Polaris SPORTSMAN 400 2003 Service Manual page 247

ELECTRICAL
SPEEDOMETER TROUBLESHOOTING
TEST 2 - - NO SPEEDOMETER AND/OR ODOMETER DISPLAY
START HERE
KEY & STOP
SWITCHES ON
REPLACE
SPEEDO
Y
16PIN MEA-
N
SURE 12VDC
ON PINS 1
&8 AND 2 & 8
N
Y
ODOMETER
DISPLAY
TEST 3 - - NO REVERSE SPEED LIMIT
(VEHICLE EXCEEDS 7- - 9 MPH IN REVERSE)
START HERE
IS THE SPEEDO
READ OUT
OK?
Y
SHIFT INTO REVERSE:
IS REVERSE INDICA-
TOR ON?
Y
10.8
REPLACE
SPEEDO
Y
N
POINTER
MOVE?
REPAIR
WIRING
N
Y
TEST
ODOMETER
DRIVE
CHANGE?
VEHICLE
N
CHECK
SPEEDOMETER
(PERFORM TEST 2)
TEST TRANSMISSION
N
(SHIFT) SWITCH AND
WIRING
TURN KEY SWITCH OFF
REMOVE 16 PIN PLUG
FROM BACK OF
SPEEDOMETER HEAD
Y
3 Pin Connector
A: D.C. Power
B: Signal
C: Ground
CHECK CHECK
WHEEL SENSOR
SPEED POWER
SENSOR SUPPLY
(TEST 6) PIN A
REPLACE
SPEEDO
N
Y
SPEEDO
POINTER
OK
MOVE?
16 Pin Connector
1. Red- - 12V Constant
2. Red/White- - 12V Switched
3. Grey/Orange- - Mode/Override button
4. Black- - Ignition Kill
5. N/C
6. N/C
7. Yellow/Red- - RPM Input
8. Brown- - Ground
NOTE: Mode/Override button provides a grounding
(sinking) input to the instrument cluster.
INSPECT WIRING
AND CDI
N
RESTART ATV
H
JUMPER TO PIN 4
(BLACK) TO PIN 8
(BROWN). DOES
ENGINE STOP?
S
CHECK FOR
MINIMUM 6VDC N
REPLACE
ON PIN B TO
SPEEDO
PIN C
MEASURE
Y
BACK OF
SPEEDO WITH
S
CONNECTORS
Y
PLUGGED IN
S
AT BACK OF SPEEDO:
CHECK FOR 10- -12
VDCON PIN A TO PIN C
ON THE 3 PIN CON-
NECTOR?
N
REPLACE
SPEEDO
9. Blue White- - Engine Overheat Switch
10. Purple/Yellow- - Oil Pressure Switch
11. Orange/Red- - Park Gear
12. Purple- - Reverse Gear
13. Green/White- - Neutral
14. White/Blue- - Low Gear
15. Blue/Red- - High Gear
16. Brown/White- - AWD Control
H Measure Harness Side
Y
REPLACE
SPEEDO