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

							ELECTRICAL TROUBLESHOOTING MANUA L
L6 ETM
Central Locking
6
DISCOVERY

	 	 
	 	 
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							ELECTRICAL TROUBLESHOOTING MANUAL
ETM L6
Central Locking
7
DISCOVERY
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M117, M125 Rear
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							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. 
						

							ELECTRICAL TROUBLESHOOTING MANUA L
M3 ETM
Power mirrors
2
DISCOVERY
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							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. 
						

							ELECTRICAL TROUBLESHOOTING MANUA L
M3   ETM
Power mirrors
4
DISCOVERY

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							ELECTRICAL TROUBLESHOOTING MANUAL
ETM   M3
Power mirrors
5
DISCOVERY



	 

	 









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M115, M123 Mir-
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							ELECTRICAL TROUBLESHOOTING MANUA L
M3   ETM
Power mirrors
6
DISCOVERY
	


 	
 

 	

 



	
	
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							ELECTRICAL TROUBLESHOOTING MANUAL
ETM   M3
Power mirrors
7
DISCOVERY
	
	
	


 	
 

 	

 



	
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							ELECTRICAL TROUBLESHOOTING MANUA L
M3   ETM
Power mirrors
8
DISCOVERY

	 
 	 

	




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