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Land Rover Discovery Lhd Models Etm 1995 4th Edition Exp Rover Manual

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Page 386 CENTRAL LOCKING
1
ETM L6
DISCOVERY
ELECTRICAL TROUBLESHOOTING MANUAL

% (+ &*$ #1* 0&+*/ +* +!(/ 3&0% 0% %#0
(.) 5/0) . +*0.+((! 5 0% %#0 (.)
*&0
#. 0+ 0% %#0 (.) 5/0)
% (+ &*$ #1* 0&+*/ +* )+!(/ 3&0%+10 0% %#0
(.) 5/0) . +*0.+((! 5 0% #0 .+*0
++. + 010+.
% #+1. !++./ *! 0% 0&($0 . (+ ! +.
1*(+ ! 1/&*$ 0% (#0 #.+*0 40.&+. 5 +. 0%
&*0.&+. !++. /&(( *+ % .. !++./ *
&*!,*!*0(5 (+ ! +. 1*(+ ! #.+) 0% &*/&!
5 1/&*$ 0%...

Page 387 ELECTRICAL TROUBLESHOOTING MANUA L
L6 ETM
Central Locking
2
DISCOVERY
S501

0.5 K
[2][2][1][1]
E201 0.5 B
See Ground Dis-
tribution
4 C507
30
F 4
15 A

See Fuse Details
13 C50298
1.0 NK 0.5 O
3 C5071
1.0 K 1.0 O
AL6-3
BL6-3
2
M

Page 388 ELECTRICAL TROUBLESHOOTING MANUAL
ETM L6
Central Locking
3
DISCOVERY

!

AL6-2L6-2B
Not used
1.0 O1.0 O1.0 K
1.0 K
0.5 O 0.5 K
2 C3060.5
O
1.0 K

0.5
K

!

S315 S314
3 C306
5 C2776 C277

!

!

1.0 OS2072
6 C4154 C415
1.0 O1.0 K

S2007 S2009
S2073
1.0
K 1.0
O
O K

Page 389 CENTRAL LOCKING
4
L6 ETM
DISCOVERY
ELECTRICAL TROUBLESHOOTING MANUA L
TROUBLESHOOTING HINTS
9. Check Fuse F4 of Satellite Fuse Box 2.
10. If all the central locking functions except the left
front door operate, replace the Left Front Door
Lock Actuator (M114 ).
11. If only the left front door operates, check K and
O wires.
SYSTEM DIAGNOSIS
1. If the central locking functions do not operate
at all, do Test A.
2. If the Right Front Door Actuator (M122) does
not operate, do Test B.
3. If the Tailgate Lock...

Page 390
12
43
ELECTRICAL TROUBLESHOOTING MANUAL
ETM L6
Central Locking
5
DISCOVERY

(&
% * *
&
*
Right Front Door
Lock Actuator
M114
Left Front Door
Lock Actuator
M122
Right Front Door
Lock Actuator

# $# )

$$%&

#$!
%$# $$%

# $# )

% *
% *
&

*
% *

Left Front Door
Lock...

Page 391 ELECTRICAL TROUBLESHOOTING MANUA L
L6 ETM
Central Locking
6
DISCOVERY

$! %$

$! %$

& &
&
Tailgate Lock
Actuator !!#

! $
! $ !!

!!#

! $
! $ !!

2 1
2 1
M132
Tailgate Lock
Actuator

M132
Tailgate Lock
Actuator
#$

Page 392 ELECTRICAL TROUBLESHOOTING MANUAL
ETM L6
Central Locking
7
DISCOVERY
&

J2176
M117, M125 Rear
Door Lock Actua-
tor

# $# (

% )
$$%&

$!
%$# $$%
12

J2176
M117, M125 Rear
Door Lock Actua-
tor

# $# (

% )
)

M117, M125 Rear
Door Lock Actua-
tor
$$%&

#$!
%$# $$%
12...

Page 393 POWER MIRRORS
1
ETM M3
DISCOVERY
ELECTRICAL TROUBLESHOOTING MANUAL
CIRCUIT OPERATION
When the Ignition Switch (X134) is in position II,
voltage is suplied to the power mirrors circuit by
fuse F18.
Left/Right Movement
When a selected mirror is moved to the left by the
Mirror Adjustment Switch (X146) the internal
contacts move to the
ªMove Down or Leftº and the
ªMove Leftº positions. The Left/Right Motor of the
selected actuator is grounded at E201 through the
SW wires and the switch contacts. Voltage is...

Page 394 ELECTRICAL TROUBLESHOOTING MANUA L
M3 ETM
Power mirrors
2
DISCOVERY
,*
+#%*

*# ,*
(.

0.5 GLG

#))() $,*+&+
-#+
[1] Right Mirror
Enabled
[2] Left Mirror
Enabled
[3] Move Right
[4] Move Left
[5] Move Up
[6] Move Down
[7] Move Up or
Right
[8] Move Down or
Left

+ #))() +,+()
[1] Left/Right
[2] Up/Down

)(, #*/
+)#,+#(

0.5 BK...

Page 395 POWER MIRRORS
3
ETM M3
DISCOVERY
ELECTRICAL TROUBLESHOOTING MANUAL
SYSTEM DIAGNOSIS
1. If the mirrors do not operate at all, do Test A.
2. If only one mirror does not operate, do test B,
the Mirror Actuator (M115, M123) test.
3. If one or both mirrors operate in some, but not
all switch positions, do Test A.

Page 396 ELECTRICAL TROUBLESHOOTING MANUA L
M3 ETM
Power mirrors
4
DISCOVERY

#

# %#

# %#

$
! & &

&
Ground Connec-
tions ! &

X146
Mirror Adjust-
ment Switch
X146
Mirror Adjust-
ment Switch

View all the pages

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image text

							ELECTRICAL TROUBLESHOOTING MANUA L
L6 ETM
Central Locking
6
DISCOVERY

	 	 
	 	 
 $!  %$
 
	

	






 $!  %$
 
	


	 	 

 & &
&
Tailgate Lock
Actuator  !!#



! $ 
! $ !!
 

 !!#

 ! $ 
! $ !!
	  






2 1
2 1
M132
Tailgate Lock
Actuator

M132
Tailgate Lock
Actuator
#$

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image text

							ELECTRICAL TROUBLESHOOTING MANUAL
ETM L6
Central Locking
7
DISCOVERY
& 




J2176
M117, M125 Rear
Door Lock Actua-
tor 	 




#  $# ( 
 

 



 % ) 
 $$%&


	
$!   
%$# $$%
12
	 

J2176
M117, M125 Rear
Door Lock Actua-
tor



#  $# ( 
 

 


 % ) 
) 	 

M117, M125 Rear
Door Lock Actua-
tor 
 $$%&

	 
#$!   
%$# $$%
12

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image text

							POWER MIRRORS
1
ETM M3
DISCOVERY
ELECTRICAL TROUBLESHOOTING MANUAL
CIRCUIT OPERATION
When the Ignition Switch (X134) is in position II,
voltage is suplied to the power mirrors circuit by
fuse F18.
Left/Right Movement
When a selected mirror is moved to the left by the
Mirror Adjustment Switch (X146) the internal
contacts move to the
 ªMove Down or Leftº and the
ªMove Leftº positions. The Left/Right Motor of the
selected actuator is grounded at E201 through the
SW wires and the switch contacts. Voltage is
applied to the Left/Right Motor through the BP, BU
wires. The mirror now moves left.
When a selected mirror is moved to the right by the
Mirror Adjustment Switch (X146) the internal
contacts move to the ªMove up or Rightº and the
ªMove Rightº positions. The Left/Right Motor of the
selected actuator is grounded at E201 through the
BU, BP wires and the switch contacts. Voltage is
applied to the Left/Right Motor through the SW
wires. Since the polarity of the voltage to the motor
has been reversed, the mirror now moves right.
Up/Down Movement
When a selected mirror is moved down by the
Mirror Adjustment Switch (X146) the internal
contacts move to the ªMove Down or Leftº and the
ªMove Downº positions. The Up/Down Motor of the
selected actuator is grounded at E201 through the
SW wires and the switch contacts. Voltage is
applied to the Up/Down Motor through the BK, BN
wires. The mirror now moves down.
When a selected mirror is moved up by the Mirror
Adjustment Switch (X146) the internal contacts
move to the ªMove Up or Rightº and the ªMove Upº
positions. The Up/Down Motor of the selected
actuator is grounded at E201 through the BN, BK
wires and the switch contacts. Voltage is a applied
to the Up/Down Motor through the SW wires. Since
the  polarity of the voltage to the motor has been
reversed, the mirror now moves up.

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image text

							ELECTRICAL TROUBLESHOOTING MANUA L
M3 ETM
Power mirrors
2
DISCOVERY
 ,*
+#%*

*# ,* 
(.


 
	
 0.5 GLG


#))() $,*+&+
-#+
[1] Right Mirror
Enabled
[2] Left Mirror
Enabled
[3] Move Right
[4] Move Left
[5] Move Up
[6] Move Down
[7] Move Up or
Right
[8] Move Down or
Left


 + #))() +,+()
[1] Left/Right
[2] Up/Down
   
   


	 
	
 

 )(, #*/
+)#,+#(
 

 	 
 
   

0.5 BK
0.5 BU
0.5 SW0.5 BN
0.5 BP
0.5 BK
0.5 BU


   

#!+ #))() +,/
+()
[1] Left/Right
[2] Up/Down


  
NWKUNWKU

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image text

							POWER MIRRORS
3
ETM   M3
 DISCOVERY
ELECTRICAL TROUBLESHOOTING MANUAL
SYSTEM DIAGNOSIS
1. If the mirrors do not operate at all, do Test A.
2. If only one mirror does not operate, do test B,
the Mirror Actuator (M115, M123) test.
3. If one or both mirrors operate in some, but not
all switch positions, do Test A.

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image text

							ELECTRICAL TROUBLESHOOTING MANUA L
M3   ETM
Power mirrors
4
DISCOVERY

# 

 
 
 
 	



#  %#
	 






	



#  %#
	 





$
! & & 
 


   
&
Ground Connec-
tions ! &

X146
Mirror Adjust-
ment Switch
X146
Mirror Adjust-
ment Switch

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image text

							ELECTRICAL TROUBLESHOOTING MANUAL
ETM   M3
Power mirrors
5
DISCOVERY



	 

	 








&# (&
  







&# (&
  

Mirror Adjust-
ment Switch$
Mirror Adjust-
ment Switch )
)
)  

$$#$  %&!& (&
 
  
 

! 

$$#$  %&!& (&
   #

    
! 
   	 
J2170
M115, M123 Mir-
ror Actuator







231
56 4
J2170
M115, M123 Mir-
ror Actuator



231
56 4

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image text

							ELECTRICAL TROUBLESHOOTING MANUA L
M3   ETM
Power mirrors
6
DISCOVERY
	


 	
 

 	

 



	
	
 % *
*
Mirror Adjust-
ment Switch Mirror Adjust-
ment Switch *
	

#  $# ) 
  



#  $# ) 
  

 
  %%$% 	!(&# ) 

 
 

! 

 %%$% 	!(&# ) 
 

    
! 
   	 M123
Right Mirror
Actuator


 M123
Right Mirror
Actuator
	
 %%$% 	!(&# ) 
   
 %%$% 	!(&# ) 
   

231
56 4


231
56 4

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image text

							ELECTRICAL TROUBLESHOOTING MANUAL
ETM   M3
Power mirrors
7
DISCOVERY
	
	
	


 	
 

 	

 



	
 % *
*
Mirror Adjust-
ment Switch Mirror Adjust-
ment Switch *
	

#  $# ) 
! 		



#  $# ) 
! 		

 
  %%$% 	!(&# ) 
$
 

# 

 %%$% 	!(&# ) 

!!   

# 
   
 !M123
Right Mirror
Actuator


 M123
Right Mirror
Actuator  %%$% 	!(&# ) 
      
 %%$% 	!(&# ) 
      


231
56 4


231
56 4

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image text

							ELECTRICAL TROUBLESHOOTING MANUA L
M3   ETM
Power mirrors
8
DISCOVERY

	 
 	 

	




$ )
)
Mirror Adjust-
ment Switch Mirror Adjust-
ment Switch )






&# (&
  






&# (&
  
 
 $$#$  %&!& (&

 
 

! 

$$#$  %&!& (&
 

    
! 
   	 M115
Left Mirror Actu-
ator



 M115
Left Mirror Actu-
ator


$$#$  %&!& (&

   
$$#$  %&!& (&

   


231
56 4
	
231
56 4

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