Snowmobile Polaris IQ (2007-2008 year). Manual - part 76

11.16

Battery and Electrical Systems

2007 600 HO Regulator / Rectifier

This regulator / rectifier performs the following functions:

• Regulates AC Voltage to 14.3 volts.

• Provides regulated DC voltage to power the MFD 

gauge.

• Provides regulated DC voltage to charge the battery, if 

equipped.

• Illuminates the MFD brake LED indicator by grounding 

the MFD circuit whenever the module receives an Vac 
brake light signal (operator pulls brake lever).

Replace the regulator / rectifier whenever the following occurs:

• AC voltage is over 14.8 volts when the engine is 

running.

• No DC voltage found on the RED/WHT or RED 

circuits when the engine is running.

• The brake lights illuminate when the brake lever is 

pulled, but the LED indicator does not.

2008 RMK Shift 155 Regulator / Rectifier

The RMK Shift regulator / rectifier performs the same functions
as the 2007 600 HO regulator / rectifier.

Circuit Specifications

PLUG / PIN / COLOR FUNCTION

STATOR / 2 / BROWN GROUND

STATOR / 3 / 
YELLOW

AC POWER INPUT

STATOR / 4 / BROWN GROUND

STATOR / 6 / 
YELLOW

AC POWER INPUT

HARNESS / A / 
YELLOW

REGULATED AC POWER

HARNESS / B / ORG/
BLK

DC BRAKE LAMP GROUND

HARNESS / C / 
ORANGE

AC BRAKE SIGNAL INPUT

HARNESS / D / BRN/
WHT

DC GROUND

HARNESS / F / 
BROWN

AC GROUND

HARNESS / G / 
YELLOW

REGULATED AC POWER

HARNESS / J / RED/
WHT

REGULATED DC MFD POWER

HARNESS / K / RED REGULATED DC BATTERY POWER

HARNESS / M / 
BROWN

AC GROUND

METAL TAB

GROUND PLATE

Circuit Specifications

PLUG / PIN / COLOR FUNCTION

1 / YEL/BLK

AC POWER INPUT

2 / YEL/BLK

AC POWER INPUT

4 / RED

VDC (BATTERY CHARGE)

5 / RED/WHT

VDC (REGULATED FOR MFD)

6 / ORANGE

AC BRAKE SIGNAL

7 / YELLOW

REGUALTED VAC

8 / YELLOW

REGULATED VAC

9 / BROWN

GROUND

10 / BROWN

GROUND

13 / BRN/WHT

DC GROUND

14 / ORG/BLK

DC BRAKE LAMP GROUND (MFD)

15 / BROWN

AC GROUND

16BROWN

AC GROUND

Circuit Specifications

11.17

Battery and Electrical Systems

11

2008 IQ Shift Regulator / Rectifier

The regulator rectifier on a 2008 IQ Shift limits AC Voltage to
14.3 volts. The module also supplies 12 Vdc to power the
exhaust valve solenoid.

Replace the regulator / rectifier if the AC Voltage is above 14.8
V or when there is no 12 Vdc supply on the RED / GREEN
circuit.

DETONATION CONTROL (DET)

Overview

Detonation control is achieved by using a knock sensor mounted
to the cylinder head and an ECU (CFI engines) or the CDI
(600HO engines).

The knock sensor “listens” for combustion knock by converting
internal engine noise in to an electrical signal. The ECU or CDI
uses the signal to determine the level of knock within the
combustion chambers after each combustion event.

When the ECU or CDI determines detonation has occurred, the
CHECK ENGINE / DET LED lamp will blink on and off at 0.5
second intervals.

On CFI models, the ECU will retard timing and provide
additional fuel to eliminate the detonation. On carbureted
engines, the CDI will retard timing until the detonation stops. If
the detonation continues past a pre-determined level, the ECU
or CDI will initiate an engine mis-fire mode.

To prevent detonation, follow these steps:

• Always use premium fuel (91, 92, or 93 octane)

• On carbureted engines, follow the carburetor jetting 

guidelines

• Do not modify the engine or exhaust system with non-

approved Polaris modifications

• Verify there is no water or foreign material in the fuel

• Verify there is no internal engine damage

• Verify the cooling system is working properly

NOTE: Install the knock sensor fastener clean and
dry without applying thread locker or oils.

VARIABLE EXHAUST SYSTEM (VES)

Overview

The Polaris VES system uses exhaust valves (1 per cylinder) to
control the exhaust port height. The valves are actuated by
controlling cylinder pressure with a solenoid, bellows, and a
series of hoses.

At idle speed and up to a pre-determined level, the solenoid is
powered by the ECU or CDI. This action opens the solenoid’s
internal valve and allows the cylinder pressure to vent into the
atmosphere. During this time the valves are down.

To raise the valves, the ECU or CDI will cut power to the
solenoid which will close the vent path to atmosphere. The
cylinder pressure will then act upon each valve bellows which
will raise each valve.

On CFI engines the timing at which the solenoid is turned off is
determined by engine RPM, TPS position, and pipe
temperature. On carbureted engines, the CDI will turn the
solenoid off at 6700 RPM when the throttle flipper is at least
3/4 throttle or at 7200 RPM when the throttle flipper is at least
1/2 throttle.

NOTE:  Solenoid Powered = Vent Path Open

Solenoid Off = Vent Path Closed

Circuit Specifications

PLUG / PIN / COLOR FUNCTION

YELLOW

REGULATED 14.3 Vac POWER

RED/GREEN

EXHAUST VALVE SOLENOID 
POWER (Vdc)

BROWN

GROUND

11.18

Battery and Electrical Systems

DIAGNOSTIC PLUGS

IQ Chassis Power Plug

IQ models (CFI and carbureted) feature a chassis power
diagnostic plug. Connect the plug to the M-10 ACE / ECU-
Chassis Power-Up cable, PN PA-46355 and a fully charged 12-
volt battery. The plug consists of two wires (BRN and RED/
WHT).

Once powered, all of the RED/WHT chassis power circuits will
be powered with battery voltage. The circuits include:

• Head / Tail / Brake Lamps

• MFD (Multi Function Display)

• Accessory Power Plugs

• Hand / Thumb Warmers

IQ CFI Fuel Pump Prime Plug

IQ CFI models feature a fuel pump prime plug. Use the fuel
pump prime plug to power-up the fuel pump when purging the
fuel system of air or when testing fuel pump pressure.

The fuel pump prime plug consists of two wires (BRN and
RED).

ELECTRONIC REVERSE (PERC)

Overview

Some models are equipped with Polaris electric reverse control
(PERC). The operation of the electronic reverse system is
achieved by automatically reversing the engine rotation with a
push of a button. When in reverse you will have an indicator
light that will flash, notifying you that the machine is in the
reverse mode. The design of the clutches are matched to the
specifications that will allow the backwards rotation of the
engine to move the sled in reverse. To get back to forward is as
easy as pushing the button again.

Operation

1.

Ensure that the vehicle is stopped and the engine is
warmed up and running at idle. 

NOTE:  The system will only engage in reverse if the
engine is below 4000 RPM. If engine is above 4000
RPM the system can not be activated.

2.

Ensure that the path behind you is clear.

3.

Push and hold the yellow reverse button on the left hand
control for 1 second and then release the button. The reverse
light on the instrument panel will flash when engine is in
reverse motion.

NOTE:  The engine will automatically reduce RPM
and it will reverse the rotation of the engine when the
RPM is at the lowest RPM point.

4.

Ensure that the path behind you is clear.

5.

Slowly apply throttle until the sled starts to move in reverse,
and carefully direct the sled in the direction that you want. 

NOTE:  Maximum RPM in reverse is 6000 RPM.

FUEL PUMP

PRIME PLUG

CHASSIS POWER-UP

(2- WIRE CONNECTOR)

WARNING

Reverse operation, even at low speeds, may cause 

loss of control, resulting in serious injury or death. To 

avoid loss of control, always: 

LOOK BEHIND BEFORE AND WHILE BACKING.

AVOID SHARP TURNS. 

SHIFT TO OR FROM REVERSE ONLY WHEN 

STOPPED. 

APPLY THROTLE SLOWLY.

CAUTION

To avoid personal injury and/or engine damage, do not
operate the electric start or recoil while engine is
running.

11.19

Battery and Electrical Systems

11

NOTE: If the engine stops running or is shut off
while in reverse. The engine will start in forward
gear.

FORWARD OPERATION

1.

If unit was operated in reverse, ensure that the path ahead
is clear, and push an hold the reverse button for 1 second
and then release the button. The engine will now
automatically change direction form reverse to forward
and the reverse light on the instrument panel will stop
flashing.

NOTE:  When servicing clutches, ensure that the
vehicle is in forward gear. If not damage to the
driven clutch may occur when removing the belt.

Altitude Setting

If your engine is carbureted, you can adjust the elevation setting
of the Polaris electric reverse control (PERC). If your engine is
a Cleanfire system, this is automatically done through the
engine controller unit (ECU), and you do not need to do any
setting.

At higher elevations over 6000 ft (1829m), the engine requires
a different ignition RPM setting to improve the operation of the
reverse system.

To set the altitude settings:

1.

With the engine running, push and hold the reverse button
for 5 - 6 seconds and then release the button.

2.

The reverse light will flash rapidly on the instrument panel.

3.

You have now set the PERC system to the higher elevation
setting. 

4.

To go back to the low elevation setting repeat step 1. The
reverse light will flash slowly indicating that the system is
now in the lower elevation setting.

NOTE:  The elevation setting will be set in the
memory (engine running or not) until it is changed.

Important Notes

• Max RPM for shifting into reverse = 4000 RPM

• Max RPM for operating in reverse = 6000 RPM

• Engine must first reach 900 RPM at start up before the 

reverse system can be used. The system works between 
900 and 4000 RPM.

• If the button is pushed above 4000 RPM the system is 

bypassed and nothing will happen.

• Flashing light on the instrument panel indicates that the 

system is in reverse. On carbureted units a slow flash 
indicates that the system is set for low elevation, and a 

fast flash indicates the system is set up for high 
elevation. Push and hold the reverse button for longer 
than 5 seconds to toggle back and forth from high and 
low elevation settings. On Cleanfire units this is 
automatically done through the engine controller unit 
(ECU).

• Elevation above 6000 ft (1829m) requires a different 

timing curve to eliminate a “kick-back” effect.

• If engine is shut off or dies in forward or reverse gear, 

the engine when started will automatically be in 
forward gear.

• When servicing clutches, ensure that the vehicle is in 

the forward gear.