RM38N0EC _59 Vehicle Exterior _111844 WINDOW / GLASS _0505693 WINDOW DEFOGGER SYSTEM U

WINDOW / GLASS  WINDOW DEFOGGER SYSTEM  TERMINALS OF ECU  


CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY


B584454
4.917,0.333 5.25,0.583 0.333,0.25 3.667,0.333 4,0.583 0.333,0.25 2.25,0.333 2.583,0.583 0.333,0.25 6.385,2.083 6.719,2.333 0.333,0.25 5.188,2.083 5.521,2.333 0.333,0.25 3.75,2.083 4.083,2.333 0.333,0.25 2.219,2.083 2.552,2.333 0.333,0.25 0.76,2.083 1.094,2.333 0.333,0.25 5.021,0.385 5.333,0.583 0.313,0.198 10 false z1 6.5,2.135 6.813,2.333 0.313,0.198 10 false z1 3.719,0.396 4.031,0.594 0.313,0.198 10 false E44 5.25,2.135 5.563,2.333 0.313,0.198 10 false E44 2.313,0.385 2.625,0.583 0.313,0.198 10 false E45 3.813,2.135 4.125,2.333 0.313,0.198 10 false E45 2.281,2.135 2.594,2.333 0.313,0.198 10 false E46 0.823,2.135 1.135,2.333 0.313,0.198 10 false E47 1.594,0.167 1.969,0.406 0.375,0.24 12 false *A 0.156,1.823 0.531,2.063 0.375,0.24 12 false *B
*A w/o Seat Heater *B w/ Seat Heater


a.

Disconnect the E44 air conditioning amplifier assembly connector.


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) Terminal Description Condition Specified Condition
E44-6 (IG+) - E44-17 (GND) Power source (IG) Ignition switch ON 11 to 14 V
E44-6 (IG+) - E44-17 (GND) Power source (IG) Ignition switch off Below 1 V
E44-5 (B) - E44-17 (GND) Auxiliary battery power supply Ignition switch off*1
Always*2 		11 to 14 V
E44-17 (GND) - Body ground Ground Always Below 1 Ω

*1: for HV Model

*2: for Gasoline Model



c.

Reconnect the E44 air conditioning amplifier assembly connector.


d.

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

Terminal No. (Symbol) Terminal Description Condition Specified Condition
E44-7 (LIN1) - E44-17 (GND) LIN communication line Ignition switch ON Pulse generation



CHECK REAR WINDOW DEFOGGER SWITCH (AIR CONDITIONING CONTROL ASSEMBLY)


E389743
3.354,0.167 3.854,0.417 0.5,0.25 3.469,0.208 3.927,0.406 0.458,0.198 10 false E22

a.

Disconnect the E22 air conditioning control assembly connector.


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) Terminal Description Condition Specified Condition
E22-9 (IG+) - E22-13 (GND) Power source (IG) Ignition switch ON 11 to 14 V
E22-9 (IG+) - E22-13 (GND) Power source (IG) Ignition switch off Below 1 V
E22-13 (GND) - Body ground Ground Always Below 1 Ω


c.

Reconnect the E22 air conditioning control assembly connector.


d.

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

Terminal No. (Symbol) Terminal Description Condition Specified Condition
E22-7 (LIN1) - E22-13 (GND) LIN communication line Ignition switch ON Pulse generation



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


B704094N01
3.396,3.25 3.781,3.479 0.385,0.229 1.521,4.5 1.906,4.729 0.385,0.229 3.875,4.5 4.26,4.729 0.385,0.229 5.698,4.5 6.083,4.729 0.385,0.229 1.146,6.104 1.531,6.333 0.385,0.229 2.938,6.104 3.323,6.333 0.385,0.229 4.25,6.104 4.635,6.333 0.385,0.229 3.438,7.781 3.823,8.01 0.385,0.229 1.24,3.24 1.625,3.469 0.385,0.229 5.26,6.104 5.646,6.333 0.385,0.229 6.26,6.104 6.646,6.333 0.385,0.229 5.458,3.25 5.844,3.479 0.385,0.229 1.958,1.229 2.26,1.229 false 4.26,0.813 4.26,0.26 4.26,0.26 4.438,0.26 false 1.958,1.552 2.26,1.552 false 1.958,1.875 2.26,1.875 false 0.969,1.885 1.281,2.083 0.313,0.198 10 false 4H 1.167,2.385 1.479,2.583 0.313,0.198 10 false 4F 0.979,1.083 1.292,1.281 0.313,0.198 10 false 4E 0.979,1.594 1.292,1.792 0.313,0.198 10 false 4D 6.052,2.094 6.365,2.292 0.313,0.198 10 false 4A 2.333,1.49 2.792,1.688 0.458,0.198 10 false E36 2.333,1.813 2.792,2.01 0.458,0.198 10 false E37 4.5,0.198 4.885,0.385 0.385,0.188 10 false MB 1.333,3.292 1.802,3.5 0.469,0.208 10 false E37 3.49,3.292 3.948,3.49 0.458,0.198 10 false E36 3.052,6.146 3.51,6.344 0.458,0.198 10 false 4D 5.813,4.542 6.271,4.74 0.458,0.198 10 false 4A 3.542,7.813 4,8.01 0.458,0.198 10 false MB 6.031,1.729 6.344,1.927 0.313,0.198 10 false 4B 6.031,1.146 6.344,1.344 0.313,0.198 10 false 4C 0.969,2.146 1.281,2.344 0.313,0.198 10 false 4G 3.979,4.552 4.292,4.75 0.313,0.198 10 false 4B 1.635,4.542 1.948,4.74 0.313,0.198 10 false 4C 1.26,6.135 1.573,6.333 0.313,0.198 10 false 4E 4.365,6.146 4.677,6.344 0.313,0.198 10 false 4H 5.354,6.146 5.667,6.344 0.313,0.198 10 false 4G 6.375,6.146 6.688,6.344 0.313,0.198 10 false 4F 5.542,3.302 6,3.5 0.458,0.198 10 false E38 2.323,1.156 2.781,1.354 0.458,0.198 10 false E38

a.

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

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.

Tester Connection Terminal Description Condition Specified Condition
MB-26 (BECU) - Body ground Auxiliary battery power supply Ignition switch off*1
Always*2 		11 to 14 V
MB-27 (IGR) - Body ground Ignition power supply Ignition switch ON 11 to 14 V
MB-27 (IGR) - Body ground Ignition power supply Ignition switch off Below 1 V
MB-13 (GND1) - Body ground Ground Always Below 1 Ω
4G-1 - Body ground Rear window defogger signal (input) Ignition switch off*1
Always*2 		11 to 14 V

*1: for HV Model

*2: for Gasoline Model



d.

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

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


e.

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

Tester Connection Terminal Description Condition Specified Condition
4E-43 - Body ground Rear window defogger signal (output) Rear window defogger switch off Below 1 V
4E-43 - Body ground Rear window defogger signal (output) Rear window defogger switch on 11 to 14 V