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Просмотр инструкции снегоходы Ski Doo SUMMIT 2005, страница 670
Section 04 ENGINE MANAGEMENT (SDI)
Subsection 03 (COMPONENT INSPECTION, REPLACEMENT AND ADJUSTMENT)
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 terminal locations, temporarily remove 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 terminal 1 and 2 in
the wiring harness.
Voltageshouldbe5V.
Check the continuity between terminal 3 on wiring
harness TPS connector and terminal 24 on wiring
harness ECM connector.
If tests are good, replace the TPS.
If voltage tests are not good, continue to check
the resistance of the rest of the TPS circuit.
Resistance Test
Reconnect the TPS.
Disconnect the connector A from the ECM.
Using a multimeter, check resistance value as per
the following table.
ECM CONNECTOR
THROTTLE
IDLE
POSITION
WIDE OPEN
THROTTLE
POSITION
TERMINAL TERMINAL RESISTANCE
A-24 A-25 2500 1000
A-25 A-39 1600 - 2400 1600 - 2400
A-24 A-39 1000 2500
NOTE: The resistance value should change
smoothly and proportionally to the throttle move-
ment. Otherwise, replace TPS.
If resistance values are correct, try a new ECM.
Refer to ENGINE CONTROL MODULE (ECM) in
this section.
If resistance values are incorrect, replace TPS.
Replacement
Remove the throttle body as described above.
Loosen two screws retaining the TPS.
Remove TPS.
A32C9RB
1
2
TYPICAL — THROTTLE BODY
1. Throttle position sensor (TPS)
2. Screws
Install the new TPS.
Apply Loctite 243 on the TPS retaining screws,
then torque to 3 N•m(27lbf•in).
Reinstall remaining removed parts.
ProceedwiththeClosed Throttle Reset.Seebe-
low.
Closed Throttle Reset
Ensure throttle body synchronization and throttle
cable are properly adjusted prior to performing this
setting.
NOTE: This operation performs a reset of the val-
ues in the ECM.
This reset is very important. The setting of the
TPS will determine the basic parameters for all
fuel mapping and several ECM calculations in idle
speed control of the engine.
mmr2005-126 149
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