RM38N0EC _59 Vehicle Exterior _111837 MIRROR (EXT) _0509771 POWER MIRROR CONTROL SYSTEM(w/ Memory) U

MIRROR (EXT)  POWER MIRROR CONTROL SYSTEM(w/ Memory)  TERMINALS OF ECU  


CHECK OUTER MIRROR CONTROL ECU ASSEMBLY (DRIVER DOOR)


B613242
2.406,0.104 2.833,0.406 0.427,0.302 4.438,0.104 4.875,0.396 0.438,0.292 2.5,0.167 2.958,0.365 0.458,0.198 10 false G21 4.531,0.167 4.844,0.365 0.313,0.198 10 false G22

a.

Disconnect the G22 outer mirror control ECU assembly (driver door) 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
G22-14 (BDR) - Body ground +B power supply Ignition switch off 11 to 14 V
G22-6 (CPUB) - Body ground +B power supply Ignition switch off 11 to 14 V
G22-5 (SIG) - Body ground Ignition power supply Ignition switch off → ON Below 1 V → 11 to 14 V
G22-7 (GND) - Body ground Ground Always Below 1 Ω


c.

Reconnect the G22 outer mirror control ECU assembly (driver door) connector.


d.

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

Terminal No. (Symbol) Terminal Description Condition Specified Condition
G21-3 (MR+) - Body ground Power retract mirror motor drive voltage Outer rear view mirror assembly (driver door) being retracted 11 to 14 V
Outer rear view mirror assembly (driver door) stopped Below 1 V
G21-11 (MR-) - Body ground Power retract mirror motor drive voltage Outer rear view mirror assembly (driver door) returning 11 to 14 V
Outer rear view mirror assembly (driver door) stopped Below 1 V
G21-1 (LMVR) - G21-10 (LM+R) Vertical mirror motor drive voltage Driver door mirror surface moving upward → stopped 11 to 14 V → Below 1 V
G21-10 (LM+R) - G21-1 (LMVR) Vertical mirror motor drive voltage Driver door mirror surface moving downward → stopped 11 to 14 V → Below 1 V
G21-10 (LM+R) - G21-9 (LMHR) Horizontal mirror motor drive voltage Driver door mirror surface moving right → stopped 11 to 14 V → Below 1 V
G21-9 (LMHR) - G21-10 (LM+R) Horizontal mirror motor drive voltage Driver door mirror surface moving left → stopped 11 to 14 V → Below 1 V
G21-5 (LVC) - G21-14 (LE1) Mirror position sensor power supply Ignition switch ON 4.55 to 5.45 V
Ignition switch off Below 1 V
G21-6 (VSSR) - G22-7 (GND) Mirror position sensor signal Ignition switch ON 0 to 5 V
G21-13 (HSSR) - G22-7 (GND) Mirror position sensor signal Ignition switch ON 0 to 5 V
G22-3 (M2) - G22-7 (GND) M2 switch signal for seat memory switch M2 switch on Below 1 V
M2 switch off 11 to 14 V
G22-2 (M1) - G22-7 (GND) M1 switch signal for seat memory switch M1 switch on Below 1 V
M1 switch off 11 to 14 V
G22-1 (MM) - G22-7 (GND) SET switch signal for seat memory switch SET switch on Below 1 V
SET switch off 11 to 14 V
G21-4 (HTR+) - G21-12 (HTR-) Mirror heater relay drive voltage Mirror heater switch (rear window defogger switch) on 11 to 14 V



CHECK OUTER MIRROR CONTROL ECU ASSEMBLY (FRONT PASSENGER DOOR)


B613242
2.406,0.104 2.833,0.406 0.427,0.302 4.438,0.104 4.875,0.396 0.438,0.292 2.5,0.167 2.958,0.365 0.458,0.198 10 false G19 4.542,0.156 4.854,0.354 0.313,0.198 10 false G20

a.

Disconnect the G20 outer mirror control ECU assembly (front passenger door) 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
G20-14 (BDR) - Body ground +B power supply Ignition switch off 11 to 14 V
G20-6 (CPUB) - Body ground +B power supply Ignition switch off 11 to 14 V
G20-5 (SIG) - Body ground Ignition power supply Ignition switch off → ON Below 1 V → 11 to 14 V
G20-7 (GND) - Body ground Ground Always Below 1 Ω


c.

Reconnect the G20 outer mirror control ECU assembly (front passenger door) connector.


d.

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

Terminal No. (Symbol) Terminal Description Condition Specified Condition
G19-3 (MR+) - Body ground Power retract mirror motor drive voltage Outer rear view mirror assembly (front passenger door) being retracted 11 to 14 V
Outer rear view mirror assembly (front passenger door) stopped Below 1 V
G19-11 (MR-) - Body ground Power retract mirror motor drive voltage Outer rear view mirror assembly (front passenger door) returning 11 to 14 V
Outer rear view mirror assembly (front passenger door) stopped Below 1 V
G19-1 (RMVR) - G19-10 (RM+R) Vertical mirror motor drive voltage Front passenger door mirror surface moving upward → stopped 11 to 14 V → Below 1 V
G19-10 (RM+R) - G19-1 (RMVR) Vertical mirror motor drive voltage Front passenger door mirror surface moving downward → stopped 11 to 14 V → Below 1 V
G19-10 (RM+R) - G19-9 (RMHR) Horizontal mirror motor drive voltage Front passenger door mirror surface moving right → stopped 11 to 14 V → Below 1 V
G19-9 (RMHR) - G19-10 (RM+R) Horizontal mirror motor drive voltage Front passenger door mirror surface moving left → stopped 11 to 14 V → Below 1 V
G19-5 (RVC) - G19-14 (RE1) Mirror position sensor power supply Ignition switch ON 4.55 to 5.45 V
Ignition switch off Below 1 V
G19-6 (VSSR) - G20-7 (GND) Mirror position sensor signal Ignition switch ON 0 to 5 V
G19-13 (HSSR) - G20-7 (GND) Mirror position sensor signal Ignition switch ON 0 to 5 V
G19-4 (HTR+) - G19-12 (HTR-) Mirror heater relay drive voltage Mirror heater switch (rear window defogger switch) on 11 to 14 V



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.

Disconnect the power distribution box assembly and main body ECU (multiplex network body ECU) connectors.

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


b.

Reconnect the power distribution box assembly connectors.


c.

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

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


d.

Connect the main body ECU (multiplex network body ECU) connectors.


e.

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

Tester Connection Terminal Description Condition Specified Condition
E38-22 (MIRB) - E38-21 (MIRE) Mirror adjust switch signal
·

Ignition switch ACC

·

Mirror select switch L or R

·

Mirror adjust switch up


Below 1.7 V
·

Ignition switch ACC

·

Mirror select switch L or R

·

Mirror adjust switch right


Below 2.7 V
·

Ignition switch ACC

·

Mirror select switch L or R

·

Mirror adjust switch down


Below 3.5 V
·

Ignition switch ACC

·

Mirror select switch L or R

·

Mirror adjust switch left


Below 4 V
·

Ignition switch ACC

·

Mirror select switch L or R

·

Mirror adjust switch off


3.8 to 5 V
E38-20 (MIRS) - E38-21 (MIRE) Mirror select switch signal
·

Ignition switch ACC

·

Mirror select switch L


Below 2 V
·

Ignition switch ACC

·

Mirror select switch R


Below 1 V
·

Ignition switch ACC

·

Mirror select switch off


3.8 to 5 V
E36-27 (RET) - E38-21 (MIRE) Retractable outer mirror switch signal
·

Ignition switch ACC

·

Retractable outer mirror switch on outer mirror switch assembly not in retract position.


11 to 14 V
·

Ignition switch ACC

·

Retractable outer mirror switch on outer mirror switch assembly in retract position.


Below 1 V
E36-26 (AMR) - E38-21 (MIRE) Retractable outer mirror switch signal
·

Ignition switch ACC

·

Retractable outer mirror switch on outer mirror switch assembly not in auto retract position.


11 to 14 V
·

Ignition switch ACC

·

Retractable outer mirror switch on outer mirror switch assembly in auto retract position.


Below 1 V