Land Rover Discovery Etm 1995 2nd Edition Rover Manual
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COOLING FANS 3 ETM K5 DISCOVERY ELECTRICAL TROUBLESHOOTING MANUAL Condenser Fan Operation (300Tdi) The Condenser Fan Motors (M113, M121) on vehicles equipped with diesel engines operate when any one of the following conditions occur: 1. Coolant temperature exceeds 100C (212F). 2. The A/C is operating. Condenser Fan with High Coolant Temperature Operation (300Tdi) When the Ignition Switch (X134) is in position II, battery voltage is applied to the Ignition Load Relay (K127). The relay is energized, applying battery voltage to the Condenser Fan Relay (K109). If the coolant temperature exceeds 100C (212F), the Condenser Fan Coolant Temperature Switch (X113) closes and energizes the Condenser Fan Relay (K109) by applying ground to the relays coil. When the relay is energized, voltage from fuse F3 is applied to the Condenser Fan Motors (M113, M121) through the relays contacts. Fan Operation with A/C (300Tdi) With the Igntion Switch (X134) in position II, battery voltage is applied to the Ignition Load Relay (K127). The relay is energized, applying battery voltage to the Condenser Fan Relay (K109) when the Front A/C Switch (X225) is turned on and the Front Fan Speed Switch (X247) is turned to positions I, II, II, or IV, ground is applied to terminal 86 of the Condenser Fan Relay (K109). The relay energizes, applying battery voltage from fuse F3 to the Condenser Fan Motors (M113, M121).
ELECTRICAL TROUBLESHOOTING MANUA L K5 ETM Cooling Fans 4 DISCOVERY A K5-6 S2045S2041 Z211 Fan Timer Diode See Ground Dis- tribution See Fuse Details 9 C204 0.5 LGP 85 30 C20073.0 NGSee Fuse Details K127 Ignition Load Relay 8530 8687 86 87 0.5 GW 0.5 B2.0 WG 0.5 WGS227 C2007 MFI±V8 MFI±T16Blower Controls E200 K5-8 K5-9 K5-10300Tdi without EDC 300Tdi with EDC 18 C2171.0 WG 0.5 WG13 C2120.5 WG 1.0 WG Compressor Controls S204 HJ10 2.0 WG 2.0 WG 2.0 WG 7 C2073 2.0 WG 1.25 UR Blower Controls Without Air ConditioningWith Air Condi- tioning 15 F 6 25 AP127 Satellite Fuse Box 115 F 15 10 AP126 Fascia Fuse Box
ELECTRICAL TROUBLESHOOTING MANUAL ETM K5 Cooling Fans (MFI±V8) 5 DISCOVERY 30 F 7 20 A S224 See Fuse Details C239 86 0.5 NO 30 3.0 NLG 3 C100 85 87a 87 2 6 5 12 See Ground Dis- tribution 0.5 UR1.0 NO3.0 NO 2.0 NO 2.0 NO 3.0 NO 3.0 NO 0.5 BG 0.5 B 36 C243 E100 C238C238C239 S291S297 HJ7 86 85 87a30 87K116 Engine Control Load Relay P125 Engine Compart- ment Fuse Box Z118 Fan Control Mod- ule Z132 Engine Control Module (ECM) Multiport Fuel In- jection (MFI±V8)
ELECTRICAL TROUBLESHOOTING MANUA L K5 ETM Cooling Fans (MFI±V8) 6 DISCOVERY K5-4 S209 M S122 M 0.5 GW C292 85 30C116 1 86 87 C292 0.5 BP 4 S298 S123 Z118 Fan Control Module Z209 Condenser Fan Control Diode 1 M121 Right Condenser Fan MotorM113 Left Condenser Fan Motor 2.0 BN 894 C238 0.5 BP 0.5 PB 0.5 BP 1 C146 2 C146 0.5 B1 C182 2 C182B E2001.5 B 1.5 B See Ground Dis- tribution See Ground Dis- tribution1.5 BN2.0 BN See Fuse Details A K109 Condenser Fan Relay 20C217 E100B 2 C183 5 C21685 8630 87 1 C183 [2] [1] X113 Condenser Fan Cool- ant Temperature Switch [1] < 94C (201F) [2] > 100C (212F) 30 F 3 30 AP126 Fascia Fuse Box 1.0 BN2.0 BN K5-11 B
ELECTRICAL TROUBLESHOOTING MANUAL ETM K5 Cooling Fans (MFI±T16 without A/C) 7 DISCOVERY 30 S2034 P125 Engine Compart- ment Fuse Box M141 Cooling Fan Motor 1 See Fuse Details 0.5 WG 85 30 C2381.5 NG1C116 See Fuse Details K190 Cooling Fan Relay 8530 86 87 86 87 0.5 BP 2.0 USC238 E103 5 C216 1 C1011 2 C1011 3.0 B See Ground Dis- tribution 6 C1007 Z132 Engine Control Module (ECM) M 15 F 3 10 AP127 Satellite Fuse Box 1 BF 3 30 A
ELECTRICAL TROUBLESHOOTING MANUA L K5 ETM Cooling Fans (MFI±T16 with A/C) 8 DISCOVERY 30 F 3 30 A K5-4 MM A P125 Engine Compart- ment Fuse Box 0.5 GW S2091C116 8530 C292 85 8630 87 86 87 C292 2.0 BN See Fuse Details K109 Condenser Fan Relay 0.5 BP 20 5 C216 S123 2.0 BN 1.5 BN Not used 1 C182 1 C183 2 C182 1.5 B 1.5 B S122 E200 BM121 Right Condenser Fan MotorM113 Left Condenser Fan Motor C217 6 C1007 Z132 Engine Control Module (ECM) S133 3.0 BR 1 C1011 MM141 Cooling Fan Motor 1 1.5 BR 1 C1012 MM142 Cooling Fan Motor 2 2 C1012 E103 3.0 BP 1.5 B See Ground Dis- tribution 2.0 BN2.0 BN B 2 C1011 2 C183 See Ground Dis- tribution B 4 C217
ELECTRICAL TROUBLESHOOTING MANUAL ETM K5 Cooling Fans (300Tdi without EDC) 9 DISCOVERY 30 F 3 30 A E103K5-4 [1] B K5-11 MM A P125 Engine Compart- ment Fuse Box 0.5 GW S2091C116 8530 C292 85 8630 87 86 87 C292 2.0 BN See Fuse Details K109 Condenser Fan Relay 0.5 BP 20 4 5 C217 C216 Not used S123 2.0 BN 1.5 BN Not used Z209 Condenser Fan Control Diode 1 0.5 PB 0.5 BP 1 C146 X113 Condenser Fan Cool- ant Temperature Switch [1] < 94C (201F) [2] > 100C (212F) [2] 2 C146 0.5 B See Ground Dis- tribution1 C1821 C183 2 C182 2 C183 1.5 B 1.5 B See Ground Dis- tribution S122 E200 BM121 Right Condenser Fan MotorM113 Left Condenser Fan Motor B 2.0 BN
ELECTRICAL TROUBLESHOOTING MANUA L K5 ETM Cooling Fans (300Tdi with EDC) 10 DISCOVERY 30 F 3 30 A E103K5-4 [1] B K5-11 MM A P125 Engine Compart- ment Fuse Box 0.5 GW S2091C116 8530 C292 85 8630 87 86 87 C292 2.0 BN See Fuse Details K109 Condenser Fan Relay 0.5 BP 20 4 5 C217 C216 Not used S123 2.0 BN 1.5 BN Not used Z209 Condenser Fan Control Diode 1 0.5 PB 0.5 BP 1 C146 X113 Condenser Fan Coolant Temperature Switch [1] < 94C (201F) [2] > 100C (212F) [2] 2 C146 1.0 B See Ground Dis- tribution1 C1821 C183 2 C182 2 C183 1.5 B 1.5 B See Ground Dis- tribution S122 E200 BM121 Right Condenser Fan MotorM113 Left Condenser Fan Motor B 2.0 BN
ELECTRICAL TROUBLESHOOTING MANUAL ETM K5 Cooling Fans 11 DISCOVERY 19 C217 0 S244 B 0.5 YB Z210 Condenser Fan Control Diode 2 0.5 PBK5-6 MFI±V8 300Tdi without EDC K5-9 K5-10 300Tdi with EDC 0.5 PB 0.5 PB 0.5 NW4 C2073 452 C2025 X225 Front A/C Switch Compressor Controls Interior Lamps Compressor Controls 0.5 UR 0.5 LG 1 3C2025 0.5 WB E201 See Ground Dis- tribution S2056 Blower Controls 0.5 N 2 C2022 X247 Front Fan Speed Switch 0.5 N 1 C2022 E201 See Ground Dis- tribution 0I IV III II 1 C2067 1.0 NW [1] 1.0 N 2 C2067 0.5 N 2 C2027 2.0 N
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