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Volume 4

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LOCATION:    12.3 Electric Mirror, Heated Mirrors, Automatic Dimming (EMSC)   >   23 Electrical Test Program - Test


Electrical Test Program - Test

Test step
DTC
Test scope
Test connection
Test condition
Nominal value
Possible cause/ Remedy
1.0 Electrically adjustable and heated driver-side outside rearview mirror (M21/1)
Voltage supply

 


5

 

3



M21/1



M21/1

 


4

 

4

Connector unplugged from M21/1.
Ignition: ON
Outside mirror control switch S50 pushed upward

S50 pushed downward

S50 pushed outward

S50 pushed inward.




11 - 14 V

-11 to -14 V

11 - 14 V

-11 to -14 V
Wiring,
S50,
M21/1.
2.0 Electrically adjustable and heated front-passenger outside rearview mirror (M21/2)
Voltage supply

 


5

 

3



M21/2



M21/2

 


4

 

4

Connector unplugged from M21/2.
Ignition: ON
S50 pushed upward.

S50 pushed downward.

S50 pushed outward.

S50 pushed inward.



11 - 14 V

-11 to -14 V

11 - 14 V

-11 to -14 V
Wiring,
S50,
M21/2.
3.0 Outside mirror control
switch (S50)
Voltage supply

 

1


S50

 

6

Connector unplugged from S50.
Ignition: ON


11 - 14 V
Wiring.
4.0 Electrically adjustable and heated driver-side outside rearview mirror (M21/1) heating
Voltage supply

 

2


M21/1

 

1

Connector unplugged from M21/1.
Ignition: ON


11 - 14 V
Wiring.
5.0 Electrically adjustable and heated front passenger outside rearview mirror (M21/2) heating
Voltage supply

 

2


M21/2

 

1

Connector unplugged from M21/2.
Ignition: ON


11 - 14 V
Wiring.
6.0 Outside mirror control switch (S50) lighting
Voltage supply

 

1


S50

 

2

Connector unplugged from S50.
Switch on parking lamps


11 - 14 V
Wiring.
7.0 Non-USA vehicles only.
Continue to next test step.
 
     
8.0 Non-USA vehicles only.
Continue to next test step.
 
     
9.0 Non-USA vehicles only.
Continue to next test step.
 
     
10.0 Non-USA vehicles only.
Continue to next test step.
 
     
11.0 Automatic dimming inside rearview mirror (H7)
Voltage supply

2
H7


5
Connector unplugged from H7.
Ignition: ON.


11 - 14 V
Wiring.
12.0 Backup lamp switch (S16/2)
Voltage supply

2
H7


1
Connector unplugged from H7.
Ignition: ON.

Reverse gear engaged.


0 - 1 V

11 - 14 V
Wiring,
S16/2.
13.0 Outside mirror control
switch (S50)
Voltage supply

2
H7


3
Connector unplugged from H7.
Ignition: ON.

Dome lamp switched on.


0 - 5 V

11 - 14 V
Wiring,
E15.