1413 12 1110
5
1
2
3
4
6
7
8
9
J
L
K
I
G
D
C
B
E
F
A
86
86
30
87
85
86
86
87
87
87
30
30
30
85
85
85
2
2
3
3
5
5
1
1
1
2
5 3
1
2
5 3
86
87
30
1
1
2
5
3
2
5
3
85
EF01
EF21
EF18
EF25
EF20
EF29
EF06
EF02
EF30
EF17
EF19
EF23
EF22
EF26
EF24
EF08
EF27
EF28
EF05
EF07
EF16
EF04
EF03
EF15
EF12
EF10
EF1
1
EF09
EF13
EF14
EF32
EF31
A
86
87
30
85
1
2
3
Cooling Fan Harness Connector CA16
FE02-7804b
(a)
Turn the ignition switch to "OFF" position.
(b)
Remove the High-Speed cooling fan relay.
(c)
Disconnect cooling fan wiring harness connector CA16.
(d)
Test continuity between high speed cooling fan relay A
terminal No.30 and cooling fan wiring harness connector
CA16 terminal No.2.
(e)
Measure resistance between high speed cooling fan relay A
terminal No.30 and a reliable ground. check whether the
circuit is short to ground.
Standard Value:
Test Items
Specified Value
Resistance Between Relay A (30) and
CA16 (2)
Less than 1 Ω
Resistance Between Relay A (30) and
A Reliable Ground
10 kΩ or higher
Are measured values specified values?
No
Circuit between cooling fan relay terminal No.
30 and wiring harness connector CA16
terminal No.2 is faulty. check and Repair the
faulty part.
Yes
Step 7
Replace high speed cooling fan relay A. Confirm whether the fault has been fixed.
Step 8
Check high speed relay A coil power supply.
1413 12 1110
5
1
2
3
4
6
7
8
9
J
L
K
I
G
D
C
B
E
F
A
86
86
30
87
85
86
86
87
87
87
30
30
30
85
85
85
2
2
3
3
5
5
1
1
1
2
5 3
1
2
5 3
86
87
30
1
1
2
5
3
2
5
3
85
EF01
EF21
EF18
EF25
EF20
EF29
EF06
EF02
EF30
EF17
EF19
EF23
EF22
EF26
EF24
EF08
EF27
EF28
EF05
EF07
EF16
EF04
EF03
EF15
EF12
EF10
EF1
1
EF09
EF13
EF14
EF32
EF31
A
86
87
30
85
FE02-7805b
(a)
Turn the ignition switch to "OFF" position.
(b)
Remove the High-Speed cooling fan relay A.
(c)
Turn the ignition switch to "ON" position.
(d)
Measure voltage between high speed cooling fan relay A
terminal No.85 and a reliable ground.
Standard Voltage: 11-14 V
Is the voltage specified value?
No
Circuit between relay terminal No.85 and
main relay terminal No.3 is open.
Yes
Step 9
Check high speed relay A control circuit.
Engine
Engine Cooling System JL4G15-D
2-843
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
Page 4: ......
Page 330: ...Next Step 10 End 2 248 Fuel System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Page 1164: ......
Page 2008: ......