Polaris 2005 Sportsman MV7 Service Manual page 268

ELECTRICAL
SPEEDOMETER TROUBLESHOOTING
TEST 4 - - NO AWD HUB SAFETY LIMIT
NOTE: IF THE AWD ICON DOES NOT COME ON OR IF 12
VDC IS NOT REGISTERING AND AWD IS ENGAGING
ABOVE 3100 RPM,IT MAY BE A MECHANICAL PROBLEM.
Y
HOLD UNTIL DISPLAY STABILIZES.
1. RAISE ATV WHEELS OFF GROUND AND
SUPPORT IN A SAFE MANNER.
2. MONITOR VOLTAGE AT HUB COIL
CONNECTOR, BETWEEN BROWN/WHITE
AND GROUND
TURN
AWD OFF.
START THE ENGINE
REV AND HOLD THE
RPM'S ABOVE 3100.
TURN AWD ON.
DOES FRONT
DRIVE
ENGAGE?
Y
IS THE
AWD ICON ON?
N
MECHANICAL PROBLEM
10.12
ATV IN NEUTRAL
TOGGLE TO TACHOMETER
SETTING & REV ENGINE.
DOES IT APPEAR
ACCURATE?
N
TURN KEY SWITCH OFF
REMOVE 16 PIN
CONNECTOR FROM
INSTRUMENT
CLUSTER.
N
NO PROBLEM
Y
START HERE
SPEEDO
Y
FUNCTIONING
CORRECTLY?
MEASURE AC VOLTAGE
BETWEEN PIN 7 AND
BACK OF
16 Pin Connector
1. Orange/White- - 12V Constant
2. Red/White- - 12V Switched
3. Grey/Orange- - Mode/Override button
4. Black- - Ignition Kill
5. Green
6. Blue
7. Yellow/Red- - RPM Input
8. Brown- - Ground
INSPECT
HUB COIL WIRING
FOR SHORT CIRCUITS
TO GROUND. (DISCONNECT
CONNECTOR & MEASURE
BETWEEN HUB COIL
BROWN/WHT
& GROUND.)
Y
REPAIR HUB COIL WIRING
IS
N
CHECK
SPEEDO
(TEST NO. 2)
RESTART ATV
ENGINE IDLING
Y
PIN 8.
OVER 3 VAC?
N
CHECK CHARGING SYSTEM
(STATOR, REGULATOR,
AND WIRING)
9. Blue White- - Engine Overheat Switch
10. N/C
11. N/C
12. Purple /White- -Fuel Sender (not used)
13. Brown / Red- - Neutral
14. White
15. N/C
16. Brown/White- - AWD Coil
N
REPLACE
SPEEDOMETER
REPLACE
SPEEDOMETER