RM38T0EC _59 Vehicle Exterior _114986 SLIDING ROOF / CONVERTIBLE _0583911 SLIDING ROOF SYSTEM(Production Date from 2023/04) U

SLIDING ROOF / CONVERTIBLE  SLIDING ROOF SYSTEM(Production Date from 2023/04)  TERMINALS OF ECU  


CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)


B493581E25
1.521,0.188 1.938,0.448 0.417,0.26 1.615,0.229 2.073,0.427 0.458,0.198 10 false T12

a.

Disconnect the T12 sliding roof ECU (sliding roof drive gear sub-assembly) connector.


b.

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

HINT:

Measure the values on the wire harness side with the connector disconnected.


Terminal No. (Symbol) Terminal Description Condition Specified Condition
T12-1 (B) - T12-2 (E) Auxiliary battery power supply Ignition switch off 11 to 14 V
T12-2 (E) - Body ground Ground Always Below 1 Ω


c.

Reconnect the M3 sliding roof ECU (sliding roof drive gear sub-assembly) connector.


d.

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

Terminal No. (Symbol) Terminal Description Condition Specified Condition
T12-10 (OPN) - T12-2 (E) Sliding roof motor open Ignition switch ON, OPEN switch on Below 1 V
Ignition switch ON, OPEN switch off 11 to 14 V
T12-8 (CLS) - T12-2 (E) Sliding roof motor close Ignition switch ON, CLOSE switch on Below 1 V
Ignition switch ON, CLOSE switch off 11 to 14 V
T12-5 (UP) - T12-2 (E) Sliding roof motor up Ignition switch ON, UP switch on Below 1 V
Ignition switch ON, UP switch off 11 to 14 V
T12-9 (DWN) - T12-2 (E) Sliding roof motor down Ignition switch ON, DOWN switch on Below 1 V
Ignition switch ON, DOWN switch off 11 to 14 V


e.

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

Terminal No. (Symbol) Terminal Description Condition Specified Condition
T12-7 (MPX1) - Body ground LIN communication line Ignition switch ON Pulse generation



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


B657917E04
1.208,3.229 1.646,3.49 0.438,0.26 3.49,3.219 3.927,3.469 0.438,0.25 5.802,3.208 6.24,3.458 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 5.302,6.135 5.74,6.385 0.438,0.25 4.271,6.135 4.708,6.385 0.438,0.25 1.656,1.188 1.958,1.188 false 1.667,1.5 1.969,1.5 false 1.667,1.823 1.969,1.823 false 4.042,0.802 4.042,0.323 4.042,0.323 4.229,0.323 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 2.021,1.104 2.333,1.302 0.313,0.198 10 false I86 2.021,1.427 2.333,1.625 0.313,0.198 10 false I85 2.021,1.76 2.333,1.958 0.313,0.198 10 false I84 0.875,1.083 1.188,1.281 0.313,0.198 10 false 4A 0.875,1.531 1.188,1.729 0.313,0.198 10 false 4B 0.875,1.792 1.188,1.99 0.313,0.198 10 false 4C 5.854,1.146 6.167,1.344 0.313,0.198 10 false 4G 5.854,1.76 6.167,1.958 0.313,0.198 10 false 4F 1.323,3.281 1.635,3.479 0.313,0.198 10 false I84 3.615,3.26 3.927,3.458 0.313,0.198 10 false I85 5.927,3.26 6.24,3.458 0.313,0.198 10 false I86 1.906,4.635 2.219,4.833 0.313,0.198 10 false 4F 1.344,6.208 1.656,6.406 0.313,0.198 10 false 4A 3.229,6.167 3.542,6.365 0.313,0.198 10 false 4B 4.406,6.198 4.719,6.396 0.313,0.198 10 false 4C 5.438,6.198 5.75,6.396 0.313,0.198 10 false 4D 5.51,4.625 5.823,4.823 0.313,0.198 10 false 4G 0.885,2.271 1.198,2.469 0.313,0.198 10 false 4E 0.885,2.031 1.198,2.229 0.313,0.198 10 false 4D 6.427,6.188 6.74,6.385 0.313,0.198 10 false 4E

a.

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


b.

Reconnect the power distribution box assembly connectors.


c.

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

HINT:

Measure the values on the wire harness side with the connectors connected.


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 IG power supply Ignition switch ON 11 to 14 V
Ignition switch off Below 1 V


d.

Reconnect the MB main body ECU (multiplex network body ECU) connector.


e.

Check for pulses according to the value(s) in the table below.

Terminal No. (Symbol) Terminal Description Condition Specified Condition
4A-22 (FRCY) - Body ground Front door courtesy light switch (for RH) input Front door RH open → closed Below 1 V → 11 to 14 V or pulse output (maximum 14 V)*
4A-23 (FLCY) - Body ground Front door courtesy light switch (for LH) input Front door LH open → closed Below 1 V → 11 to 14 V or pulse output (maximum 14 V)*
4F-15 - Body ground LIN communication line Ignition switch ON Pulse generation

*: Differs depending on the vehicle model