Section 08
ENGINE MANAGEMENT (4-TEC)
Subsection 03
(COMPONENT INSPECTION AND ADJUSTMENT)
08-03-18
SMR2003_027 _08_03A.FM
Voltage Test
Check the EMS ECU voltage output from to the throt-
tle position sensor.
TPS
Disconnect connector from throttle position sen-
sor. To unlock connector, insert a small screwdriv-
er between the folded tab.
NOTE:
On the
Supercharged Models
, a mirror is
useful to see under throttle body.
To see the connector pin-out, temporarily remove
the connector shield joining the harness, to ex-
pose the terminal numbers. Connect a voltmeter
to the terminals of the wiring harness as per the
following table.
Remove and reinstall the safety lanyard to activate
the EMS ECU.
Check the voltage readings as follows.
If voltage test is good, replace the TPS.
If voltage test is not good, check the resistance of
the TPS circuit.
Resistance Test
Reconnect
the TPS.
Disconnect the EMS ECU connector A on the EMS
ECU.
Using a multimeter, check resistance value be-
tween terminal A-25 and A-39.
The resistance should be 1600 - 2400
Ω
.
Check the resistance between terminal A-24 and
terminal A-39 with the throttle plate in
idle
posi-
tion.
The resistance should be approximately 2500
Ω
.
Check the resistance between terminal A-24 and
terminal A-39 with the throttle plate in
wide open
position.
The resistance should be 1000 - 1100
Ω
.
Check the resistance between terminal A-24 and
A-25 with throttle plate in
idle
position.
The resistance should be 1000 - 1100
Ω
.
Now check the resistance with the throttle plate
in
wide open
position.
The resistance should be 2600 - 2700
Ω
.
NOTE:
When measuring between terminals A-24
and A-39, resistance
value decreases
while de-
pressing throttle lever. when measuring between
terminals A-24 and A-25, resistance
value in-
creases
while depressing throttle lever. The resis-
tance value should change smoothly and propor-
tionally to throttle movement. Otherwise, replace
TPS.
If resistance values are correct, try a new EMS ECU.
Refer to EMS ECU REPLACEMENT procedures
elsewhere in this section.
CONNECTION
VOLTAGE
terminal
1 with engine ground
0 V
terminal
2 with engine ground
5 V
terminal
3 with engine ground
4.5 - 5 V
R1503motr167A
3
2
1
R1503motr191A
24
39
25
www.SeaDooManuals.net
Summary of Contents for 2003 GTI LE RFI
Page 1: ...www SeaDooManuals net ...
Page 767: ...NOTE www SeaDooManuals net ...
Page 768: ...NOTE www SeaDooManuals net ...
Page 769: ...F00Z0D 2003 GTI MODEL WARNING www SeaDooManuals net ...
Page 770: ...F00Z0C 2003 GTI LE MODEL WARNING www SeaDooManuals net ...
Page 771: ...F00Z0E 2003 GTI LE RFI MODEL WARNING www SeaDooManuals net ...
Page 772: ...F00Z0J 2003 RX DI MODEL WARNING www SeaDooManuals net ...
Page 773: ...F00Z0I 2003 GTX DI MODEL WARNING www SeaDooManuals net ...
Page 774: ...F00Z0K 2003 XP DI MODEL WARNING www SeaDooManuals net ...
Page 775: ...F00Z0F 2003 GTX 4 TEC MODEL WARNING www SeaDooManuals net ...
Page 776: ...F00Z0G 2003 GTX 4 TEC MODEL WITH AUXILIARY DESS MODULE WARNING www SeaDooManuals net ...
Page 777: ...F00Z0B 2003 GTX 4 TEC AND GTX 4 TEC SUPERCHARGED MODELS WARNING www SeaDooManuals net ...
Page 779: ...www SeaDooManuals net ...