Page 431 of 1336
Description Selection Coding
MIL MIL - not illuminate Select : MIL - illuminate
MIL - illuminate
Engine fan Relay Select : Relay
PWM
Air-Conditionation Not equipped Select the appropriate system
Equipped
OBD Information No MIL OBD - I Select the appropriate system
MIL treatment OBD - I
MIL treatment OBD - II
MIL treatment E - OBD
MIL treatment KOBD
Engine E20 Select : E20
E23
E28
E32
E36
Body Sedan Select : Sedan
Limousine
4. CODING
1) Variant Coding
Description Selection Coding
Unleaded/leaded Unleaded Select the appropriate system
Leaded
Cruise control No system Select the appropriate system
Cruise control
ACC
Undefined
Vehicle speed Max 180kph Selec : 190kph
190kph
200kph
210kph
Tire size 215/65R 16 Select the appropriate system
225/60R 17
225/55R 18
undefined
Page 432 of 1336
0000-00
Description Selection Coding
Transfer case 2WD 2WD : 2WD
4WD : AWD
TOD
P/T 4WD
AWD
EPS Not equipped Select the appropriate system
Equipped
Select lever BTRA lever M/T : M/T lever
A/T : DURA lever
DC lever
DURA lever
M/T lever
EPB Not equipped Select : Not equipped
Equipped
Enable RON
conectionRON 89 Select : RON 95
RON 91
RON 93
RON 95
RON 97
RON 98
RON 100
Not defined
MIL MIL - not illuminate Select : MIL - illuminate
MIL - illuminate
Engine fan Relay Select : Relay
PWM
Coding is completed NO Select : YES
YES
Page 572 of 1336
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
Page 574 of 1336
(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 -
Page 578 of 1336
(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)
Page 627 of 1336
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)
Page 629 of 1336
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.)
Page 632 of 1336
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