RM36D0EC _59 Vehicle Exterior _083093 DOOR / HATCH _0584672 POWER BACK DOOR SYSTEM U

DOOR / HATCH POWER BACK DOOR SYSTEM TERMINALS OF ECU

CHECK MULTIPLEX NETWORK DOOR ECU

Disconnect the R28, R29, and R30 multiplex network door ECU connectors.

2.031,0.135 2.469,0.375 0.438,0.24 3.063,0.135 3.5,0.375 0.438,0.24 3.844,0.135 4.281,0.375 0.438,0.24 4.781,0.135 5.219,0.375 0.438,0.24 3.156,0.167 3.615,0.365 0.458,0.198 10 false R31 3.938,0.167 4.396,0.365 0.458,0.198 10 false R28 4.875,0.167 5.333,0.365 0.458,0.198 10 false R29 2.125,0.167 2.583,0.365 0.458,0.198 10 false R30

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

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition
R30-9 (IG) - Body ground	IG power supply	Ignition switch ON	11 to 14 V
R30-9 (IG) - Body ground	IG power supply	Ignition switch off	Below 1 V
R30-7 (ECUB) - Body ground	Auxiliary battery power supply	Ignition switch off	11 to 14 V
R29-5 (B) - Body ground	Auxiliary battery power supply	Ignition switch off	11 to 14 V
R28-4 (GND) - Body ground	Body ground	Always	Below 1 Ω

Reconnect the R28, R29, and R30 multiplex network door ECU connectors.

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

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition
R28-2 (DC+) - R28-6 (DC-)	Back door lock assembly (back door lock motor) circuit	Back door lock motor operating	11 to 14 V
R28-2 (DC+) - R28-6 (DC-)	Back door lock assembly (back door lock motor) circuit	Back door lock motor not operating	Below 1 V
R31-1 (OSL) - R31-9 (OSE)	Power back door sensor assembly LH signal	Power back door sensor assembly LH not pressed	4 to 6 V
R31-1 (OSL) - R31-9 (OSE)	Power back door sensor assembly LH signal	Power back door sensor assembly LH pressed	Below 1 V
R31-3 (DSV2) - Body ground	Power back door unit assembly RH (door sensor) power supply	Always	7 V or higher
R31-4 (DSV) - Body ground	Power back door unit assembly LH (door sensor) power supply	Always	7 V or higher
R31-5 (DS2) - Body ground	Power back door unit assembly LH (door sensor) signal	Power back door not operating	7 V or higher
R31-5 (DS2) - Body ground	Power back door unit assembly LH (door sensor) signal	Power back door operating	Pulse generation (See waveform 2)
R31-6 (DS12) - Body ground	Power back door unit assembly RH (door sensor) signal	Power back door not operating	7 V or higher
R31-6 (DS12) - Body ground	Power back door unit assembly RH (door sensor) signal	Power back door operating	Pulse generation (See waveform 1)
R31-8 (OSR) - R30-9 (OSE)	Power back door sensor assembly RH signal	Power back door sensor assembly RH not pressed	4 to 6 V
R31-8 (OSR) - R30-9 (OSE)	Power back door sensor assembly RH signal	Power back door sensor assembly RH pressed	Below 1 V
R31-10 (DSG2) - Body ground	Power back door unit assembly RH (door sensor) ground	Always	Below 1 V
R31-11 (DSG) - Body ground	Power back door unit assembly LH (door sensor) ground	Always	Below 1 V
R31-12 (DS22) - Body ground	Power back door unit assembly RH (door sensor) signal	Power back door not operating	7 V or higher
R31-12 (DS22) - Body ground	Power back door unit assembly RH (door sensor) signal	Power back door operating	Pulse generation (See waveform 2)
R31-13 (DS1) - Body ground	Power back door unit assembly LH (door sensor) signal	Power back door not operating	7 V or higher
R31-13 (DS1) - Body ground	Power back door unit assembly LH (door sensor) signal	Power back door operating	Pulse generation (See waveform 1)
R30-1 (BZR+) - Body ground	Power back door warning buzzer signal	Power back door warning buzzer sounding	Pulse generation
R30-1 (BZR+) - Body ground	Power back door warning buzzer signal	Power back door warning buzzer not sounding	Below 1 V
R30-3 (FUL) - Body ground	Back door lock with courtesy light switch assembly input	Back door open	Below 1 V
R30-3 (FUL) - Body ground	Back door lock with courtesy light switch assembly input	Back door closed	Pulse generation
R30-5(HAF) - Body ground	Back door lock with courtesy light switch assembly lock signal	Back door closed	11 to 14 V
R30-5(HAF) - Body ground		Back door fully open	Below 1 V
R30-11(LIB) - Body ground	Back door lock with courtesy light switch assembly lock signal	Back door is locked	11 to 14 V
R30-11(LIB) - Body ground		Back door is unlocked	Below 1 V
R30-12 (KSIN) - Body ground	Kick detection signal	Ignition switch ON, kick door control sensor not detecting a foot → detecting a foot	Pulse generation (See waveform 3)
R30-13(PAWL) - Body ground	Back door lock with courtesy light switch assembly lock signal	Back door fully open	Below 1 V
		Back door ajar	11 to 14 V
		Back door closed	11 to 14 V
		Operation complete	Below 1 V
R30-14 (BDDN) - Body ground	Power back door control switch signal	Power back door control switch on	Below 1 V
R30-14 (BDDN) - Body ground	Power back door control switch signal	Power back door control switch off	Pulse generation
R30-15(POS) - Body ground	Back door lock with courtesy light switch assembly signal	Back door open	Below 1 V
		Back door closer operating	11 to 14 V
		Operation complete	Below 1 V

2.854,1.76 3.313,1.958 0.458,0.198 10 false GND

Using an oscilloscope, check waveform 1.

Waveform 1 (Reference)
Item	Condition
Tester Connection	· R31-13 (DS1) - Body ground · R31-6 (DS12) - Body ground
Tool Setting	2 V/DIV., 2 ms./DIV.
Vehicle Condition	Power back door operating

HINT:: ·

The period changes in accordance to the speed at which the power back door is opened and closed.

·

The wave height changes in accordance with the auxiliary battery voltage.

ii.

2.854,1.75 3.313,1.948 0.458,0.198 10 false GND

Using an oscilloscope, check waveform 2.

Waveform 2 (Reference)
Item	Condition
Tester Connection	· R31-5 (DS2) - Body ground · R31-12 (DS22) - Body ground
Tool Setting	2 V/DIV., 2 ms./DIV.
Vehicle Condition	Power back door operating

HINT:: ·

The period changes in accordance to the speed at which the power back door is opened and closed.

·

The wave height changes in accordance with the auxiliary battery voltage.

iii.

0.313,1.625 0.771,1.823 0.458,0.198 10 false GND 1.823,1.948 2.281,2.146 0.458,0.198 10 false *a

*a	Kick detection signal

Using an oscilloscope, check waveform 3.

Waveform 3 (Reference)
Item	Content
Tester Connection	R30-12 (KSIN) - Body ground
Tool Setting	2 V/DIV., 50 ms./DIV.
Vehicle Condition	Ignition switch ON, kick door control sensor not detecting a foot → detecting a foot

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

3.375,7.604 3.823,7.875 0.448,0.271 5.656,3.177 6.083,3.438 0.427,0.26 1.115,3.167 1.583,3.448 0.469,0.281 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 3.385,3.167 3.844,3.448 0.458,0.281 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 4.271,0.99 4.427,1.188 0.156,0.198 10 false A 3.573,7.667 3.729,7.865 0.156,0.198 10 false A 0.427,1.625 0.74,1.823 0.313,0.198 10 false 6E 0.427,1.969 0.74,2.167 0.313,0.198 10 false 6K 2.542,1.417 3,1.615 0.458,0.198 10 false G167 2.531,1.719 2.99,1.917 0.458,0.198 10 false G168 0.438,2.229 0.938,2.458 0.5,0.229 10 false 6J 2.458,0.583 2.917,0.781 0.458,0.198 10 false *2 6.656,1.073 6.969,1.271 0.313,0.198 10 false 6C 6.625,1.667 6.938,1.865 0.313,0.198 10 false 6B 1.188,3.229 1.646,3.427 0.458,0.198 10 false G169 3.458,3.219 3.917,3.417 0.458,0.198 10 false G168 1.354,4.51 1.667,4.708 0.313,0.198 10 false 6C 4.521,4.5 4.833,4.698 0.313,0.198 10 false 6B 1.604,6.094 1.917,6.292 0.313,0.198 10 false 6F 3.74,6.104 4.052,6.302 0.313,0.198 10 false 6E 6.51,6.125 6.823,6.323 0.313,0.198 10 false 6H 4.844,6.135 5.198,6.292 0.354,0.156 10 false 6K 0.427,1.135 1.042,1.333 0.615,0.198 10 false 6F 0.427,2.479 0.927,2.708 0.5,0.229 10 false 6H 6.646,2.115 6.958,2.313 0.313,0.198 10 false 6A 6.344,4.521 6.656,4.719 0.313,0.198 10 false 6A 5.635,6.146 5.948,6.344 0.313,0.198 10 false 6J 2.542,2.031 3,2.229 0.458,0.198 10 false G169 5.708,3.219 6.167,3.417 0.458,0.198 10 false G167 1.406,0.229 1.865,0.427 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

Power Distribution Box Assembly

Main Body ECU (Multiplex Network Body ECU)

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

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL202409,999999,_57,_083090,_0403094,RM100000002NG0W,

Connect the power distribution box assembly connectors.

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

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition
A-26 (BECU) - Body ground	Auxiliary battery power supply	Ignition switch off	11 to 14 V
A-27 (IGR) - Body ground	IG power supply	Ignition switch ON	11 to 14 V
A-27 (IGR) - Body ground	IG power supply	Ignition switch off	Below 1 V
A-13 (GND1) - Body ground	Body ground	Always	Below 1 Ω
A-14 (GND2) - Body ground	Body ground	Always	Below 1 Ω

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

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

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition
A-15 (LIN2) - Body ground	LIN communication line	Ignition switch ON	Pulse generation
G167-7 (LSBO) - Body ground	Back door lock signal	Back door locked	Below 1 V
G167-7 (LSBO) - Body ground	Back door lock signal	Back door unlocked	11 to 14 V
G168-21 (PBDS) - Body ground	Power back door control switch signal	Power back door control switch off	Pulse generation
G168-21 (PBDS) - Body ground	Power back door control switch signal	Power back door control switch on	Below 1 V

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (for Entry Function, HV Model)

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CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (for Entry Function, Gasoline Model)

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