RM3660EC _57 Power Source / Network _080742 POWER DISTRIBUTION _0596896 POWER INTEGRATION SYSTEM U

POWER DISTRIBUTION  POWER INTEGRATION SYSTEM  TERMINALS OF ECU  


NOTICE:

When disconnecting the cable from the negative (-) auxiliary battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>BEFORE DISCONNECTING BATTERY


HINT:

When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>AUTOMATIC LEARNING CHART


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


B656499N02
2.385,3.219 2.823,3.469 0.438,0.25 4.708,3.208 5.146,3.458 0.438,0.25 1.76,4.573 2.198,4.823 0.438,0.25 5.385,4.573 5.823,4.823 0.438,0.25 1.208,6.156 1.646,6.406 0.438,0.25 3.083,6.125 3.521,6.375 0.438,0.25 6.281,6.135 6.719,6.385 0.438,0.25 3.531,7.865 3.969,8.115 0.438,0.25 5.281,6.135 5.719,6.385 0.438,0.25 4.271,6.135 4.708,6.385 0.438,0.25 1.667,1.365 1.969,1.365 false 4.042,0.802 4.042,0.323 4.042,0.323 4.229,0.323 false 1.656,1.698 1.958,1.698 false 0.615,1.167 0.927,1.167 false 0.625,1.604 0.938,1.604 false 0.625,1.865 0.938,1.865 false 0.625,2.094 0.938,2.094 false 0.635,2.344 0.948,2.344 false 5.938,1.229 6.25,1.229 false 5.938,1.844 6.25,1.844 false 3.667,7.917 3.979,8.115 0.313,0.198 10 false MB 4.281,0.229 4.594,0.427 0.313,0.198 10 false MB 2.021,1.281 2.333,1.479 0.313,0.198 10 false I86 2.021,1.615 2.333,1.813 0.313,0.198 10 false I85 0.323,1.083 0.635,1.281 0.313,0.198 10 false 10G 6.302,1.146 6.688,1.344 0.385,0.198 10 false 10F 2.5,3.271 2.813,3.469 0.313,0.198 10 false I85 4.823,3.26 5.135,3.458 0.313,0.198 10 false I86 1.865,4.625 2.177,4.823 0.313,0.198 10 false 10E 1.292,6.208 1.667,6.406 0.375,0.198 10 false 10G 3.177,6.177 3.49,6.375 0.313,0.198 10 false 10A 4.365,6.188 4.729,6.375 0.365,0.188 10 false 10C 5.385,6.188 5.698,6.385 0.313,0.198 10 false 10B 6.385,6.177 6.698,6.375 0.313,0.198 10 false 10D 5.49,4.615 5.927,4.792 0.438,0.177 10 false 10F 6.313,1.76 6.667,1.958 0.354,0.198 10 false 10E 0.313,1.531 0.625,1.729 0.313,0.198 10 false 10A 0.313,1.792 0.625,1.99 0.313,0.198 10 false 10C 0.323,2.021 0.635,2.219 0.313,0.198 10 false 10B 0.323,2.271 0.635,2.469 0.313,0.198 10 false 10D

a.

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

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
MB-13 (GND1) - Body ground Ground Always Below 1 Ω
MB-14 (GND2) - Body ground Ground Always Below 1 Ω
MB-26 (BECU) - Body ground Auxiliary battery power supply Ignition switch off 11 to 14 V
MB-27 (IGR) - Body ground Ignition power supply (IG signal) Ignition switch ON 11 to 14 V


d.

Install the main body ECU (multiplex network body ECU) to power distribution box assembly.


e.

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

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
10G-43 - Body ground B - Body ground Rear window defogger signal (output) Rear window defogger switch off Below 1 V
Rear window defogger switch on 11 to 14 V
10G-13 - Body ground B - Body ground*1
GR - Body ground*2
R - Body ground*5 		Back-up light output Ignition switch ON, shift position is not R Below 1 V
Ignition switch ON, shift position is R 11 to 14 V
10F-11 - Body ground B - Body ground*1
LA-R - Body ground*2
R - Body ground*5, *6 		DOME CUT relay output Always 11 to 14 V
10G-24 - Body ground R - Body ground
10E-6 - Body ground*3 P - Body ground*1
LG - Body ground*2 		Mirror heater drive voltage (output) Rear window defogger switch off Below 1 V
Rear window defogger switch on 11 to 14 V
10G-15 - Body ground L - Body ground*1, *6
G - Body ground*2 		Tail light output Tail light not illuminated Below 1 V
Tail light illuminated 11 to 14 V
10A-20 - Body ground L - Body ground*1, *6
LG - Body ground*2 		Tail light not illuminated Below 1 V
Tail light illuminated 11 to 14 V
10G-7 - Body ground*4 R - Body ground Front fog light output Tail light illuminated, front fog light switch off 11 to 14 V
Tail light illuminated, front fog light switch on Below 1 V
10G-29 - Body ground P - Body ground*1
BR - Body ground*2
B - Body ground*6 		Rear fog light output Tail light illuminated, rear fog light switch off Below 1 V
Tail light illuminated, rear fog light switch on 11 to 14 V

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*1: for TFTM Made

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*2: for GTMC Made

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*3: w/ Mirror Heater

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*4: w/ Front Fog Light

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*5: for ALLION

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*6: for M20C-FKS, M20F-FXS