RM38N0EC _59 Vehicle Exterior _111834 LIGHTING (EXT) _0499887 LIGHTING SYSTEM U

LIGHTING (EXT)  LIGHTING SYSTEM  TERMINALS OF ECU  


CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND POWER DISTRIBUTION BOX ASSEMBLY


B704094N01
3.396,3.25 3.781,3.479 0.385,0.229 1.521,4.5 1.906,4.729 0.385,0.229 3.875,4.5 4.26,4.729 0.385,0.229 5.698,4.5 6.083,4.729 0.385,0.229 1.146,6.104 1.531,6.333 0.385,0.229 2.938,6.104 3.323,6.333 0.385,0.229 4.25,6.104 4.635,6.333 0.385,0.229 3.438,7.781 3.823,8.01 0.385,0.229 1.24,3.24 1.625,3.469 0.385,0.229 5.26,6.104 5.646,6.333 0.385,0.229 6.26,6.104 6.646,6.333 0.385,0.229 5.458,3.25 5.844,3.479 0.385,0.229 1.958,1.229 2.26,1.229 false 4.26,0.813 4.26,0.26 4.26,0.26 4.438,0.26 false 1.958,1.552 2.26,1.552 false 1.958,1.875 2.26,1.875 false 0.969,1.885 1.281,2.083 0.313,0.198 10 false 4H 1.167,2.385 1.479,2.583 0.313,0.198 10 false 4F 0.979,1.083 1.292,1.281 0.313,0.198 10 false 4E 0.979,1.594 1.292,1.792 0.313,0.198 10 false 4D 6.052,2.094 6.365,2.292 0.313,0.198 10 false 4A 2.333,1.49 2.792,1.688 0.458,0.198 10 false E36 2.333,1.813 2.792,2.01 0.458,0.198 10 false E37 4.5,0.198 4.885,0.385 0.385,0.188 10 false MB 1.333,3.292 1.802,3.5 0.469,0.208 10 false E37 3.49,3.292 3.948,3.49 0.458,0.198 10 false E36 3.052,6.146 3.51,6.344 0.458,0.198 10 false 4D 5.813,4.542 6.271,4.74 0.458,0.198 10 false 4A 3.542,7.813 4,8.01 0.458,0.198 10 false MB 6.031,1.729 6.344,1.927 0.313,0.198 10 false 4B 6.031,1.146 6.344,1.344 0.313,0.198 10 false 4C 0.969,2.146 1.281,2.344 0.313,0.198 10 false 4G 3.979,4.552 4.292,4.75 0.313,0.198 10 false 4B 1.635,4.542 1.948,4.74 0.313,0.198 10 false 4C 1.26,6.135 1.573,6.333 0.313,0.198 10 false 4E 4.365,6.146 4.677,6.344 0.313,0.198 10 false 4H 5.354,6.146 5.667,6.344 0.313,0.198 10 false 4G 6.375,6.146 6.688,6.344 0.313,0.198 10 false 4F 5.542,3.302 6,3.5 0.458,0.198 10 false E38 2.323,1.156 2.781,1.354 0.458,0.198 10 false E38

a.

Disconnect the power distribution box assembly and main body ECU (multiplex network body ECU) connectors.


b.

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

Terminal No. (Symbol) Terminal Description Condition Specified Condition
4B-36 - Body ground Ground Always Below 1 Ω
4B-44 - Body ground Ground Always Below 1 Ω
4C-41 - Body ground Ground Always Below 1 Ω
4C-25 - Body ground Ground Always Below 1 Ω
4D-21 - Body ground Auxiliary battery power supply Ignition switch off*1
Always*2
11 to 14 V
4D-23 - Body ground Auxiliary battery power supply Ignition switch off*1
Always*2
11 to 14 V
4G-1 - Body ground Auxiliary battery power supply Ignition switch off*1
Always*2
11 to 14 V

*1: for HV Model

*2: for Gasoline Model



c.

Connect the power distribution box assembly and main body ECU (multiplex network body ECU) connectors.


d.

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

Terminal No. (Symbol) Terminal Description Condition Specified Condition
4B-29 - Body ground*1 R shift position switch signal Ignition switch off, reverse (R) not selected Below 1 V
Ignition switch ON, reverse (R) selected 11 to 14 V
4D-3 - Body ground*2 DRL relay drive output Daytime running light system not operating 11 to 14 V
Daytime running light system operating Below 1 V
4D-6 - Body ground H-LP LH relay drive output
·

15 seconds or more after ignition switch turned off

·

Taillights off


9.5 to 14 V
·

Ignition switch ON or within 15 seconds after ignition switch turned off

·

Taillights on


Below 1 V
4D-10 - Body ground H-LP RH relay drive output
·

15 seconds or more after ignition switch turned off

·

Taillights off


9.5 to 14 V
·

Ignition switch ON or within 15 seconds after ignition switch turned off

·

Taillights on


Below 1 V
4D-15 - Body ground*3 IG power supply Ignition switch off Below 1 V
Ignition switch ON 11 to 14 V
4E-7 - Body ground Taillights drive output Taillights off Below 1 V
Taillights on 11 to 14 V
4E-28 - Body ground Front fog lights drive output Taillights on, fog light switch in off position Below 1 V
Taillights on, fog light switch in front position 11 to 14 V
4E-30 - Body ground Rear fog lights drive output Taillights on, fog light switch in off position Below 1 V
Taillights on, fog light switch in rear position 11 to 14 V
4E-38 - Body ground Back-up lights drive output Ignition switch off, reverse (R) not selected Below 1 V
Ignition switch ON, reverse (R) selected 11 to 14 V
E36-13 (RLEW) - Body ground Light control LED ECU signal input Ignition switch ON, taillight off 11 to 14 V
Ignition switch ON, light control switch in head position Pulse generation
E36-12 (LLEW) - Body ground Light control LED ECU signal input Ignition switch ON, taillight off 11 to 14 V
Ignition switch ON, light control switch in head position Pulse generation
E37-8 (CLTB) - E37-21 (CLTE) Automatic light control sensor power supply output Ignition switch ON 11 to 14 V
E37-14 (AHBI) - Body ground Auto high beam switch signal input Auto high beam switch off 11 to 14 V
Auto high beam switch on Below 1 V
E37-15 (AHID) - Body ground Auto high beam switch indicator drive output Ignition switch ON, auto high beam switch off 11 to 14 V
Ignition switch ON, auto high beam switch on Below 1 V
E37-20 (CLTS) - Body ground Automatic light control sensor signal input Ignition switch off Below 1 V
Ignition switch ON Pulse generation (See waveform 1)
E37-26 (HEAD) - Body ground Light control switch head position input Light control switch not in head position 11 to 14 V
Light control switch in head position Below 1 V
E38-2 (MILE) - Body ground*4 Door mirror foot lights drive output Door mirror foot light off Below 3 V
Door mirror foot light illuminates 11 to 14 V

*1: for HV Model

*2: w/ Projector Headlight

*3: for Gasoline Model

*4: w/ Door Mirror Foot Light


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

Waveform 1

Item Content
Tester Connection E37-20 (CLTS) - Body ground
Tool setting 2 V/DIV., 10 ms./DIV.
Condition Ignition switch ON

HINT:

The communication waveform changes according to the surrounding brightness.