Page 473 of 1082
15-8
A/C compressorOCV (Oil Control Valve)
3) Components for ECU Output
Start motorInjector
VIS solenoid valve
Purge control solenoid
valve
G20DF Engine ECUIgnition coil
CAN
ABS & ESP unit
BCM
E-coupling unit
EPS
Instrument cluster
SKM
TCU
Diagnostic tool -
-
-
-
-
-
-
-
Cooling fan
module
Page 478 of 1082
15-130000-00
Coolant temperature
sensor
4) Ignition System Control
(1) Overview
G20DF engine is equipped with the single ignition system. Each spark plug is operated independently
by the ECU and one ignition coil and spark plug are provided for each cylinder.
(2) Components
Input Components ▶
Crankshaft position
sensorAccelerator pedal position
sensor
Knock sensorCamshaft position
sensorElectronic
throttle body
Output Components ▶
Page 483 of 1082
15-18
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 486 of 1082
15-210000-00
7) Immobilizer Control
(1) Overview
The Immobilizer System provides an additional theft deterrent to the vehicle in which it is installed and
prevents it from being started by unauthorized persons. The transponder integrated in the key and the
engine control unit have the same code. When the ignition key with the integrated transponder is turned
to the ON position, the ECU (Engine Control Unit) checks the crypto code of the key and, if correct,
allows the vehicle to start the engine.
For details, refer to Chapter "BCM".
(2) Components
Conditions for cooling fan ▶
Immobilizer
antenna
Immobilizer
key
Start motor
Instrument
cluster
BCM
G20DF ECU
Page 888 of 1082
03-33190-01
1. SPECIFICATION
DG20DD
Model name WM6F1
Overall length 370 mm
Distance between shafts 205 mm / 70 mm
Weight (except transmission fluid) 62 kgf (2WD) / 63 kgf (4WD)
Gear ratio 1st 3.538 3.385 3.616
2nd 1.909 1.708 1.957
3rd 1.179 1.033 1.207
4th 0.814 0.786 0.905
5th 0.734 0.730 0.842
6th 0.628 0.595 0.714
Reverse 3.910 3.747 3.747
Synchronizer ring
type1st T: Triple-cone
2nd T: Triple-cone
3rd T: Triple-cone
4th D: Double-cone
5th D: Double-cone
6th S: Single-cone
Reverse T: Triple-cone
Shifting Type Remote (Cable type)
Gear selector lever
positionReversing:
Reverse ring
pull type
ItemSpecification
Remark
D20DTFD20DTF +
Low CO₂G20DF