DISCOVERY
K5 ETM
Cooling Fan and Condenser Fan Operation
(MFI–T16)
The Cooling Fan 1 (M141) or Cooling Fans (M141,
M142) and Condenser Fan Motors (M113, M121)
on vehicles equipped with MFI–T16 engines
operate when any of the following conditions occur:
1.
2.
The A/C system is operating.
The Engine Control Module (ECM) determines
that Cooling Fan and/or Condenser Fan Motor
operation is required.
Cooling Fan Operation without A/C (MFI–T16)
With the Ignition Switch (X134) in position II,
battery voltage is applied to the Cooling Fan Relay
(K190) from fuse F3 of the Satellite Fuse Box 1
(P127). When Cooling Fan Operation is required,
the Engine Control Module (ECM) (Z132) grounds
terminal 86 of the Cooling Fan Relay (K190). The
relay energizes, applying battery voltage from fuse
F3 of the Engine Compartment Fuse Box (P125) to
the Cooling Fan Motor 1 (M141). When Cooling
Fan Operation is no longer required, the ECM
removes the ground supply to the Cooling Fan
Relay (K190). The Relay de–energizes, removing
the voltage supply to the Cooling Fan Motor 1
(M141).
Cooling Fan and Condenser Fan Operation with
A/C (MFI–T16)
With the Ignition 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
Cooling Fan and Condenser Fan operation is
required, the Engine Control Module (ECM) (Z132)
grounds terminal 86 of the Condenser Fan Relay
(K109). The relay energizes, applying battery
voltage from fuse F3 of the Engine Compartment
Fuse Box (P125) to the Cooling Fan Motors (M141,
142)
and the Condenser Fan Motors (M113,
M121). When Cooling Fan and Condenser Fan
operation is no longer required, the ECM removes
the ground supply to the Condenser Fan Relay
(K109). The relay de–energizes, removing the
voltage supply to the Cooling Fans (M141, M142)
and the Condenser Fan Motors (M113, M121).
2
E L E C T R I C A L T R O U B L E S H O O T I N G M A N U A L
| Categories | Land Rover, Land Rover Discovery |
|---|---|
| Tags | Land Rover |
| Model Year | 1995 |
| Download File |
|
| Document Type | Electrical Troubleshooting Manual |
| Language | English |
| Product Name | Discovery |
| Product Brand | Land Rover |
| Document File Type | |
| Publisher | landrover.com |
| Wikipedia's Page | http://en.wikipedia.org/wiki/Land_Rover |
| Copyright | Attribution Non-commercial |
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