Throttle Position Sensor Replacement; Throttle Position Sensor Initialization - Polaris A12MH46AX Service Manual

Throttle Position Sensor Replacement

NOTE: The correct position of the TPS is established and
set at the factory. If the TPS is repositioned, replaced or
loosened it must be recalibrated.
1. Remove the LH side panel assembly.
2. Disconnect sensor from the engine harness.
3. Loosen and rotate the throttle body (B) to gain access
to the retaining screws (if required).
4. Remove the retaining screws and replace the sensor,
but do not tighten the screws at this point.
5. Refer to "TPS Initialization"
voltage.

Throttle Position Sensor Initialization

The correct position of the throttle body idle
stop is established and set at the factory. Do not
loosen the throttle body idle stop or alter the
stop position in any fashion. If the stop is
repositioned, the entire throttle body assembly
must be replaced.
Establishing a TPS setting : This step is crucial as it sets
the TPS position using the fixed physical stop.
• Open and close throttle plate a couple of times to
ensure full throttle closing. Do not snap closed, as
this could cause unnecessary throttle plate to
throttle body interference and/or damage.
for setting the TPS
9923412 - 2012 Sportsman 400/500 and EFI Tractor Service Manual
© Copyright 2011 Polaris Sales Inc.
500 EFI FUEL SYSTEM
• Set up the TPS Test Adapter Harness 2201519.
Verify that the 9 volt battery is new. Figure 2.
TPS Tester Adapter
Harness- 2201519
Fig. 2
Apply RED meter lead to the "R" port and
BLACK meter lead to the "Y" port of TPS Tester
±
Harness to obtain 1.10
• (NOTE: Applies to 500 EFI ONLY) Attach the RED
meter lead to the "R" port and BLACK meter lead
to the "Y" port of the TPS Tester Harness 
2201519, verify the voltage output of the TPS
reads 1.10 ± .05 vdc.
• If it does not read 1.10 ± .05 vdc, loosen the
screws holding the TPS to the throttle body.
Rotate TPS until voltmeter reads 1.10 ± .05 vdc.
• Retighten TPS mounting screws to specification
and verify the voltage did not change.
= T
TPS Retaining Screws:
17.7 in. lbs. (2 ± 0.5 Nm)
1.10 ± .05 vdc
1.10v
.05 vdc specification.
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