 4.75 to 5.25 V
A54-17 (SHRL) - A54-15 (SGR) GR - SB Rear height control sensor sub-assembly LH signal input Engine switch on (IG), vehicle unloaded, vehicle stopped Approximately 2.5 V
(value decreases as the front of the vehicle is raised)
A54-23 (CANL) - Body ground W - Body ground CAN communication line Engine switch off Below 1 V
Engine switch on (IG) Pulse generation
A54-24 (CANH) - Body ground P - Body ground CAN communication line Engine switch off Below 1 V
Engine switch on (IG) Pulse generation
B-2 (LOLED2) - B-3 (LOLED1) - Low beam headlight LH drive output Low beam headlight LH off Below 1 V
Low beam headlight LH on 12.9 to 14.1 V
B-9 (ACTBI) - B-17 (ACTGI) - Headlight leveling motor power source Engine switch off Below 1 V
Engine switch on (IG) 11 to 14 V
B-8 (ACTSI) - B-17 (ACTGI) - Headlight leveling motor LH signal output Engine switch on (IG), low beam headlight LH on, vehicle height not changed Below 1 V
Engine switch on (IG), low beam headlight LH on, vehicle height changed and maintained for more than 3 seconds 1 to 14 V
B-20 (TURN+) - B-13 (TURN-) - Front turn signal light LH signal output Engine switch on (IG), front turn signal light LH off Below 1 V
Engine switch on (IG), front turn signal light LH blinking 11 to 14 V ←→ Below 1 V
B-10 (DRL/CLL+) - B-1 (DRL/CLL-)*1 - Left clearance lights/daytime running lights power source Left clearance lights and daytime running lights off Below 1 V
Left clearance lights and daytime running lights on 11 to 14 V
B-16 (PWM1) - B-1 (DRL/CLL-)*1 - Left clearance lights/daytime running lights control signal output Left clearance lights and daytime running lights off Below 1 V
Left clearance lights on Pulse generation
Left daytime running lights on 0.4 to 0.5 V
B-18 (CLL+) - B-12 (CLL-)*2 - Left clearance lights signal output Left clearance lights off Below 1 V
Left clearance lights on 11 to 14 V
B-19 (HI SOL+) - B-11 (HI SOL-) - High beam headlight LH drive output High beam headlight LH off Below 1 V
High beam headlight LH on 11 to 14 V



CHECK HEADLIGHT ECU SUB-ASSEMBLY RH


E334043E24
2.156,0.156 2.646,0.396 0.49,0.24 5.531,0.271 6.021,0.51 0.49,0.24 2.281,0.198 2.74,0.396 0.458,0.198 10 false A55 5.74,0.313 6.198,0.51 0.458,0.198 10 false B

a.

Disconnect the A55 headlight ECU sub-assembly RH connector.


b.

Measure the voltage and resistance according to the value(s) in the table below.

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
A55-4 (IG) - Body ground P - Body ground Ignition power supply Engine switch off Below 1 V
Engine switch on (IG) 11 to 14 V
A55-12 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
A55-13 (ECUB) - Body ground B - Body ground Battery power supply
·

15 seconds or more after engine switch turned off

·

Taillights off


Below 1 V
·

Engine switch on (IG) or within 15 seconds after engine switch turned off

·

Taillights on


11 to 14 V


c.

Connect the A55 headlight ECU sub-assembly RH connector.

HINT:
·

Since the A55 headlight ECU sub-assembly RH connector is a waterproof type connector, the voltage and pulses cannot be checked directly. The values listed are for reference only.

·

Since the B headlight ECU sub-assembly RH connectors are connected inside the headlight assembly, the voltage and pulses cannot be checked directly. The values listed are for reference only.




d.

Measure the voltage and check of pulses according to the value(s) in the table below.

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition

*1: w/ Daytime Running Light

*2: w/o Daytime Running Light

A55-11 (TNS) - Body ground R - Body ground Front turn signal light RH signal input Engine switch on (IG), front turn signal light RH off Below 1 V
Engine switch on (IG), front turn signal light RH blinking 11 to 14 V ←→ Below 1 V
A55-23 (CANL) - Body ground W - Body ground CAN communication line Engine switch off Below 1 V
Engine switch on (IG) Pulse generation
A55-24 (CANH) - Body ground G - Body ground CAN communication line Engine switch off Below 1 V
Engine switch on (IG) Pulse generation
B-2 (LOLED2) - B-3 (LOLED1) - Low beam headlight RH drive output Low beam headlight RH off Below 1 V
Low beam headlight RH on 12.9 to 14.1 V
B-9 (ACTBI) - B-17 (ACTGI) - Headlight leveling motor power source Engine switch off Below 1 V
Engine switch on (IG) 11 to 14 V
B-8 (ACTSI) - B-17 (ACTGI) - Headlight leveling motor RH signal output Engine switch on (IG), low beam headlight RH on, vehicle height not changed Below 1 V
Engine switch on (IG), low beam headlight RH on, vehicle height changed and maintained for more than 3 seconds 1 to 14 V
B-20 (TURN+) - B-13 (TURN-) - Front turn signal RH light signal output Engine switch on (IG), front turn signal light RH off Below 1 V
Engine switch on (IG), front turn signal light RH blinking 11 to 14 V ←→ Below 1 V
B-10 (DRL/CLL+) - B-1 (DRL/CLL-)*1 - Right clearance lights/daytime running lights power source Right clearance lights and daytime running lights off Below 1 V
Right clearance lights and daytime running lights on 11 to 14 V
B-16 (PWM1) - B-1 (DRL/CLL-)*1 - Right clearance lights/daytime running lights control signal output Right clearance lights and daytime running lights off Below 1 V
Right clearance lights on Pulse generation
Right daytime running lights on 0.4 to 0.5 V
B-18 (CLL+) - B-12 (CLL-)*2 - Right clearance lights/daytime running lights control signal output Right clearance lights off Below 1 V
Right clearance lights on 11 to 14 V
B-19 (HI SOL+) - B-11 (HI SOL-) - High beam headlight RH drive output High beam headlight RH off Below 1 V
High beam headlight RH on 11 to 14 V



CHECK COMBINATION METER ASSEMBLY


Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM>TERMINALS OF ECU


CHECK FORWARD RECOGNITION CAMERA (w/ Automatic High Beam System)


Click hereEngine / Hybrid System>CRUISE CONTROL>FRONT CAMERA SYSTEM>TERMINALS OF ECU