relay SSANGYONG KORANDO 2013 User Guide

6) Cooling Fan Control
(1) Overview of Cooling Fan and A/C Compressor
The cooling system maintains the engine temperature at an efficient level during all engine operating
conditions. The water pump draws the coolant from the radiator. The coolant then circulates through
water jackets in the engine block, the intake manifold, and the cylinder head. When the coolant reaches
the operating temperature of the thermostat, the thermostat opens. The coolant then goes back to the
radiator where it cools. The heat from automatic transaxle is also cooled down through the radiator by
circulating the oil through the oil pump. There are two cooling fans (180W+120W) in G20DF engine. ECU
controls the electric cooling fans with three cooling fan relays to improve the engine torque and air
conditioning performance.
(2) Components
Refrigerant pressure
sensorCoolant temperature
sensorG20DF Engine
ECURelay box in engine
compartment
A/C compressorCooling fan moduleT-MAP sensor

(4) Cooling Fan and A/C Compressor Control
Conditions for cooling fan
The cooling fan module controls the cooling fan relay, high speed relay and low speed relay.
The cooling fan is controlled by the series and parallel circuits
A/C
switchCooling
fanCoolant temperatureRefrigerant
pressureA/C
compressor
OFFOFF
-
LO
-
HI
-
ONLO
Refrigerant
pressure<18 bar
ON
HI
pressure
HI
-
HI
- OFF (cut)
A/C compressor OFF conditions
Approx. 4 seconds after starting the engine
When abrupt acceleration
Refrigerant pressure:
-
-
-
-
Output voltage according to refrigerant pressure
The output voltage from refrigerant pressure sensor is 1.7 V to 3.5 V when the refrigerant pressure is 10
Cooling fan control by ATF temperature
ATF temperature Cooling fan speed Remark
HI -

(2) Wiring Connection of CAN Communication
Splice pack Wiring Location
S101 Floor wiring (LH)Under fuse & relay box in engine
compartment
S102 Floor wiring (RH) Inside of right fender
S201 Main wiringBehind instrument cluster (cowl cross
member)
S202 Main wiringBehind instrument cluster (cowl cross
member)
S205 Floor wiring (LH)

0000-00
2) CAN Communication Wiring Diagram
Splice pack Wiring Location
S101 W/H Floor (LH) Glow Control Unit
S102 W/H Floor (RH) Inside RH Fender
S202 W/H Main Backside Cluster (LH Cowl Cross Member)
S204 W/H Main Backside Cluster (Under ICM Relay Box)
S205 W/H Main Backside Audio (CTR Cowl Cross Member)
S206 W/H Floor (LH) Under Driver Seat
S401 W/H Floor (LH) Beside PAS Unit (inside LH QTR Trim)

8410-00
1. CAUTIONS WHEN WORKING ON ELECTRICAL UNITS
Disconnect the negative cable from the battery
in advance when working on electrical units. -
If a fuse is blown, replace it with a fuse which
has the correct amperage rating. If you use a
fuse with higher capacity than the
specification, the component can be
damaged or catch fire. -Do not drop or appy excessive impact to
sensors and relays. -
10 A 15 A
Make sure to turn "OFF" the ignition switch
and other lamp switches before disconnecting
or connecting the negative battery cable.
(Otherwise, semiconductor parts can be
damaged.)

3. MAJOR CHANGES
Changes for engine compartment fuse box
8410-02 Engine compartment fuse box
- Changed layout
Name Changes made
A ALT terminal and fuse (150A) Newly adopted
B A/C compressor relay Changed to PCB type
C Headlamp high beam Changed to PCB type
D Rear glass/heated mirror relay Changed to PCB type
E Cooling fan high-speed relay Changed to Micro type
F Blower motor relay Changed to Micro type
G Cooling fan low-speed relay Changed to Micro type
H Cooling fan relay Changed to Micro type
I Fuel heater relay Changed to Micro type
J PTC1 heater relay Changed to Micro type
K Power window relay Changed to Micro type
L Starting relay Changed to Micro type

ICM box
Interior fuse boxEngine compartment
fuse box
The fuse and relay boxes in this vehicle are mounted on the engine compartment, left side of the
instrument panel and rear of the instrument cluster (3 off in total). The capacities and its names for each
fuse and relay are marked on the each fuse and relay box cover.
The label attached on each fuse box indicates only major fuses and relays. For detailed information, see
the power distribution circuit diagram.
1. OVERVIEW
2. SYSTEM LAYOUT

Windshield wiper MIST operation
The ignition is turned ON.
The MIST switch is turned ON for 0.1 seconds or more.
The wiper LO/HI relay is activated 0.1 seconds (T1) after the MIST switch is turned ON.
The wiper LO relay is deactivated when the MIST switch is turned OFF and the wiper motor parking
signal is input. A.
B.
C.
D. Operation 1.
The wiper HI relay is activated when the MIST switch signal is input. If no signal from the MIST
switch is input, the wiper LO relay is activated.

Windshield washer switch coupled windshield wiper operation
The ignition is turned ON.
When the windshield washer switch is turned ON for 0.6 seconds or more (T2), the windshield
washer motor is activated.
The windshield wiper LO relay is activated 0.5 seconds (T1) after the windshield washer switch is
turned ON.
When the windshield washer switch is turned OFF, the windshield wiper LO relay is deactivated after
the windshield wiper motor rotates 3 times (T3). A.
B.
C.
D. Operation 1. (washer switch pressed for 0.1 to 0.59 seconds)

8710-01
Windshield washer switch coupled windshield wiper operation (during intermittent
windshield wiper)
The ignition is turned ON with the wiper AUTO switch ON.
The windshield wiper LO relay is activated 0.5 seconds (T1) after the windshield washer switch is
turned ON for less than 0.6 seconds (T2). A.
B. Operation 1. (windshield washer switch pressed for 0.1 to 0.59 seconds)
When the windshield washer switch is turned OFF, the windshield wiper LO relay is deactivated
after the windshield wiper motor rotates once (T5), and then the windshield wiper is operated
intermittently after the rest time (T6). -
The ignition is turned ON with the wiper AUTO switch ON.
The windshield wiper LO relay is activated 0.5 seconds (T1) after the windshield washer switch is
turned ON for 0.6 seconds or more (T3). C.
D. Operation 2. (windshield washer switch pressed for 0.6 seconds or more)
When the windshield washer switch is turned OFF, the windshield wiper LO relay is deactivated
after the windshield wiper motor rotates 3 times (T4), and then the windshield wiper is operated
intermittently after the rest time (T6). -