NETWORKING  LIN COMMUNICATION SYSTEM  TERMINALS OF ECU  


CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


a.

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

B332798C88
1.76,3.042 2.167,3.26 0.406,0.219 5.438,3.042 5.844,3.26 0.406,0.219 1.76,4.594 2.167,4.813 0.406,0.219 5.49,4.594 5.896,4.813 0.406,0.219 1.427,6.292 1.833,6.51 0.406,0.219 5.042,6.292 5.448,6.51 0.406,0.219 3.281,7.938 3.688,8.156 0.406,0.219 3.688,1.427 4.031,1.427 false 3.219,1.427 3.563,1.427 false 3.604,0.698 3.604,0.417 3.604,0.417 3.792,0.417 false 5.146,1.104 5.146,0.271 5.146,0.271 5.344,0.271 false 0.177,0.146 0.49,0.406 0.313,0.26 12 false *A 0.719,1.885 1.031,2.083 0.313,0.198 10 false 3B 1.448,0.823 1.76,1.021 0.313,0.198 10 false 3D 1.104,0.823 1.417,1.021 0.313,0.198 10 false 3E 0.771,0.823 1.083,1.021 0.313,0.198 10 false 3A 1.813,0.823 2.125,1.021 0.313,0.198 10 false 3C 4.073,1.344 4.417,1.583 0.344,0.24 10 false E31 3.063,1.344 3.292,1.552 0.229,0.208 10 false *a 3.854,0.333 4.083,0.542 0.229,0.208 10 false *1 5.406,0.188 5.74,0.396 0.333,0.208 10 false MB 1.844,3.073 2.188,3.313 0.344,0.24 10 false E31 5.552,3.073 5.896,3.313 0.344,0.24 10 false 3B 1.875,4.625 2.219,4.865 0.344,0.24 10 false 3A 5.615,4.625 5.958,4.865 0.344,0.24 10 false 3E 1.552,6.323 1.896,6.563 0.344,0.24 10 false 3D 5.167,6.323 5.51,6.563 0.344,0.24 10 false 3C 3.385,7.969 3.729,8.208 0.344,0.24 10 false MB
*A Main Body ECU (Multiplex Network Body ECU) with 1 Connector - -
*1 Main Body ECU (Multiplex Network Body ECU) - -
*a 1 Connector - -


B332794C91
1.167,3 1.583,3.25 0.417,0.25 4.135,3 4.552,3.25 0.417,0.25 6.333,3 6.75,3.25 0.417,0.25 1.583,4.583 2,4.833 0.417,0.25 5.5,4.583 5.917,4.833 0.417,0.25 1.417,6.25 1.833,6.5 0.417,0.25 5.083,6.25 5.5,6.5 0.417,0.25 3.333,7.917 3.75,8.167 0.417,0.25 3.688,1.427 4,1.427 false 3.688,1.927 4,1.927 false 5.146,1.104 5.146,0.313 5.146,0.313 5.333,0.313 false 3.167,2.396 3.167,1.427 3.167,1.427 3.552,1.427 false 3.625,0.698 3.625,0.333 3.625,0.333 3.833,0.333 false 3.177,1.927 3.552,1.927 false 0.719,1.896 0.948,2.125 0.229,0.229 10 false 3B 1.115,0.865 1.344,1.094 0.229,0.229 10 false 3E 0.771,0.865 1,1.094 0.229,0.229 10 false 3A 1.458,0.865 1.688,1.094 0.229,0.229 10 false 3D 1.823,0.865 2.052,1.094 0.229,0.229 10 false 3C 4.073,1.354 4.406,1.604 0.333,0.25 10 false E31 4.073,1.854 4.625,2.083 0.552,0.229 10 false E107 5.385,0.24 5.688,0.448 0.302,0.208 10 false MB 1.219,3.052 1.635,3.229 0.417,0.177 10 false E107 4.219,3.052 4.552,3.302 0.333,0.25 10 false E31 6.448,3.052 6.781,3.302 0.333,0.25 10 false 3B 1.698,4.635 2.031,4.885 0.333,0.25 10 false 3A 5.615,4.635 5.948,4.885 0.333,0.25 10 false 3E 1.531,6.302 1.865,6.552 0.333,0.25 10 false 3D 5.188,6.302 5.521,6.552 0.333,0.25 10 false 3C 3.427,7.958 3.76,8.208 0.333,0.25 10 false MB 0.167,0.167 0.615,0.479 0.448,0.313 12 false *A 3.906,0.26 4.24,0.51 0.333,0.25 10 false *1 3.094,2.469 3.427,2.719 0.333,0.25 10 false *a
*A Main Body ECU (Multiplex Network Body ECU) with 2 Connectors - -
*1 Main Body ECU (Multiplex Network Body ECU) - -
*a 2 Connectors - -



b.

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 disconnected.


Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
MB-11 (GND1) - Body ground - Ground Always Below 1 Ω
MB-30 (BECU) - Body ground - Battery power supply Always 11 to 14 V
MB-29 (ACC) - Body ground - ACC power supply Ignition switch ACC 11 to 14 V
MB-29 (ACC) - Body ground - ACC power supply Ignition switch off Below 1 V
MB-32 (IG) - Body ground - IG power supply Ignition switch ON 11 to 14 V
MB-32 (IG) - Body ground - IG power supply Ignition switch off Below 1 V


c.

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


d.

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

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
3C-44 (LIN2) - Body ground V - Body ground LIN communication line Ignition switch ON Pulse generation



CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door) (w/ Power Window System)


a.

Disconnect the G12 power window regulator motor assembly (for driver door) connector.

B286202N11
2.26,0.781 2.635,1.01 0.375,0.229 2.344,0.813 2.677,1.125 0.333,0.313 10 false G12


b.

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 connector disconnected.


Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
G12-2 (B) - Body ground GR - Body ground Battery power supply Always 11 to 14 V
G12-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω


c.

Reconnect the G12 power window regulator motor assembly (for driver door) connector.


d.

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

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
G12-9 (LIN) - Body ground R - Body ground LIN communication line Ignition switch ON Pulse generation



CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) (w/ Sliding Roof System)


a.

Disconnect the O16 sliding roof ECU (sliding roof drive gear sub-assembly) connector.

B270994N42
3.406,0.208 3.885,0.438 0.479,0.229 3.5,0.24 3.896,0.5 0.396,0.26 10 false O16


b.

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 connector disconnected.


Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
O16-8 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
O16-12 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω


c.

Reconnect the O16 sliding roof ECU (sliding roof drive gear sub-assembly) connector.


d.

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

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
O16-11 (MPX1) - Body ground GR - Body ground LIN communication line Ignition switch ON Pulse generation



CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Smart Key System)


a.

Disconnect the E108 certification ECU (smart key ECU assembly) connector.

B483018N01
1.813,0.615 2.229,0.833 0.417,0.219 3.198,0.615 3.615,0.833 0.417,0.219 4.729,0.615 5.146,0.833 0.417,0.219 1.854,0.635 2.469,0.833 0.615,0.198 10 false E108 3.24,0.646 3.854,0.844 0.615,0.198 10 false E109 4.781,0.635 5.396,0.833 0.615,0.198 10 false E110


b.

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 connector disconnected.


Tester Connection Wiring Color Terminal Description Condition Specified Condition
E108-11 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
E108-2 (+B) - Body ground L - Body ground +B power supply Always 11 to 14 V

If the result is not as specified, there may be a malfunction in the wire harness.


c.

Reconnect the E108 certification ECU (smart key ECU assembly) connector.


d.

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

Tester Connection Wiring Color Terminal Description Condition Specified Condition
E110-17 (LIN) - Body ground V - Body ground LIN communication line Ignition switch ON Pulse generation

If the result is not as specified, the certification ECU (smart key ECU assembly) may be malfunctioning.



CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) (w/ Smart Key System)


a.

Disconnect the E112 steering lock ECU (steering lock actuator assembly) connector.

B483019N01
3.417,0.313 3.854,0.542 0.438,0.229 3.49,0.344 4.104,0.542 0.615,0.198 10 false E112


b.

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

Tester Connection Wiring Color Terminal Description Condition Specified Condition
E112-1 (GND) - Body ground W-B Body ground Ground Always Below 1 Ω
E112-7 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V

If the result is not as specified, there may be a malfunction on the wire harness side.


c.

Reconnect the E112 steering lock ECU (steering lock actuator assembly) connector.


d.

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

Tester Connection Wiring Color Terminal Description Condition Specified Condition
E112-5 (LIN) - Body ground V - Body ground LIN communication line Ignition switch ON Pulse generation

If the result is not as specified, the steering lock ECU (steering lock actuator assembly) may be malfunctioning.



CHECK ID CODE BOX (IMMOBILISER CODE ECU) (w/ Smart Key System)


a.

Disconnect the E106 ID code box (immobiliser code ECU) connector.

B483020N01
3.354,0.198 3.771,0.427 0.417,0.229 3.417,0.219 4.031,0.417 0.615,0.198 10 false E106


b.

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 connector disconnected.


Tester Connection Wiring Color Terminal Description Condition Specified Condition
E106-5 (GND) - Body ground BR - Body ground Ground Always Below 1 Ω
E106-1 (+B) - Body ground W - Body ground +B power supply Always 11 to 14 V

If the result is not as specified, there may be a malfunction in the wire harness.


c.

Reconnect the E106 ID code box (immobiliser code ECU) connector.


d.

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

Tester Connection Wiring Color Terminal Description Condition Specified Condition
E106-2 (LIN1) - Body ground V - Body ground LIN communication line Ignition switch ON Pulse generation

If the result is not as specified, the ID code box (immobiliser code ECU) may be malfunctioning.