RM38N0EC _59 Vehicle Exterior _111837 MIRROR (EXT) _0510739 POWER MIRROR CONTROL SYSTEM(w/o Memory) J

MIRROR (EXT)  POWER MIRROR CONTROL SYSTEM(w/o Memory)  Mirror Heater does not Operate with Rear Defogger Switch  


DESCRIPTION

When the mirror heater switch (rear window defogger switch) is operated, the MIR HTR relay drive request signal is sent to the air conditioning amplifier assembly and then to main body ECU (multiplex network body ECU) via CAN communication. When the main body ECU (multiplex network body ECU) receives the MIR HTR relay drive request signal, it sends a mirror heater operation signal to the power distribution box assembly.

Based on this signal, the power distribution box assembly operates the mirror heaters.


WIRING DIAGRAM

B588263E06
2.781,1.208 4.344,1.719 1.563,0.51 10 false Air Conditioning Amplifier Assembly 4.719,1.198 7.125,1.844 2.406,0.646 10 false Rear Defogger Switch (Air Conditioning Control Assembly) 2.594,2.104 3.958,2.375 1.365,0.271 10 false to RR DEF Relay 2.75,3 3.229,3.375 0.479,0.375 10 false IC 3.323,3.458 4.104,3.802 0.781,0.344 10 false MIR HTR 5,2.802 5.479,3.177 0.479,0.375 10 false 4G 5.01,3.177 5.49,3.552 0.479,0.375 10 false 4B 5.031,2.604 5.51,2.979 0.479,0.375 10 false 1 5.042,2.99 5.521,3.365 0.479,0.375 10 false 2 5.438,2.927 5.99,3.49 0.552,0.563 10 false INP STD NO. 1-1 6.323,2.781 7.156,3.24 0.833,0.458 10 false from Auxiliary Battery 2.469,4.083 5.344,4.563 2.875,0.479 10 false Power Distribution Box Assembly 0.49,4.458 2.156,5.063 1.667,0.604 10 false Main Body ECU (Multiplex Network Body ECU) 1.031,5.802 1.458,6.052 0.427,0.25 10 false 8 2.677,5.802 3.104,6.052 0.427,0.25 10 false 2 1.448,6.26 2.5,6.552 1.052,0.292 10 false Outer Mirror RH 1.219,6.646 2.271,6.938 1.052,0.292 10 false G14*1, G23*2 1.219,6.823 2.646,7.313 1.427,0.49 10 false Outer Rear View Mirror Assembly RH 4.479,5.802 4.906,6.052 0.427,0.25 10 false 8 6.104,5.802 6.531,6.052 0.427,0.25 10 false 2 4.875,6.271 5.927,6.563 1.052,0.292 10 false Outer Mirror LH 4.646,6.635 5.698,6.927 1.052,0.292 10 false G16*1, G24*2 4.656,6.802 6.073,7.26 1.417,0.458 10 false Outer Rear View Mirror Assembly LH 0.604,8.365 2.458,8.833 1.854,0.469 10 false : CAN Communication Line 2.969,8.365 4.823,8.833 1.854,0.469 10 false : LIN Communication Line 5.281,8.365 7.063,8.677 1.781,0.313 10 false : CXPI Communication Line 1.323,5.813 1.479,6.01 0.156,0.198 10 false - 2.458,5.833 2.615,6.031 0.156,0.198 10 false + 4.771,5.813 4.927,6.01 0.156,0.198 10 false - 5.875,5.823 6.031,6.021 0.156,0.198 10 false + 0.271,7.563 4.854,7.76 4.583,0.198 10 false *1: w/o Door Mirror Foot Light 0.271,7.927 4.854,8.125 4.583,0.198 10 false *2: w/ Door Mirror Foot Light

CAUTION / NOTICE / HINT

NOTICE:
·

Inspect the fuses for circuits related to this system before performing the following procedure.

·

The power mirror control system uses the CAN communication system, LIN communication system and CXPI communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power mirror control system after confirming that the communication system is functioning properly.

Click hereVehicle Exterior>MIRROR (EXT)>POWER MIRROR CONTROL SYSTEM (w/o Memory)>HOW TO PROCEED WITH TROUBLESHOOTING



PROCEDURE

1.CHECK VEHICLE CONDITION
a.

Check vehicle condition.


Result:
Result Proceed to
Both mirror heaters do not operate A
LH side mirror heater does not operate B
RH side mirror heater does not operate C



A

2.CHECK WINDOW DEFOGGER SYSTEM

B

7.CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH - POWER DISTRIBUTION BOX ASSEMBLY AND BODY GROUND)

C

9.CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY RH - POWER DISTRIBUTION BOX ASSEMBLY AND BODY GROUND)
2.CHECK WINDOW DEFOGGER SYSTEM
a.

Check the window defogger system operation.

Click hereVehicle Exterior>WINDOW / GLASS>WINDOW DEFOGGER SYSTEM>OPERATION CHECK

OK:

The window defogger system operates normally.



Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - POWER SOURCE)

NG

GO TO WINDOW DEFOGGER SYSTEM

Click hereVehicle Exterior>WINDOW / GLASS>WINDOW DEFOGGER SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING


3.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - POWER SOURCE)
a.

Disconnect the 4G power distribution box assembly connector.


b.

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


Standard Voltage:
Tester Connection Condition Specified Condition
4G-1 - Body Ground Ignition switch off 11 to 14 V


Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH/RH - POWER DISTRIBUTION BOX ASSEMBLY AND BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH/RH - POWER DISTRIBUTION BOX ASSEMBLY AND BODY GROUND)
a.

Disconnect the G16*1 or G24*2 outer rear view mirror assembly LH connector.

*1: w/o Door Mirror Foot Light

*2: w/ Door Mirror Foot Light



b.

Disconnect the G14*1 or G23*2 outer rear view mirror assembly RH connector.

*1: w/o Door Mirror Foot Light

*2: w/ Door Mirror Foot Light



c.

Disconnect the 4B power distribution box assembly connector.


d.

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

Standard Resistance:
w/o Door Mirror Foot Light
Tester Connection Condition Specified Condition

Click Location & Routing(G16,G14)Location & Routing

Click Connector(G16)Body>Front Door Wire RH / Front Door Wire LH>Outer Rear View Mirror Assembly LH

Click Connector(G14)Body>Front Door Wire RH / Front Door Wire LH>Outer Rear View Mirror Assembly RH

G16-2 (+) - 4B-2 Always Below 1 Ω
G16-8 (-) - Body ground Always Below 1 Ω
G14-2 (+) - 4B-2 Always Below 1 Ω
G14-8 (-) - Body ground Always Below 1 Ω
G16-2 (+), G14-2 (+) or 4B-2 - Body ground Always 10 kΩ or higher

w/ Door Mirror Foot Light
Tester Connection Condition Specified Condition

Click Location & Routing(G24,G23)Location & Routing

Click Connector(G24)Body>Front Door Wire RH / Front Door Wire LH>Outer Rear View Mirror Assembly LH

Click Connector(G23)Body>Front Door Wire RH / Front Door Wire LH>Outer Rear View Mirror Assembly RH

G24-2 (+) - 4B-2 Always Below 1 Ω
G24-8 (-) - Body ground Always Below 1 Ω
G23-2 (+) - 4B-2 Always Below 1 Ω
G23-8 (-) - Body ground Always Below 1 Ω
G24-2 (+), G23-2 (+) or 4B-2 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

5.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

Click hereVehicle Exterior>MIRROR (EXT)>OUTER REAR VIEW MIRROR>INSPECTION

Result:
Proceed to
OK
NG



OK

6.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH

NG

8.INSPECT OUTER MIRROR LH
7.CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH - POWER DISTRIBUTION BOX ASSEMBLY AND BODY GROUND)
a.

Disconnect the G16*1 or G24*2 outer rear view mirror assembly LH connector.

*1: w/o Door Mirror Foot Light

*2: w/ Door Mirror Foot Light



b.

Disconnect the 4B power distribution box assembly connector.


c.

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

Standard Resistance:
w/o Door Mirror Foot Light
Tester Connection Condition Specified Condition

Click Location & Routing(G16)Location & Routing

Click Connector(G16)Body>Front Door Wire RH / Front Door Wire LH>Outer Rear View Mirror Assembly LH

G16-2 (+) - 4B-2 Always Below 1 Ω
G16-8 (-) - Body Ground Always Below 1 Ω

w/ Door Mirror Foot Light
Tester Connection Condition Specified Condition

Click Location & Routing(G24)Location & Routing

Click Connector(G24)Body>Front Door Wire RH / Front Door Wire LH>Outer Rear View Mirror Assembly LH

G24-2 (+) - 4B-2 Always Below 1 Ω
G24-8 (-) - Body Ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

8.INSPECT OUTER MIRROR LH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY RH - POWER DISTRIBUTION BOX ASSEMBLY AND BODY GROUND)
a.

Disconnect the G14*1 or G23*2 outer rear view mirror assembly RH connector.

*1: w/o Door Mirror Foot Light

*2: w/ Door Mirror Foot Light



b.

Disconnect the 4B power distribution box assembly connector.


c.

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

Standard Resistance:
w/o Door Mirror Foot Light
Tester Connection Condition Specified Condition

Click Location & Routing(G14)Location & Routing

Click Connector(G14)Body>Front Door Wire RH / Front Door Wire LH>Outer Rear View Mirror Assembly RH

G14-2 (+) - 4B-2 Always Below 1 Ω
G14-8 (-) - Body Ground Always Below 1 Ω

w/ Door Mirror Foot Light
Tester Connection Condition Specified Condition

Click Location & Routing(G23)Location & Routing

Click Connector(G23)Body>Front Door Wire RH / Front Door Wire LH>Outer Rear View Mirror Assembly RH

G23-2 (+) - 4B-2 Always Below 1 Ω
G23-8 (-) - Body Ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

10.INSPECT OUTER MIRROR RH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR