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8-46
YESNO
4. Radiator fan motor
Disconnect the radiator fan motor coupler
from the wire harness.
Connect the battery (DC 12 V) as shown.
The radiator fan mo-
tor is faulty and must
be replaced.
Positive battery lead blue
Negative battery lead black1
2
Does the radiator fan motor turn?
5. Radiator fan motor relay
Disconnect the radiator fan motor relay
form the wire harness.
Connect the pocket tester (Ω 1) and bat-
tery (12 V) to the radiator fan motor terminal
as shown.
Check the radiator fan motor for continuity.
Replace the radiator
fan motor relay.
NOYES
Battery positive terminal red / white
Battery negative terminal
green / yellow 1
2
Does the radiator fan motor relay have conti-
nuity between red and brown / green?
Tester positive probe red
Tester negative probe brown / green3
4
COOLING SYSTEMELEC
EAS00809
ProCarManuals.com
Page 440 of 457
8-47
COOLING SYSTEMELEC
Remove the coolant temperature sensor.
Connect the pocket tester (Ω 1k) to the
coolant temperature sensor as shown.
Immerse the coolant temperature sensor in
a container filled with coolant .
Make sure the coolant temperature sensor
terminals do not get wet.
Place a thermometer in the coolant.
Slowly heat the coolant, and then let it cool to
the specified temperature indicated in the
table.
Check the coolant temperature sensor for
continuity at the temperatures indicated in
the table.
EAS00812
1
Coolant temperature sensor
resistance
0C (32F): 5.21 6.37 kΩ
80C (176F): 0.29 0.35 kΩ
WARNING
Handle the coolant temperature sensor
with special care.
Never subject the coolant temperature
sensor to strong shocks. If the coolant
temperature sensor is dropped, replace
it.
6. Coolant temperature sensor
Replace the coolant
temperature sensor.
NOYES
Coolant temperature sensor
20 Nm (2.0 mkg, 14 ftlb)
Three bond sealock
10
Does the coolant temperature sensor oper-
ate properly?
7. Wiring
Check the entire cooling system’s wiring.
Refer to “CIRCUIT DIAGRAM”.
Is the cooling system’s wiring properly con-
nected and without defects?
Properly connect or
repair the cooling
system’s wiring.
NOYES
This circuit is OK.
EAS00813
2
NOTE:
3
ProCarManuals.com
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9-4
OVERHEATING / OVERCOOLING /
POOR BRAKING PERFORMANCETRBL
SHTG
FUEL SYSTEM
Throttle body (-ies)
Damaged or loose throttle body joint
Air filter
Clogged air filter element
CHASSIS
Brake(s)
Dragging brake
ELECTRICAL SYSTEMS
Spark plug(s)
Incorrect spark plug gap
Incorrect spark plug heat range
Ignition system
Faulty E.C.U.
Loose union bolt
Damaged brake hose
Oil or grease on the brake disc
Oil or grease on the brake pad
Incorrect brake fluid level
EAS00855
OVERHEATING
ENGINE
Clogged coolant passages
Cylinder head(s) and piston(s)
Heavy carbon buildup
Engine oil
Incorrect oil level
Incorrect oil viscosity
Inferior oil quality
COOLING SYSTEM
Coolant
Low coolant level
Radiator
Damaged or leaking radiator
Faulty radiator cap
Bent or damaged radiator fin
Water pump
Damaged or faulty water pump
Thermostat
Thermostat stays closed
Oil cooler
Clogged or damaged oil cooler
Hose(s) and pipe(s)
Damaged hose
Improperly connected hose
Damaged pipe
Improperly connected pipe
EAS00856
OVERCOOLING
COOLING SYSTEM
Thermostat
Thermostat stays open
EAS00857
POOR BRAKING PERFORMANCE
Worn brake pad
Worn brake disc
Air in hydraulic brake system
Leaking brake fluid
Faulty brake caliper kit
Faulty brake caliper seal
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