Land Rover Discovery Etm 1995 2nd Edition Rover Manual
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![Page 369
ELECTRICAL TROUBLESHOOTING MANUAL
ETM L7
Central Locking (Japan)
DISCOVERY
5
[1][2]
M114
Left Front Door
Lock Actuator
[1] Lock
[2] UnlockZ113
Central Locking
Control Unit
See Ground Dis-
tributionC225 26
0.5 YK0.5 YK
5 4 C507
0.3 B
3 C507
0.5 B
S501
E201
Not used
[1][2]
M122
Right Front Door
Lock Actuator
[1] Lock
[2] Unlock
See Ground Dis-
tribution5 4 C607
0.3 B
3 C607
0.5 B
S601
E200
Not used
6 C6026 C502 0.5 GB](http://img.usermanuals.tech/thumb/2848/48430/w64_discovery-etm-1995-2nd-edition-rover-368.png "Page 369
ELECTRICAL TROUBLESHOOTING MANUAL
ETM L7
Central Locking (Japan)
DISCOVERY
5
[1][2]
M114
Left Front Door
Lock Actuator
[1] Lock
[2] UnlockZ113
Central Locking
Control Unit
See Ground Dis-
tributionC225 26
0.5 YK0.5 YK
5 4 C507
0.3 B
3 C507
0.5 B
S501
E201
Not used
[1][2]
M122
Right Front Door
Lock Actuator
[1] Lock
[2] Unlock
See Ground Dis-
tribution5 4 C607
0.3 B
3 C607
0.5 B
S601
E200
Not used
6 C6026 C502 0.5 GB")
![Page 370
ELECTRICAL TROUBLESHOOTING MANUA L
L7 ETM
Central Locking (Japan)
6
DISCOVERY
Z113
Central Locking
Control Unit
Z148
Multi±Function
Unit (MFU)
X212
Alarm Bonnet
Switch
[1] Open X201
Left Front Door
Key Switch
[1] Key turned
[2] Key outX202
Right Front Door
Key Switch
[1] Key turned
[2] Key out
See Ground Dis-
tribution
See Ground Dis-
tributionSee Ground Dis-
tribution 731 12 C225
3
1C602
C604
4 C604
S601
S5014 C5041 C178 2 C1784 C205
0.5 KB
3 C502
1 C504 0.5 UG
0.5 B
E201E101 0.5 BB 0.5 PO 0.5 PU 0.5...](http://img.usermanuals.tech/thumb/2848/48430/w64_discovery-etm-1995-2nd-edition-rover-369.png "Page 370
ELECTRICAL TROUBLESHOOTING MANUA L
L7 ETM
Central Locking (Japan)
6
DISCOVERY
Z113
Central Locking
Control Unit
Z148
Multi±Function
Unit (MFU)
X212
Alarm Bonnet
Switch
[1] Open X201
Left Front Door
Key Switch
[1] Key turned
[2] Key outX202
Right Front Door
Key Switch
[1] Key turned
[2] Key out
See Ground Dis-
tribution
See Ground Dis-
tributionSee Ground Dis-
tribution 731 12 C225
3
1C602
C604
4 C604
S601
S5014 C5041 C178 2 C1784 C205
0.5 KB
3 C502
1 C504 0.5 UG
0.5 B
E201E101 0.5 BB 0.5 PO 0.5 PU 0.5...")
ELECTRICAL TROUBLESHOOTING MANUAL ETM L7 Central Locking (Japan) 7 DISCOVERY 30 F 6 20 A See Fuse Details 14 C2254 C209 0.5 RW2 C269 1 C269 0.5 P S2061 8 3 0.5 WB 16 15 1 0.5 BN 15C225C277 C457 2C457 0.5 B E401 See Ground Dis- tribution Not usedNot used Z113 Central Locking Control UnitP128 Satellite Fuse Box 2 Z113 Central Locking Control Unit
CENTRAL LOCKING (JAPAN) 8 L7 ETM DISCOVERY ELECTRICAL TROUBLESHOOTING MANUA L TROUBLESHOOTING HINTS 5. Check Fuses F1, F5 in Satellite Fuse Box 1. 6. If the interior lights do not come on when a door is open, check suspect door switch and associated wiring. SYSTEM DIAGNOSIS 1. If the central locking function does not operate at all, do Test A. 2. If a Front Door Lock Actuator (M114, M122) does not operate, do Test B. 3. If the doors unlock themselves after operating the door locks, do Test C. 4. If the central locking function does not operate from one of the front doors, do Test D. 5. If the Tailgate Lock Actuator (M132) does not operate, do Test E. 6. If both Rear Door Lock Actuators (M117, M125) do not operate, do Test F.
ELECTRICAL TROUBLESHOOTING MANUAL ETM L7 Central Locking (Japan) 9 DISCOVERY # $ # # $ # ! % # % Central Locking Control Unit ! % ! %Z113 Central Locking Control Unit Z113 Central Locking Control Unit R160002
ELECTRICAL TROUBLESHOOTING MANUA L L7 ETM Central Locking (Japan) 10 DISCOVERY !& * ( $!(!%$ )!( $!(!%$ )!( !& * ## %%& ## %%& $#% &%$( %%& % &%$( %%& M114, M122 Front Door Lock Actuator *M114, M122 Front Door Lock Actuator M114, M122 Front Door Lock Actuator 1 652 4 3 1 652 4 3
ELECTRICAL TROUBLESHOOTING MANUAL
ETM L7
Central Locking (Japan)
11
DISCOVERY
$ ! % $
$ ! % $
& &
#$
&
Central Locking
Control Unit &
M114, M122 Front
Door Lock Actuator &Z113
Central Locking
Control Unit
Z113
Central Locking
Control Unit
R160002
R160002
!!#
!!#
&
M114, M122 Front
Door Lock Actuator
&
ELECTRICAL TROUBLESHOOTING MANUA L
L7 ETM
Central Locking (Japan)
12
DISCOVERY
#
# $ #
# $ #
!
!
Central Locking
Control Unit %
Z113
Central Locking
Control Unit
Z113
Central Locking
Control Unit
R160002
R160002
ELECTRICAL TROUBLESHOOTING MANUAL
ETM L7
Central Locking (Japan)
13
DISCOVERY
&$*$& +$* #
&$*$& +$* #
$(
$( , ,
,
M114, M122 Front
Door Lock Actuator
%% ()
%% ()
!* ,
M114, M122 Front
Door Lock Actuator
M114, M122 Front
Door Lock Actuator
1
652
4 3
1
652
4 3
,
Condenser Fan
Coolant Tem-
perature Switch
ELECTRICAL TROUBLESHOOTING MANUA L L7 ETM Central Locking (Japan) 14 DISCOVERY #$ M132 Tailgate Lock Ac- tuator $ ! % $ & !!# ! ! $ !!12 M132 Tailgate Lock Ac- tuator $ ! % $ & & Tailgate Lock Ac- tuator !!# ! ! $ !! 12
ELECTRICAL TROUBLESHOOTING MANUAL ETM L7 Central Locking (Japan) 15 DISCOVERY + + () + M117, M125 Rear Door Lock Actuator M117, M125 Rear Door Lock Actuator M117, M125 Rear Door Lock Actuator %)&% *) ! $$ &&( %$& # &%) && 12 %)&% *) ! $$ &&( & # &%) && 12
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 E200 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 E200 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 E200 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 E200 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.