10.18
ELECTRICAL
Fan Control Circuit Operation / Testing
Power is supplied to the fan via the Orange/Black wire when the
relay is ON. The ground path for the fan motor is through the
Brown harness wire. Refer to “RELAYS” later in this chapter
for more information on fan functions.
NOTE: The fan may not function or operation may
be delayed if coolant level is low or if air is trapped in
the cooling system. Be sure cooling system is full
and purged of air. Refer to Maintenance Chapter 2
for cooling system information.
Fan Control Circuit Bypass Test
1.
Disconnect harness from coolant temperature sensor on
engine cylinder head.
2.
With the transmission in Park, turn the ignition key “ON”.
The fan should start running.
3.
If the fan does not run or runs slowly, check the fan motor
wiring, ground, motor condition and mechanical relay for
proper operation. Repair or replace as necessary. If the fan
runs with the sensor harness disconnected, but will not turn
on when the engine is hot, check the coolant temperature
sensor and connector terminals.
Coolant Temperature Sensor
The coolant temperature sensor can be tested using an ohmmeter
or voltmeter.
1.
With the engine and temperature sensor at room
temperature (68
°
F = 20
°
C), disconnect the harness
connector.
2.
With the meter in the ohms mode, place the meter leads
onto the sensor contacts.
3.
Use the table Temperature / Resistance table to determine
if the sensor needs to be replaced.
NOTE: If the coolant temperature sensor or circuit
malfunctions the radiator fan will default to 'ON'.
EFI DIAGNOSTICS
EFI Component Testing
All EFI component information and diagnostic testing
procedures are located in
Chapter 4
.
Refer to Chapter 4 “Electronic Fuel Injection System (EFI)”
when diagnosing an EFI system or component.
FUEL SENDER
Testing
1.
Drain the fuel from the fuel tank.
2.
Carefully remove the fuel pump assembly from the fuel
tank (see chapter 4).
3.
Attach an ohm meter to the fuel sender harness Violet/
White wire (B) and Brown wire (C).
4.
Allow the sender float to sit in the
empty position
and
compare to specification.
5.
Slowly lift the sender float to the
full position
and compare
to specification.
6.
If the readings are out of specification, or if the reading is
erratic or LCD display “sticks”, check the following before
replacing the fuel pump assembly:
• Loose float
• Float contact with tank
• Bent float rod
If none of the conditions exist, the fuel sender assembly is faulty.
Replace the fuel pump assembly (see chapter 4).
CAUTION
Keep hands away from fan blades during
operation. Serious personal injury could result.
T
EMPERATURE
°
F (
°
C)
R
ESISTANCE
68
°
F (20
°
C)
2.5 k
Ω
±
6%
212
°
F (100
°
C)
0.186
Ω
±
2%
Fuel Sender - Empty: 5
Ω ± 5%
Fuel Sender - Full:
90 Ω ± 5%
Connection
Full: 90
Ω ±
5%
Half: 57
Ω ±
5%
Empty: 5
Ω ±
5%
Full
Empty
Содержание 2008 Ranger RZR
Страница 9: ...1 9 GENERAL INFORMATION 1 SAE Tap Drill Sizes Metric Tap Drill Sizes Decimal Equivalents ...
Страница 16: ...2 6 MAINTENANCE COMPONENT INSPECTION SERVICE LOCATIONS Front and Rear View ...
Страница 17: ...2 7 MAINTENANCE 2 RH and LH Side Views ...
Страница 42: ...3 2 ENGINE ENGINE SPECIFICATIONS Crankcase Exploded Views ...
Страница 43: ...3 3 ENGINE 3 Oil Pump Water Pump Engine Cover Exploded View ...
Страница 44: ...3 4 ENGINE Stator Cover Starter Water Pump Oil Filter Pressure Relief Exploded View ...
Страница 45: ...3 5 ENGINE 3 Cylinder Cylinder Head Piston Exploded View ...
Страница 104: ...NOTES ENGINE 3 64 ...
Страница 139: ...4 35 ELECTRONIC FUEL INJECTION 4 Fuel Injector PTO Circuit Fuel Injector MAG Circuit ...
Страница 140: ...4 36 ELECTRONIC FUEL INJECTION Engine Coolant Temperature Sensor ECT Circuit Engine Overheat Lamp Driver Circuit ...
Страница 142: ...4 38 ELECTRONIC FUEL INJECTION Throttle Position Sensor TPS Circuit Fuel Pump Circuit ...
Страница 230: ...NOTES FINAL DRIVE 7 36 ...
Страница 250: ...8 20 TRANSMISSION TRANSMISSION EXPLODED VIEWS Shift Housing Transfer Case Exploded View Transfer Case Shift Housing ...
Страница 287: ...10 17 ELECTRICAL 10 COOLING SYSTEM SCHEMATIC Cooling System Break Out Diagram ...
Страница 307: ...10 37 ELECTRICAL 10 ELECTRICAL BREAKOUT DIAGRAMS 12V Key On Power Circuit Starting System Circuit ...
Страница 308: ...10 38 ELECTRICAL Instrument Cluster Circuit Transmission Switch Circuit ...
Страница 309: ...10 39 ELECTRICAL 10 Wheel Speed Sensor Circuit AWD Circuit ...
Страница 310: ...10 40 ELECTRICAL Fuel Gauge Display Circuit Cooling Fan Circuit ...
Страница 311: ...10 41 ELECTRICAL 10 Charging System Circuit ...
Страница 312: ...NOTES ELECTRICAL 10 42 ...