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)  Power Retractable Mirrors do not Operate with Power Retract Mirror Switch  


DESCRIPTION

When the outer mirror switch assembly is operated, the mirror retract/return signal is sent to the main body ECU (multiplex network body ECU) and then to the power distribution box assembly via CXPI communication.

The power distribution box assembly retracts or returns the outer rear view mirror assemblies based on the signal.

WIRING DIAGRAM

B581789E08
2.073,2.531 4.219,2.729 2.146,0.198 10 false Outer Mirror Switch Assembly 1.969,1.927 4.115,2.125 2.146,0.198 10 false Retractable Outer Mirror Switch 4.021,0.938 4.615,1.271 0.594,0.333 10 false MAT 5.688,1.052 6.281,1.385 0.594,0.333 10 false AMR 5.688,1.552 6.281,1.885 0.594,0.333 10 false RET 5.354,0.854 5.948,1.188 0.594,0.333 10 false 26 5.354,1.365 5.948,1.698 0.594,0.333 10 false 27 5.333,1.042 5.927,1.375 0.594,0.333 10 false E36 4.104,1.448 4.698,1.781 0.594,0.333 10 false MR 1.688,1.427 2.281,1.76 0.594,0.333 10 false E 1.448,1.427 2.042,1.76 0.594,0.333 10 false 8 4.438,0.927 5.031,1.26 0.594,0.333 10 false 9 4.427,1.438 5.021,1.771 0.594,0.333 10 false 10 3.26,4.896 4.083,5.146 0.823,0.25 10 false MIR RLY+ 3.229,6.615 4.052,6.865 0.823,0.25 10 false MIR RLY- 4.375,4.979 5.198,5.229 0.823,0.25 10 false IC 2.052,4.135 2.875,4.385 0.823,0.25 10 false 4C 2.042,5.833 2.865,6.083 0.823,0.25 10 false 4C 2.063,3.927 2.885,4.177 0.823,0.25 10 false 10 2.052,5.635 2.875,5.885 0.823,0.25 10 false 21 0.698,8.375 2.625,8.583 1.927,0.208 10 false : CXPI Communication Line 5.458,7.396 7.115,7.979 1.656,0.583 10 false Main Body ECU (Multiplex Network Body ECU) 2.344,7.396 5.073,7.74 2.729,0.344 10 false Power Distribution Box Assembly 0.698,7.479 1.521,7.729 0.823,0.25 10 false A 1.25,7.469 2.073,7.719 0.823,0.25 10 false B 2.073,2.354 4.219,2.552 2.146,0.198 10 false I8 5.333,1.552 5.927,1.885 0.594,0.333 10 false E36 2.052,3.625 2.875,3.875 0.823,0.25 10 false 4G 0.906,3.802 2.094,4 1.188,0.198 10 false INP STD NO. 1-1 0.052,3.51 0.927,3.865 0.875,0.354 10 false from Auxiliary Battery 2.104,3.417 2.927,3.667 0.823,0.25 10 false 1

B588264E05
2.75,2.417 5.125,2.667 2.375,0.25 10 false Outer Rear View Mirror Assembly LH 2.75,3.917 5.25,4.313 2.5,0.396 10 false Outer Rear View Mirror Assembly RH 0.542,0.323 0.979,0.625 0.438,0.302 10 false A 1.083,0.313 1.521,0.615 0.438,0.302 10 false B 2.76,1.698 3.198,2 0.438,0.302 10 false 9 4.135,1.698 4.573,2 0.438,0.302 10 false 3 2.969,1.698 3.406,2 0.438,0.302 10 false MF 3.802,1.688 4.24,1.99 0.438,0.302 10 false MR 2.969,3.167 3.406,3.469 0.438,0.302 10 false MF 3.813,3.167 4.25,3.469 0.438,0.302 10 false MR 2.76,3.156 3.198,3.458 0.438,0.302 10 false 9 4.135,3.167 4.573,3.469 0.438,0.302 10 false 3 2.75,2.26 3.99,2.51 1.24,0.25 10 false G16*1, G24*2 2.75,3.75 4.469,3.948 1.719,0.198 10 false G14*1, G23*2 0.219,4.406 4.802,4.604 4.583,0.198 10 false *1: w/o Door Mirror Foot Light 2.635,4.406 6,4.656 3.365,0.25 10 false *2: w/ Door Mirror Foot Light

CAUTION / NOTICE / HINT

NOTICE:
·

The power mirror control system uses the 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.

·

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

·

If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.



PROCEDURE

1.READ VALUE USING GTS (OUTER MIRROR FOLD SWITCH, OUTER MIRROR AUTO SWITCH))
a.

Read the Data List according to the display on the GTS.

Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Outer Mirror Fold Switch Retractable outer mirror switch signal OFF or ON OFF: Retractable outer mirror switch not in retract position
ON: Retractable outer mirror switch in retract position 		-
Outer Mirror Auto Switch Retractable outer mirror switch signal OFF or ON OFF: Retractable outer mirror switch not in auto retract position
ON: Retractable outer mirror switch in auto retract position 		-
Body Electrical > Main Body > Data List
Tester Display
Outer Mirror Fold Switch
Outer Mirror Auto Switch
50003 449 71,72
OK:

On the GTS screen, ON or OFF is displayed accordingly.



Result:
Proceed to
OK
NG



OK

2.CHECK POWER RETRACT MIRROR FUNCTION

NG

12.INSPECT OUTER MIRROR SWITCH ASSEMBLY
2.CHECK POWER RETRACT MIRROR FUNCTION
a.

Check the power retract mirror function.


Result:
Result Proceed to
Both outer rear view mirror assemblies are malfunctioning A
Outer rear view mirror assembly LH is malfunctioning B
Outer rear view mirror assembly RH is malfunctioning C



A

3.PERFORM ACTIVE TEST USING GTS (MIRROR FOLD SIGNAL, MIRROR RETURN SIGNAL)

B

8.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

C

10.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH
3.PERFORM ACTIVE TEST USING GTS (MIRROR FOLD SIGNAL, MIRROR RETURN SIGNAL)
a.

Perform the Active Test according to the display on the GTS.

Body Electrical > Main Body > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Mirror Fold Signal Retract mirror operation OFF or ON -
Mirror Return Signal Retract mirror operation OFF or ON -
Body Electrical > Main Body > Active Test
Tester Display
Mirror Fold Signal
50004 449 91
Body Electrical > Main Body > Active Test
Tester Display
Mirror Return Signal
50004 449 92
OK:

The uter rear view mirror assembly LH/RH operate normally.



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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


NG

4.READ VALUE USING GTS (POWER RETRACT MIRROR INPUT SIGNAL)
4.READ VALUE USING GTS (POWER RETRACT MIRROR INPUT SIGNAL)
a.

Read the Data List according to the display on the GTS.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Power Retract Mirror Input Signal Power retract mirror drive signal (Input) Stop, Retract or Return Stop: Outer mirror switch not being operated
Retract: Outer mirror switch in retract position
Return: Outer mirror switch in driving position 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Power Retract Mirror Input Signal
50003 475 1300
OK:

The GTS display changes correctly according to the outer mirror switch assembly operation.



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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


NG

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

Disconnect the 4C power distribution box assembly connector.


b.

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



c.

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



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(G14,G16)Location & Routing

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

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

4C-10 - G14-9 (MF) Always Below 1 Ω
4C-10 - G16-9 (MF) Always Below 1 Ω
4C-21 - G14-3 (MR) Always Below 1 Ω
4C-21 - G16-3 (MR) Always Below 1 Ω
4C-10 - Body Ground Always 10 kΩ or higher
4C-21 - Body Ground Always 10 kΩ or higher

w/ Door Mirror Foot Light
Tester Connection Condition Specified Condition

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

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

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

4C-10 - G23-9 (MF) Always Below 1 Ω
4C-10 - G24-9 (MF) Always Below 1 Ω
4C-21 - G23-3 (MR) Always Below 1 Ω
4C-21 - G24-3 (MR) Always Below 1 Ω
4C-10 - Body Ground Always 10 kΩ or higher
4C-21 - Body Ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

6.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

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

Result:
Proceed to
OK
NG



OK

7.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH

NG

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

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


8.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

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

Result:
Proceed to
OK
NG



OK

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

NG

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

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


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

Disconnect the 4C power distribution box assembly connector.


b.

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

G16-9 (MF) - 4C-10 Always Below 1 Ω
G16-3 (MR) - 4C-21 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

G24-9 (MF) - 4C-10 Always Below 1 Ω
G24-3 (MR) - 4C-21 Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPAIR POWER DISTRIBUTION BOX ASSEMBLY

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

10.INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH

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

Result:
Proceed to
OK
NG



OK

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

NG

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

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


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

Disconnect the 4C power distribution box assembly connector.


b.

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

G14-9 (MF) - 4C-10 Always Below 1 Ω
G14-3 (MR) - 4C-21 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

G23-9 (MF) - 4C-10 Always Below 1 Ω
G23-3 (MR) - 4C-21 Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

12.INSPECT OUTER MIRROR SWITCH ASSEMBLY

Click hereVehicle Exterior>MIRROR (EXT)>OUTER MIRROR SWITCH>INSPECTION

Result:
Proceed to
OK
NG



OK

13.CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)

NG

REPLACE OUTER MIRROR SWITCH ASSEMBLY

Click hereVehicle Exterior>MIRROR (EXT)>OUTER MIRROR SWITCH>REMOVAL


13.CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)
a.

Disconnect the E36 main body ECU (multiplex network body ECU).


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(I8,E36)Location & Routing

Click Connector(I8)Body>No. 2 Front Door Wire RH / No. 2 Front Door Wire LH>Outer Mirror Switch Assembly

Click Connector(E36)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Multiplex Network Body ECU

I8-9 (MAT) - E36-26 (AMR) Always Below 1 Ω
I8-10 (MR) - E36-27 (RET) Always Below 1 Ω
I8-8 (E) - Body ground Always Below 1 Ω
I8-9 (MAT) or E36-26 (AMR) - Body ground Always 10 kΩ or higher
I8-10 (MR) or E36-27 (RET) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR