RM38T0EC _59 Vehicle Exterior _112292 MIRROR (EXT) _0502811 POWER MIRROR CONTROL SYSTEM J

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


DESCRIPTION

When the mirror heater switch (rear window defogger switch) is operated, the RR DEF 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 RR DEF 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 operate the mirror heaters.

WIRING DIAGRAM

B626151E02
4.583,2.917 5.365,3.229 0.781,0.313 10 false MIR HTR 3.073,7.385 4.448,7.583 1.375,0.198 10 false Outer Mirror RH 3,6.073 5.365,6.5 2.365,0.427 10 false Outer Rear View Mirror Assembly LH 4.781,1.188 6.927,1.854 2.146,0.667 10 false Rear Window Defogger Switch (Air Conditioning Control Assembly) 2.75,1.188 4.344,1.802 1.594,0.615 10 false Air Conditioning Amplifier Assembly 0.583,8.083 2.677,8.354 2.094,0.271 10 false : LIN Communication Line 5.583,6.604 5.74,6.802 0.156,0.198 10 false + 5.594,4.74 5.75,4.938 0.156,0.198 10 false + 3.385,3.031 4.5,3.24 1.115,0.208 10 false RR DEF 2.75,2.5 3.865,2.708 1.115,0.208 10 false IC 1.396,2.563 2.51,2.771 1.115,0.208 10 false CXPI 0.396,4.01 2.052,4.948 1.656,0.938 10 false Main Body ECU (Multiplex Network Body ECU) 2.771,3.656 5.792,4.021 3.021,0.365 10 false Power Distribution Box Assembly 0.583,8.438 2.427,8.74 1.844,0.302 10 false : CXPI Communication Line 1.854,2.552 2.25,2.792 0.396,0.24 10 false MB 1.865,2.354 2.26,2.594 0.396,0.24 10 false 22 5.521,2.74 5.917,2.979 0.396,0.24 10 false 8B 5.552,2.542 5.948,2.781 0.396,0.24 10 false 2 5.813,4.729 5.969,4.927 0.156,0.198 10 false 1 3,7.771 3.281,7.979 0.281,0.208 10 false K17 3,5.917 3.302,6.115 0.302,0.198 10 false L17 0.583,7.729 2.938,8.042 2.354,0.313 10 false : CAN Communication Line 4.385,2.208 5.5,2.417 1.115,0.208 10 false +B1 3.083,5.531 4.458,5.729 1.375,0.198 10 false Outer Mirror LH 3,7.938 5.365,8.365 2.365,0.427 10 false Outer Rear View Mirror Assembly RH 5.802,5.083 6.083,5.281 0.281,0.198 10 false 2 5.802,6.979 6.083,7.177 0.281,0.198 10 false 2 5.802,6.604 5.958,6.802 0.156,0.198 10 false 1 5.604,5.104 5.76,5.302 0.156,0.198 10 false - 5.604,6.969 5.76,7.167 0.156,0.198 10 false -

CAUTION / NOTICE / HINT

NOTICE:
·

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

·

If the auxiliary battery voltage becomes low, auxiliary battery load control will operate in order to ensure sufficient power is supplied to the power steering system. In this case, the window defogger system may not operate.

·

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>HOW TO PROCEED WITH TROUBLESHOOTING



PROCEDURE

1.CHECK VEHICLE CONDITION
a.

Check vehicle condition.


Result:
Result Proceed to
Both mirror heater does 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

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

C

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

NG

GO TO WINDOW DEFOGGER SYSTEM

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


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

Disconnect the L17 outer rear view mirror assembly LH connector.


b.

Disconnect the K17 outer rear view mirror assembly RH connector.


c.

Disconnect the 8B power distribution box assembly connector.


d.

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

Standard Resistance:
LH Side
Tester Connection Condition Specified Condition
L17-1 (+) - 8B-2 Always Below 1 Ω
L17-2 (-) - Body Ground Always Below 1 Ω
L17-1 (+) or 8B-2 - Body ground Always 10 kΩ or higher

RH Side
Tester Connection Condition Specified Condition
K17-1 (+) - 8B-2 Always Below 1 Ω
K17-2 (-) - Body Ground Always Below 1 Ω
K17-1 (+) or 8B-2 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

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

Result:
Proceed to
OK
NG



OK

5.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH

NG

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

Disconnect the L17 outer rear view mirror assembly LH connector.


b.

Disconnect the 8B power distribution box assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
L17-1 (+) - 8B-2 Always Below 1 Ω
L17-2 (E) - Body Ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

7.INSPECT OUTER MIRROR LH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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

Disconnect the K17 outer rear view mirror assembly RH connector.


b.

Disconnect the 8B power distribution box assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
K17-1 (+) - 8B-2 Always Below 1 Ω
K17-2 (E) - Body Ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

9.INSPECT OUTER MIRROR RH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR