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10-1910-19
Radiator and Fan Replacement
B
A
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)
AB
C
A
C
C C
5. Install the harness holder bracket (A), then install
the harness holder (B).
6. Install the air cleaner assembly (see page 11-345).
7. Refill the radiator with engine coolant, and bleed the air from the cooling system with the heater
valve open (see step 6 on page 10-8).
8. Clean up any spilled engine coolant. 1. Do the battery removal procedure (see page 22-69).
2. Drain the engine coolant (see page 10-8).
3. Remove the front grille cover (see page 20-163).
4. Disconnect the fan motor connectors (A) and the
hood switch connector (B), then remove the
harnessclamps(C).
(cont’d)
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Page 312 of 2893
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10-1910-19
Radiator and Fan Replacement
B
A
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)
AB
C
A
C
C C
5. Install the harness holder bracket (A), then install
the harness holder (B).
6. Install the air cleaner assembly (see page 11-345).
7. Refill the radiator with engine coolant, and bleed the air from the cooling system with the heater
valve open (see step 6 on page 10-8).
8. Clean up any spilled engine coolant. 1. Do the battery removal procedure (see page 22-69).
2. Drain the engine coolant (see page 10-8).
3. Remove the front grille cover (see page 20-163).
4. Disconnect the fan motor connectors (A) and the
hood switch connector (B), then remove the
harnessclamps(C).
(cont’d)
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Page 314 of 2893
Î Î
10-21
BA
C
A B
6x1.0mm
10 N·m (1.0 kgf·m, 7.2 lbf·ft)
A
6x1.0mm
10 N·m (1.0 kgf·m, 7.2 lbf·ft) C
9. Disconnect the engine coolant temperature (ECT)
sensor 2 connector (A), and remove the harness
clamp (B).
10. Disconnect the lower radiator hose (C) from the radiator.
11. A/T model: Disconnect the automatic transmission fluid (ATF) cooler hoses (A), then plug the lines and
the hoses. 12. Lower the vehicle on the lift.
13. Remove the condenser bracket mounting bolts (A)
and the bulkhead mounting bolts (B), then remove
the bulkhead (C).
(cont’d)
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Page 315 of 2893
10-22Cooling System
Radiator and Fan Replacement (cont’d)
RADIATOR FAN MOTOR
6x1.0mm
7 N·m
(0.7 kgf·m, 5 lbf·ft) RADIATOR FAN
UPPER RADIATOR HOSE
LOWER RADIATOR HOSE
O-RING
RADIATOR CAP
RADIATOR
O-RING LOWER CUSHION
DRAIN PLUG
6x1.0mm
7 N·m
(0.7 kgf·m, 5 lbf·ft)
A/C CONDENSER
FAN/SHROUD ASSEMBLY
RADIATOR FAN SHROUD
ENGINE COOLANT TEMPERATURE
(ECT) SENSOR 2
12 N·m (1.2 kgf·m, 8.7 lbf·ft)
3.85 N·m
(0.393 kgf·m, 2.84 lbf·ft)
6.0 N·m
(0.61 kgf·m, 4.4 lbf·ft)
QUICK CONNECTOR
O-RING
14. Pull up the radiator, then remove the fan shroud assemblies and other parts from the radiator.
15. Install the radiator in the reverse order of removal. Make sure the upper and lower cushions are set securely.
16. Connect the lower radiator hose to the radiator.
17. Install the bulkhead in the reverse order of removal. Apply body paint to the bulkhead mounting bolts.
18. Do the battery installation procedure (see page 22-69).
19. Fill the radiator with engine coolant, and bleed the air from the cooling system with heater valve open (see step 6 on page 10-8).
20. Clean up any spilled engine coolant.
Replace. Replace.
Replace.
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Page 316 of 2893
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10-23
Fan Controls
Component Location Index
FAN CONTROL RELAY
UNDER-HOOD FUSE/RELAY BOX
RADIATOR FAN RELAY
A/C CONDENSER FAN ASSEMBLY RADIATOR FAN ASSEMBLY ENGINE COOLANT TEMPERATURE
(ECT) SENSOR 2ENGINE COOLANT TEMPERATURE
(ECT) SENSOR 1
A/C CONDENSER FAN RELAY
Test, page 22-70
Test, page 22-70
Motor Test, page 10-5
Replacement, page 10-19 Motor Test, page 10-5
Replacement, page 10-19 Replacement, page 11-225Replacement, page 11-225
Test, page 22-70
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Page 317 of 2893
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Symptom Diagnostic Procedure Also check for
10-24
Fan Controls
Symptom Troubleshooting Index
Engine overheats
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12. Check the coolant level.
Check for engine coolant leakage (from gaskets,
hoses, O-rings, etc.).
Check for dirt, leaves, or insects on radiator
and A/C condenser.
Check for deteriorated coolant.
Check for a damaged or deformed fan shroud.
Inspect the fan motors (see page 10-5) or fan
relays (see page 22-70).
Check the radiator cap (see page 10-4).
Check the thermostat (see page 10-5).
Inspect the water pump (see page 10-6).
Check for a clogged or deteriorated radiator
hoses.
Check for clogged heater core or hoses.
Check for a damaged cylinder head gasket.
The radiator fan does not run at
high speed Radiator fan high speed circuit troubleshooting
(see page 10-26). Cleanliness and
tightness of all
connectors
Both the radiator fan and the A/C
condenser fan do not run at low
speed Radiator and A/C condenser fans low speed circuit
troubleshooting (see page 21-56).
Cleanliness and
tightness of all
connectors
The A/C condenser fan does not
runathighspeed A/C condenser fan high speed circuit troubleshooting
(see page 21-60). Cleanliness and
tightness of all
connectors
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Page 318 of 2893
Î
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10-25
Circuit Diagram
ECT2
SG6
SG2
ECT1 FANH
FANL
SUBRLY IG2HOTinON(II)
PNK
5V No. 15 (7.5 A)
A21
PUR
ECM/PCM
2G301
BLK
2
1
No. 11 (15 A)
(10 A) No. 36
B23
RED/WHT GRN/BLK B33
BLU GRY
BRN
A33
BLK GRN A9 IGNITION SWITCH
IG2
BAT
RED
3
2 5
4 1
A4
A5 13
4
2
1 2 23 4
1 No. 2 (50 A)
BLK
UNDER-HOOD FUSE/RELAY BOX
BATTERY
G301No. 1 (100 A)
No. 6 (20 A)
A/C
CONDENSER
FAN RELAY
ENGINE COOLANT
TEMPERATURE
(ECT) SENSOR 1
A/C
CONDENSER
FAN MOTOR
FAN
CONTROL
RELAY
RADIATOR
FAN
MOTOR
ENGINE COOLANT
TEMPERATURE
(ECT) SENSOR 2 RADIATOR
FAN
RELAY
PGM-FI
SUB RELAY
H1
3 4
ORN
G12
D1
F16
F7
F2
F12
F14
F1
F11 No. 7 (20 A)
21
1 UNDER-DASH
FUSE/RELAY
BOX
BRN
WHT
43
12 C3
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Page 329 of 2893
ØÚÓ
Î
How to Troubleshoot Circuits at the ECM/
PCM Connectors
11-6 Fuel and Emissions Systems
General Troubleshooting Information (cont’d)
A
D E
B
A
C A
B D
C
A
NOTE: The ECM/PCM overwrites data and monitors the
EVAP system for about 30 minutes after the ignition
switch is turned to LOCK (0) or ACC (I). Jumping the
SCS line after turning the ignition switch to LOCK (0) or
ACC (I) cancels this function. Disconnecting the ECM/
PCM during this function, without jumping the SCS line
first, can damage the ECM/PCM.
1. Make sure the ignition switch is turned to LOCK (0), then jump the SCS line with the HDS.
2. Remove the cover (A).
3. Lift up the under-hood fuse/relay box (D).
4. Remove the coolant reservoir (E). Disconnect ECM/ PCM connectors A, B, and C, and probe the
terminals from the terminal side of the connectors.
NOTE: ECM/PCM connectors A, B, and C have
symbols (A= , B= , C= ) embosed on them for
identification. 5. When diagnosis/troubleshooting is done at the
ECM/PCM connector, use the terminal test port (A)
above the terminal you need to check.
6. Connect one side of the patch cord’s terminals (A) to a commercially available digital multimeter (B),
and connect the other side cord’s terminals (C) to a
commercially available banana jack (Pomona
Electronics Tool No. 3563 or equivalent) (D).
7. Gently contact the pin probe (male) at the terminal test port from the terminal side. Do not force the
tips into the terminals.
For accurate results, always use the pin probe (male).
To prevent damage to the c onnector
terminals, do not insert test equipment
probes, paper clips, or other substitutes as
they can damage the terminals. Damaged
terminals cause a poor connection and an
incorrect measurement.
Do not puncture the insulation on a wire. Punctures can cause poor or intermittent
electrical connections.
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