Section 07
ENGINE MANAGEMENT (DI)
Subsection 03
(COMPONENT INSPECTION AND ADJUSTMENT)
07-03-24
SMR2003_024 _07_03A.FM
Start the engine and increase engine speed above
5000 RPM to be sure no fault appears.
THROTTLE POSITION SENSOR
(TPS)
General
The throttle position sensor (TPS) is a potentiom-
eter that sends a signal to the MPEM which is pro-
portional to the throttle shaft angle. On the DI sys-
tem, two sensors are used for redundancy purposes.
The MPEM compares the signals from both sensors
and determines if there is an error and uses the most
appropriate sensor to operate the system.
1. Throttle position sensor (TPS)
IMPORTANT:
Prior to testing the TPS, ensure that
mechanical components/adjustments are adequate
according to THROTTLE BODY in AIR INDUCTION
SYSTEM
above.
The MPEM may generate two types of fault codes
pertaining to the TPS. Refer to DI SYSTEM FAULT
CODES in DIAGNOSTIC PROCEDURES section
for more information.
Wear Test
While engine is not running, activate throttle and
pay attention for smooth operation without physi-
cal stops of the cable.
Using the vehicle communication kit (VCK) with the
B.U.D.S. software, use the THROTTLE OPENING
display under
Monitoring
.
Slowly and regularly depress the throttle. Observe
the needle movement. It must change gradually
and regularly as you move the throttle. If the nee-
dle “sticks”, bounces, suddenly drops or if any dis-
crepancy between the throttle movement and the
needle movement is noticed, it indicates a worn
TPS that needs to be replaced.
NOTE:
In this particular case, by comparing the
signals from both sensors, the MPEM will gener-
ate a fault code when the TPS is malfunctioning
due to specific “spots”.
To isolate the faulty TPS, disconnect one and test
the other.
Voltage Test — Both TPS
Check the MPEM voltage output on the desired
throttle position sensor.
Disconnect connector from throttle position sensor
and connect a voltmeter to the wiring harness.
Check the voltage readings on the PTO side as
follows.
Check the voltage readings on the MAG side as
follows.
1
F12F05A
1
CONNECTION
VOLTAGE
Terminal 1 with engine
ground
5 V
Terminal 2 with engine
ground
0 V
Terminal 3 with engine
ground
0 - 0.5 V
CONNECTION
VOLTAGE
Terminal 1 with engine
ground
5 V
Terminal 2 with engine
ground
0 V
Terminal 3 with engine
ground
4.75 - 5 V
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Summary of Contents for 2003 GTI LE RFI
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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 ...
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