RM38N0EC _58 Vehicle Interior _111830 DOOR LOCK _0505351 POWER DOOR LOCK CONTROL SYSTEM J

DOOR LOCK  POWER DOOR LOCK CONTROL SYSTEM  Power Source Circuit  


DESCRIPTION

The main power source for the main body ECU (multiplex network body ECU) is supplied via the door control battery.

WIRING DIAGRAM

B581848E06
1.708,0.542 2.573,1.073 0.865,0.531 10 false from Auxiliary Battery 3.042,0.688 3.823,0.969 0.781,0.281 10 false D/L NO. 1 2.792,1.552 3.938,1.833 1.146,0.281 10 false ECU-IGR NO. 2 1.396,5.458 4.083,5.719 2.688,0.26 10 false Power Distribution Box Assembly 0.115,5.948 0.729,6.208 0.615,0.26 10 false MB 0.094,6.115 3.083,6.385 2.99,0.271 10 false Main Body ECU (Multiplex Network Body ECU) 5.656,5.927 6.271,6.188 0.615,0.26 10 false E48 5.635,6.083 7.094,6.552 1.458,0.469 10 false Door Control Battery 5.75,5.219 6.365,5.479 0.615,0.26 10 false GND1 5.74,4.135 6.354,4.396 0.615,0.26 10 false EDOR 5.75,1.313 6.365,1.573 0.615,0.26 10 false IG 5.75,0.458 6.365,0.719 0.615,0.26 10 false BATB 4.063,0.354 4.677,0.615 0.615,0.26 10 false 35 4.042,0.552 4.656,0.813 0.615,0.26 10 false 4B 4.063,1.229 4.677,1.49 0.615,0.26 10 false 38 4.042,1.417 4.656,1.677 0.615,0.26 10 false 4B 4.042,4.083 4.656,4.344 0.615,0.26 10 false 27 0.479,4.292 1.094,4.552 0.615,0.26 10 false IC 0.917,4.135 1.531,4.396 0.615,0.26 10 false SBAT 1.406,4.146 2.021,4.406 0.615,0.26 10 false 25 5.594,0.448 6.208,0.708 0.615,0.26 10 false 2 5.594,1.313 6.208,1.573 0.615,0.26 10 false 4 5.49,4.135 6.104,4.396 0.615,0.26 10 false 12 5.583,5.219 6.198,5.479 0.615,0.26 10 false 3 5.75,2.188 6.365,2.448 0.615,0.26 10 false DRLY 0.917,2.167 1.531,2.427 0.615,0.26 10 false ACT+ 4.042,2.281 4.656,2.542 0.615,0.26 10 false 4B 4.052,4.292 4.667,4.552 0.615,0.26 10 false 4C 4.052,2.094 4.667,2.354 0.615,0.26 10 false 33 2.292,3.49 4.51,3.792 2.219,0.302 10 false to Each Door Lock Motor 2.219,2.781 3.906,3.083 1.688,0.302 10 false ALL DOOR LOCK 5.594,2.177 6.208,2.438 0.615,0.26 10 false 1 1.396,2.167 2.01,2.427 0.615,0.26 10 false 11 1.615,1.417 2.583,1.885 0.969,0.469 10 false from IGR NO. 2 Relay

CAUTION / NOTICE / HINT

NOTICE:
·

Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.

·

Inspect the fuses for circuits related to this system before performing the following procedure.



PROCEDURE

1.CHECK HARNESS AND CONNECTOR (DOOR CONTROL BATTERY - POWER SUPPLY AND BODY GROUND)
a.

Disconnect the E48 door control battery connector.


b.

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

Standard Voltage:
Tester Connection Condition Specified Condition

Click Location & Routing(E48)Location & Routing

Click Connector(E48)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Door Control Battery

E48-2 (BATB) - Body ground Ignition switch off 11 to 14 V
E48-4 (IG) - Body ground Ignition switch on 11 to 14 V



c.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(E48)Location & Routing

Click Connector(E48)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Door Control Battery

E48-3 (GND1) - Body ground Always Below 1 Ω



Result:
Proceed to
OK A
NG (GND1 terminal abnormal) B
NG (Other terminal abnormal) C



A

2.CHECK ILLUMINATED ENTRY SYSTEM

B

REPAIR OR REPLACE HARNESS OR CONNECTOR

C

8.CHECK HARNESS AND CONNECTOR (DOOR CONTROL BATTERY - POWER DISTRIBUTION BOX ASSEMBLY)
2.CHECK ILLUMINATED ENTRY SYSTEM
a.

Check that the illuminated entry system operates normally.

Click hereVehicle Interior>LIGHTING (INT)>LIGHTING SYSTEM>OPERATION CHECK


Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (DOOR CONTROL BATTERY - POWER DISTRIBUTION BOX ASSEMBLY) (DRLY TERMINAL)

NG

5.CHECK HARNESS AND CONNECTOR (DOOR CONTROL BATTERY - POWER DISTRIBUTION BOX ASSEMBLY) (EDOR TERMINAL)
3.CHECK HARNESS AND CONNECTOR (DOOR CONTROL BATTERY - POWER DISTRIBUTION BOX ASSEMBLY) (DRLY TERMINAL)
a.

Disconnect the 4B power distribution box assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(E48)Location & Routing

Click Connector(E48)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Door Control Battery

E48-1 (DRLY) - 4B-33 Always Below 1 Ω
E48-1 (DRLY) or 4B-33 - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.INSPECT DOOR CONTROL BATTERY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.INSPECT DOOR CONTROL BATTERY
a.

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

Standard Resistance:
Tester Connection Condition Specified Condition
4B-33 - 4B-35 Always Below 1 Ω
4B-33 or 4B-35 - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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


NG

REPLACE DOOR CONTROL BATTERY

Click hereVehicle Interior>DOOR LOCK>DOOR CONTROL BATTERY>REMOVAL


5.CHECK HARNESS AND CONNECTOR (DOOR CONTROL BATTERY - POWER DISTRIBUTION BOX ASSEMBLY) (EDOR TERMINAL)
a.

Disconnect the 4C power distribution box assembly connector.


b.

Disconnect the E48 door control battery connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(E48)Location & Routing

Click Connector(E48)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Door Control Battery

E48-12 (EDOR) - 4C-27 Always Below 1 Ω
E48-12 (EDOR) or 4C-27 - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

6.INSPECT POWER DISTRIBUTION BOX ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.INSPECT POWER DISTRIBUTION BOX ASSEMBLY
a.

Remove the power distribution box assembly.

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


b.

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

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


c.

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

B581799C04
1.771,0.625 2.271,0.917 0.5,0.292 5.354,0.625 5.854,0.917 0.5,0.292 3.552,2.073 3.354,2.073 3.354,2.073 3.354,1.542 false 3.615,2.01 4.073,2.26 0.458,0.25 10 false SBAT 5.521,0.698 5.76,0.896 0.24,0.198 10 false 4C 1.948,0.708 2.302,0.906 0.354,0.198 10 false MB 0.156,0.052 0.458,0.208 0.302,0.156 10 false *a
*a Component without harness connected
(Power Distribution Box Assembly) 		- -


Standard Resistance:
Tester Connection Condition Specified Condition
MB-25 (SBAT) - 4C-27 Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

7.INSPECT DOOR CONTROL BATTERY (POWER OUTPUT)

NG

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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


7.INSPECT DOOR CONTROL BATTERY (POWER OUTPUT)
a.

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


b.

Reconnect the power distribution box assembly connectors.


c.

Reconnect the E48 door control battery connector.


d.

Turn the ignition switch off.


e.

Wait approximately 30 minutes. (Wait for the door control battery discharge to complete.)

HINT:

Depending on the state of charge of the door control battery, the discharge time may be shorter.



f.
B581819C03
1.51,0.073 1.948,0.365 0.438,0.292 1.104,1.885 1.25,1.885 1.25,1.885 1.5,1.219 true 0.719,1.823 1.333,2.021 0.615,0.198 10 false EDOR 1.604,0.167 2.219,0.365 0.615,0.198 10 false E48 0.125,0.115 0.438,0.271 0.313,0.156 10 false *a
*a Component with harness connected
(Door Control Battery)


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

Standard Voltage:
Tester Connection Condition Specified Condition

Click Location & Routing(E48)Location & Routing

Click Connector(E48)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Door Control Battery

E48-12 (EDOR) - Body ground Ignition switch off 11 to 14 V



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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


NG

REPLACE DOOR CONTROL BATTERY

Click hereVehicle Interior>DOOR LOCK>DOOR CONTROL BATTERY>REMOVAL


8.CHECK HARNESS AND CONNECTOR (DOOR CONTROL BATTERY - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the 4B and 4C power distribution box assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(E48)Location & Routing

Click Connector(E48)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Door Control Battery

E48-2 (BATB) - 4B-35 Always Below 1 Ω
E48-4 (IG) - 4B-38 Always Below 1 Ω
E48-2 (BATB) or 4B-35 - Other terminals and body ground Always 10 kΩ or higher
E48-4 (IG) or 4B-38 - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR