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Просмотр инструкции снегоходы Ski Doo SUMMIT 2005, страница 281
Section 06 ENGINE MANAGEMENT (SDI)
Subsection 03 (COMPONENT INSPECTION, REPLACEMENT AND ADJUSTMENT)
Removal
Remove air intake silencer.
Disconnect the wiring harness from all sensors/
actuators.
Disconnect the connector from the ECM.
Cut all locking tie which are holding the wiring har-
ness in position.
Remove complete wiring harness.
Installation
First connect the connector A to the ECM and the
engine connector to the vehicle wiring harness.
Reconnect the wiring harness to all sensors/actu-
ators and reinstall all locking tie that have been re-
moved.
Install all remaining parts, which have been re-
moved.
THROTTLE POSITION SENSOR
(TPS)
General
The throttle position sensor (TPS) is a potentiome-
ter that sends a signal to the ECM which is propor-
tional to the throttle shaft angle.
A32C9RA
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 ECM may generate several fault codes per-
taining to the TPS. Refer to 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. Ob-
serve the needle movement. It must change
gradually and regularly as you move the throttle.
If the needle “sticks”, bounces, suddenly drops
or if any discrepancy between the throttle move-
ment and the needle movement is noticed, it
indicates a worn TPS that needs to be replaced.
Voltage Test
Check the voltage output from ECM to the throttle
position sensor.
3
A32C9SA
21
TPS
Disconnect plug connector from throttle position
sensor. To unlock connector, insert a small screw-
driver between the folded tab. To see the con-
nector pin-out and its pin numbers, temporarily re-
move the connector shield joining the harness.
Install the tether cord cap, turn OFF engine cut-out
switch and push START/RER button momentarily
to activate the ECM.
Connect a voltmeter between pin 1 and 2 in the
wiring harness.
Voltageshouldbe5V.
266 mmr2005-081
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