Polaris A12MH46AX User Manual

4.53
500 EFI FUEL SYSTEM
4
9923412 - 2012 Sportsman 400/500 and EFI Tractor Service Manual
© Copyright 2011 Polaris Sales Inc.
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” for setting the TPS
voltage.
Throttle Position Sensor Initialization
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.
• Set up the TPS Test Adapter Harness 2201519.
Verify that the 9 volt battery is new. Figure 2.
• (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.
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.
Apply RED meter lead to the “R” port and
BLACK meter lead to the “Y” port of TPS Tester
Harness to obtain 1.10
± .05 vdc specification.
= T
TPS Retaining Screws:
17.7 in. lbs. (2 ± 0.5 Nm)
TPS Tester Adapter
Harness- 2201519
Fig. 2
1.10v
1.10 ± .05 vdc

Polaris A12MH46AX Specifications

General

Brand	Polaris
Model	A12MH46AX
Category	Offroad Vehicle
Language	English