RM36D0EC _59 Vehicle Exterior _083096 LIGHTING (EXT) _0402622 LIGHTING SYSTEM U

LIGHTING (EXT)  LIGHTING SYSTEM  TERMINALS OF ECU  


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


E439703C49
3.458,7.583 3.854,7.885 0.396,0.302 5.594,3.219 6.01,3.458 0.417,0.24 1.146,3.198 1.563,3.438 0.417,0.24 1.219,4.469 1.635,4.708 0.417,0.24 1.458,6.042 1.875,6.281 0.417,0.24 3.615,6.063 4.031,6.302 0.417,0.24 4.385,4.458 4.802,4.698 0.417,0.24 6.375,6.073 6.792,6.313 0.417,0.24 4.719,6.094 5.135,6.333 0.417,0.24 6.208,4.479 6.625,4.719 0.417,0.24 5.49,6.094 5.906,6.333 0.417,0.24 3.469,3.188 3.885,3.427 0.417,0.24 2.219,0.917 2.219,0.698 2.219,0.698 2.385,0.698 true 0.646,1.229 0.927,1.229 true 2.229,1.51 2.469,1.51 true 2.219,1.802 2.458,1.802 true 0.646,2.073 0.885,2.073 true 0.635,2.302 0.875,2.302 true 0.646,2.542 1.125,2.542 true 0.635,1.698 0.917,1.698 true 6.292,1.156 6.573,1.156 true 6.271,1.75 6.552,1.75 true 6.292,2.208 6.573,2.208 true 2.229,2.125 2.469,2.125 true 1.177,0.542 1.177,0.323 1.177,0.323 1.344,0.323 true 4.865,0.563 4.865,0.344 4.865,0.344 5.031,0.344 true 6.146,0.51 6.146,0.292 6.146,0.292 6.313,0.292 true 4.281,0.948 4.438,1.146 0.156,0.198 10 false A 3.625,7.677 3.781,7.875 0.156,0.198 10 false A 0.469,1.635 0.781,1.833 0.313,0.198 10 false 6E 0.438,1.99 0.75,2.188 0.313,0.198 10 false 6K 2.521,1.438 2.979,1.635 0.458,0.198 10 false G167 2.51,1.74 2.969,1.938 0.458,0.198 10 false G168 0.448,2.24 0.948,2.469 0.5,0.229 10 false 6J 2.458,0.635 2.917,0.833 0.458,0.198 10 false *2 6.656,1.083 6.969,1.281 0.313,0.198 10 false 6C 6.615,1.677 6.927,1.875 0.313,0.198 10 false 6B 1.208,3.25 1.667,3.448 0.458,0.198 10 false G169 3.531,3.24 3.99,3.438 0.458,0.198 10 false G168 1.344,4.521 1.656,4.719 0.313,0.198 10 false 6C 4.531,4.521 4.844,4.719 0.313,0.198 10 false 6B 1.615,6.115 1.927,6.313 0.313,0.198 10 false 6F 3.74,6.125 4.052,6.323 0.313,0.198 10 false 6E 6.51,6.125 6.823,6.323 0.313,0.198 10 false 6H 4.865,6.146 5.219,6.302 0.354,0.156 10 false 6K 0.448,1.146 1.063,1.344 0.615,0.198 10 false 6F 0.167,0.083 0.625,0.281 0.458,0.198 12 false *A 0.469,2.49 0.969,2.719 0.5,0.229 10 false 6H 6.615,2.135 6.927,2.333 0.313,0.198 10 false 6A 6.344,4.542 6.656,4.74 0.313,0.198 10 false 6A 5.635,6.146 5.948,6.344 0.313,0.198 10 false 6J 2.521,2.063 2.979,2.26 0.458,0.198 10 false G169 5.646,3.281 6.104,3.479 0.458,0.198 10 false G167 1.406,0.24 1.865,0.438 0.458,0.198 10 false *1 5.104,0.25 5.563,0.448 0.458,0.198 10 false *1 6.375,0.188 6.833,0.385 0.458,0.198 10 false *1
*A Main Body ECU (Multiplex Network Body ECU) with 3 connectors - -
*1 Power Distribution Box Assembly *2 Main Body ECU (Multiplex Network Body ECU)


E439702C35
3.458,7.583 3.854,7.885 0.396,0.302 4.781,3.135 5.26,3.375 0.479,0.24 1.219,4.469 1.635,4.708 0.417,0.24 1.458,6.042 1.875,6.281 0.417,0.24 3.615,6.063 4.031,6.302 0.417,0.24 4.385,4.458 4.802,4.698 0.417,0.24 6.375,6.073 6.792,6.313 0.417,0.24 4.719,6.094 5.135,6.333 0.417,0.24 6.208,4.479 6.625,4.719 0.417,0.24 5.49,6.094 5.906,6.333 0.417,0.24 2.052,3.135 2.531,3.375 0.479,0.24 2.219,0.854 2.219,0.635 2.219,0.635 2.385,0.635 true 0.646,1.229 0.927,1.229 true 2.229,1.51 2.469,1.51 true 2.219,1.802 2.458,1.802 true 0.646,2 0.885,2 true 0.635,2.229 0.875,2.229 true 0.646,2.479 1.125,2.479 true 0.635,1.698 0.917,1.698 true 6.292,1.156 6.573,1.156 true 6.271,1.75 6.552,1.75 true 6.292,2.135 6.573,2.135 true 1.104,0.469 1.104,0.25 1.104,0.25 1.271,0.25 true 4.938,0.49 4.938,0.271 4.938,0.271 5.104,0.271 true 6.146,0.438 6.146,0.219 6.146,0.219 6.313,0.219 true 4.281,0.948 4.438,1.146 0.156,0.198 10 false A 3.625,7.677 3.781,7.875 0.156,0.198 10 false A 0.427,1.615 0.74,1.813 0.313,0.198 10 false 6E 0.448,1.927 0.76,2.125 0.313,0.198 10 false 6K 2.521,1.438 2.979,1.635 0.458,0.198 10 false G168 2.51,1.74 2.969,1.938 0.458,0.198 10 false G169 0.448,2.177 0.948,2.406 0.5,0.229 10 false 6J 2.458,0.552 2.917,0.75 0.458,0.198 10 false *2 6.656,1.083 6.969,1.281 0.313,0.198 10 false 6C 6.615,1.688 6.927,1.885 0.313,0.198 10 false 6B 2.115,3.156 2.573,3.354 0.458,0.198 10 false G169 4.854,3.188 5.313,3.385 0.458,0.198 10 false G168 1.344,4.521 1.656,4.719 0.313,0.198 10 false 6C 4.531,4.521 4.844,4.719 0.313,0.198 10 false 6B 1.615,6.115 1.927,6.313 0.313,0.198 10 false 6F 3.74,6.125 4.052,6.323 0.313,0.198 10 false 6E 6.51,6.125 6.823,6.323 0.313,0.198 10 false 6H 4.865,6.146 5.219,6.302 0.354,0.156 10 false 6K 0.448,1.146 1.063,1.344 0.615,0.198 10 false 6F 0.167,0.083 0.625,0.281 0.458,0.198 12 false *A 0.469,2.417 0.969,2.646 0.5,0.229 10 false 6H 6.604,2.083 6.917,2.281 0.313,0.198 10 false 6A 6.344,4.542 6.656,4.74 0.313,0.198 10 false 6A 5.635,6.146 5.948,6.344 0.313,0.198 10 false 6J 1.333,0.188 1.792,0.385 0.458,0.198 10 false *1 5.167,0.177 5.625,0.375 0.458,0.198 10 false *1 6.385,0.125 6.844,0.323 0.458,0.198 10 false *1
*A Main Body ECU (Multiplex Network Body ECU) with 2 connectors - -
*1 Power Distribution Box Assembly *2 Main Body ECU (Multiplex Network Body ECU)


a.

Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


b.

Connect the power distribution box assembly connectors.


c.

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

Terminal No. (Symbol) Terminal Description Condition Specified Condition
A-27 (IGR) - Body ground Ignition power supply Ignition switch ON 11 to 14 V
Ignition switch off Below 1 V
A-26 (BECU) - Body ground Auxiliary battery power supply Ignition switch off 11 to 14 V
A-13 (GND1) - Body ground Ground Always Below 1 Ω



e.

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

Terminal No. (Symbol) Terminal Description Condition Specified Condition
6E-9 - Body ground BKUP LP relay drive signal input Ignition switch off, shift lever not in R 11 to 14 V
Ignition switch ON, shift lever in R Below 1 V
6E-3 (DRL) - Body ground Daytime running light system drive output Daytime running light system operating Below 1 V
Daytime running light system not operating 11 to 14 V
6E-6 (HRLY) - Body ground H-LP LH relay drive output Light control switch in HEAD position Below 1 V
Light control switch off position 11 to 14 V
6E-10 (HRY2) - Body ground H-LP RH relay drive output Light control switch in HEAD position Below 1 V
Light control switch off 11 to 14 V
6F-30 - Body ground Taillights and license plate lights drive output Taillight illuminates 11 to 14 V
Taillight not illuminates Below 1 V
6F-38 - Body ground Back-up lights drive output Ignition switch ON, shift lever not in R Below 1 V
Ignition switch ON, shift lever in R 11 to 14 V
6E-18 - Body ground Clearance lights and daytime running lights drive output Parking lights and front side marker light illuminates 11 to 14 V
Parking lights and front side marker light not illuminates Below 1 V
G169-8 (CLTB) - G169-21 (CLTE) Automatic light control sensor power supply output Ignition switch ON 11 to 14 V
G169-14 (AHBI) - 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
G169-15 (AHID) - Body ground Auto high beam switch indicator drive output Ignition switch ON, auto high beam switch on Below 1 V
Ignition switch ON, auto high beam switch off 11 to 14 V
G169-20 (CLTS) - Body ground Automatic light control sensor signal input Ignition switch off Below 1 V
Ignition switch ON Pulse generation
(See waveform 1)
G169-22 (DIM) - Body ground High beam headlight drive output Ignition switch ON, light control switch in HEAD position and dimmer switch in high or high flash position Below 1 V
Ignition switch ON, dimmer switch not in high or high flash position 11 to 14 V
G169-26 (HEAD) - 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
G168-12 (LLEW) - Body ground Light control LED ECU LH signal input Ignition switch ON, light control switch off 11 to 14 V
Ignition switch ON, light control switch in head position Pulse generation
G168-13 (RLEW) - Body ground Light control LED ECU RH signal input Ignition switch ON, light control switch off 11 to 14 V
Ignition switch ON, light control switch in head position Pulse generation

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

Waveform 1

Item Content
Tester Connection G169-20 (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.