Polaris Sportsman 400 - Page 363

TEST TRANSMISSION
(SHIFT) SWITCH
REPLACE
SPEEDO
MEASURE PIN F TO
PIN B. IS BATTER Y
VOLTAGE PRESENT?
(12VDC)
CONNECT PIN B
TO PIN C. DOES
ENGINE STOP?
INSPECT WIRING
AND CDI
TEST 3 NO REVERSE SPEED LIMIT (Vehicle will exceed 7-9mph in reverse)
Y
N
Y
CHECK
SPEEDOMETER
(PERFORM TEST 2)
REMOVE6 PIN PLUG
FROM BACK OF
SPEEDOMETER HEAD
ENGINE IDLING.
MEASURE AC VOLT-
AGE BETWEEN PIN D
AND PIN B. OVER 3
VAC?
CHECK CHARGING SYSTEM(STA-
TOR, REGULATOR, AND WIRING)
N
Y
Y
N
PROCEED WITH
HARNESSTEST
NOTE: Vehicle speed (wheel) sensor is located on right front wheel.
TEST 4 NO HIGH SPEED ENGAGEMENT LIMIT
1. RAISE VEHICLE WHEELS OFF GROUND AND SUPPORT IN A SAFEMANNER.
2. REASSEMBLESPEEDO.MONITOR VOLTAGE BETWEEN BROWN/WHITEWIRE OF
HUB COIL AND VEHICLE GROUND, OR WATCH AWD LAMP.
3. TURN AWD OFF, START ENGINE, REV ABOVE 3 0 00 RPM, AND TURN AWD ON.
HUBS SHOULD NOT ENGAGE.
VOLTAGESHOULD REMAIN AT 12 VDC (AWD LAMP OFF).
4. LOWER RPM. AT APPROXIMATELY 2600 RPM, VOLTAGE SHOULD GO TO 1 VDC
AND HUBS SHOULD ENGAGE (AWD LAMP SHOULD GO ON).
REMOVE6 PIN PLUG
FROM BACK OF
SPEEDOMETER HEAD
SPEEDOMETER
FUNCTION OK?
SPEEDOMETER
FUNCTION OK?
CHECK
SPEEDOMETER
(PERFORM TEST 2)
SHIFT INTO REVERSE:
IS REVERSE LAMP ON?
LAMPOK?
N
N
REPLACE LAMP
Y
Y
TEST OVERRIDE
SWITCH
Y
N
H
H H
N
ELECTRICAL
10.29
ELECTRONIC SPEEDOMETER TROUBLESHOOTING, CONT.