RM3660EC _57 Power Source / Network _080743 NETWORKING _0600591 CXPI COMMUNICATION SYSTEM U

NETWORKING  CXPI COMMUNICATION SYSTEM  TERMINALS OF ECU  


NOTICE:
·

Do not remove or install the power distribution box assembly with the negative (-) auxiliary battery terminal connected.

·

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>PRECAUTION

·

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 REPLACING OR REMOVING/INSTALLING PARTS>WORK PROCEDURE



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


B684942E01
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 3.635,7.906 3.948,8.104 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 0.792,1.083 1.104,1.281 0.313,0.198 10 false 10G 0.802,1.51 1.115,1.708 0.313,0.198 10 false 10A 0.813,1.781 1.125,1.979 0.313,0.198 10 false 10C 5.813,1.146 6.125,1.344 0.313,0.198 10 false 10F 2.51,3.26 2.823,3.458 0.313,0.198 10 false I85 4.833,3.26 5.146,3.458 0.313,0.198 10 false I86 1.865,4.615 2.177,4.813 0.313,0.198 10 false 10E 1.313,6.198 1.625,6.396 0.313,0.198 10 false 10G 3.188,6.167 3.5,6.365 0.313,0.198 10 false 10A 4.365,6.177 4.677,6.375 0.313,0.198 10 false 10C 5.375,6.177 5.688,6.375 0.313,0.198 10 false 10B 0.813,2.25 1.125,2.448 0.313,0.198 10 false 10D 0.813,2.01 1.125,2.208 0.313,0.198 10 false 10B 6.375,6.177 6.688,6.375 0.313,0.198 10 false 10D 5.479,4.615 5.792,4.813 0.313,0.198 10 false 10F 5.802,1.76 6.115,1.958 0.313,0.198 10 false 10E

a.

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

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


b.

Reconnect 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 Always*1
Ignition switch off*2 		11 to 14 V
MB-27 (IGR) - Body ground IG power supply Ignition switch off Below 1 V
Ignition switch ON 11 to 14 V

*1: for Gasoline Model

*2: for HEV Model



d.

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

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


e.

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

Terminal No. (Symbol) Terminal Description Condition Specified Condition
10A-9 - Body ground CXPI communication line Ignition switch ON Pulse generation



CHECK WINDSHIELD WIPER RELAY ASSEMBLY


for Gasoline Model: Click hereVehicle Exterior>WIPER / WASHER>WIPER AND WASHER SYSTEM (for Gasoline Model)>TERMINALS OF ECU

for HV Model: Click hereVehicle Exterior>WIPER / WASHER>WIPER AND WASHER SYSTEM (for HV Model)>TERMINALS OF ECU