Land Rover Discovery Etm 1995 2nd Edition Rover Manual
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Page 281
![Page 281
ELECTRICAL TROUBLESHOOTING MANUAL
ETM K2
Compressor Controls (with Rear A/C)
9
DISCOVERY
8 C212
0.5 BG
D
MFI±T16 MFI±V8
K2-5 K2-4
300Tdi without
EDC K2-6
300Tdi with EDC K2-7
1.0 BG
3 C448
1.25 BG
1 C464
K207
Rear A/C Re-
frigerant Control
Valve
2 C464
0.5 RG
1 C460
X260
Rear A/C Evapor-
ator Temperature
Switch
[1] > 0C (32F)
[2] < 0C (32F)
1 C461
0.5 P
9 C448
Z228
Rear A/C Re-
frigerant Control
Valve Diode
0.5 UB
12 C448
K205
Rear A/C Fan
Speed Relay
2 C466
30
87
4 C466
K193
Rear Blower
Motor Relay...](http://img.usermanuals.tech/thumb/2848/48430/w300_discovery-etm-1995-2nd-edition-rover-280.png "Page 281
ELECTRICAL TROUBLESHOOTING MANUAL
ETM K2
Compressor Controls (with Rear A/C)
9
DISCOVERY
8 C212
0.5 BG
D
MFI±T16 MFI±V8
K2-5 K2-4
300Tdi without
EDC K2-6
300Tdi with EDC K2-7
1.0 BG
3 C448
1.25 BG
1 C464
K207
Rear A/C Re-
frigerant Control
Valve
2 C464
0.5 RG
1 C460
X260
Rear A/C Evapor-
ator Temperature
Switch
[1] > 0C (32F)
[2] < 0C (32F)
1 C461
0.5 P
9 C448
Z228
Rear A/C Re-
frigerant Control
Valve Diode
0.5 UB
12 C448
K205
Rear A/C Fan
Speed Relay
2 C466
30
87
4 C466
K193
Rear Blower
Motor Relay...")
ELECTRICAL TROUBLESHOOTING MANUAL ETM K2 Compressor Controls (with Rear A/C) 9 DISCOVERY 8 C212 0.5 BG D MFI±T16 MFI±V8 K2-5 K2-4 300Tdi without EDC K2-6 300Tdi with EDC K2-7 1.0 BG 3 C448 1.25 BG 1 C464 K207 Rear A/C Re- frigerant Control Valve 2 C464 0.5 RG 1 C460 X260 Rear A/C Evapor- ator Temperature Switch [1] > 0C (32F) [2] < 0C (32F) 1 C461 0.5 P 9 C448 Z228 Rear A/C Re- frigerant Control Valve Diode 0.5 UB 12 C448 K205 Rear A/C Fan Speed Relay 2 C466 30 87 4 C466 K193 Rear Blower Motor Relay...
Page 282
COMPRESSOR CONTROLS 10 K2 ETM DISCOVERY ELECTRICAL TROUBLESHOOTING MANUA L TROUBLESHOOTING HINTS 9. If the Front Blower Motor(s) do not operate normally, refer to Blower Controls, Section K1. 10. Check Fuse F3 of the Engine Compartment Fuse Box (P125), F3 of the Satellite Fuse Box 1, and Fuse F15 of the Fascia Fuse Box (P126). 11. Verify that refrigerant pressure is OK before preceeding with the following diagnostic text. SYSTEM DIAGNOSIS (MFI±V8) 1. If the A/C Compressor Clutch (K107) does not engage in...
Page 283
ELECTRICAL TROUBLESHOOTING MANUAL
ETM K2
Compressor Controls
11
DISCOVERY
$ ! & $
%#
K108
Compressor
Clutch Relay
$ ! & $
K108
Compressor
Clutch Relay
#$
Page 284
ELECTRICAL TROUBLESHOOTING MANUA L K2 ETM Compressor Controls 12 DISCOVERY , Compressor Clutch Relay K108 Compressor Clutch Relay K108 Compressor Clutch Relay $!)!%$ +!) $!)!%$ +!) ! , %$) $ & +!) %#& ((% *) ! , Compressor Clutch , $ !$ %$) +!)
Page 285
ELECTRICAL TROUBLESHOOTING MANUAL ETM K2 Compressor Controls 13 DISCOVERY K170 A/C Logic Relay Z132 Engine Control Module (ECM) R400002 #&$# & ! #&$# & ! % ( % (
Page 286
ELECTRICAL TROUBLESHOOTING MANUA L K2 ETM Compressor Controls 14 DISCOVERY K170 A/C Logic Relay K170 A/C Logic Relay % ! % % ! % Engine Control Module (ECM) ( ! #$$!# &% # ( ( A/C Logic Relay ! #$$!# &%
Page 287
ELECTRICAL TROUBLESHOOTING MANUAL
ETM K2
Compressor Controls
15
DISCOVERY
$,-
K108
Compressor
Clutch Relay
X101
Front A/C Evap-
orator Tempera-
ture Switch
%(-)( /-&
%(-)( /-&
.,$ 0
(%($
+)(- !( *$$# /-&
1
+)(- /-&
+$ 0
+$ 0
Front A/C Evap-
orator Tempera-...
Page 288
ELECTRICAL TROUBLESHOOTING MANUA L K2 ETM Compressor Controls 16 DISCOVERY K108 Compressor Clutch Relay ! & ! ( & ! & ! ( & % ) ) Compressor Clutch #$%%$ & K108 Compressor Clutch Relay $ ) $ ) $ )
Page 289
ELECTRICAL TROUBLESHOOTING MANUAL ETM K2 Compressor Controls 17 DISCOVERY %$)$&% *$) # %$)$&% *$) # %$%! (&%) % !! *$) # (&%) *$) # $(! + K108 Compressor Clutch Relay Z132 Engine Control Module (ECM) Compressor Clutch Relay + ...
Page 290
ELECTRICAL TROUBLESHOOTING MANUA L K2 ETM Compressor Controls 18 DISCOVERY K170 A/C Logic Relay # ( $# * ( # ( $# * ( + Engine Control Module (ECM) $%& $& !)( K170 A/C Logic Relay & + & + & + + # #