Table of Contents
Advertisement
2-470
Cooling System JL4G18-D
86
2
J
1
L
87
30
5
85
3
1
2
K
1
I
5 3
5
2
3
87
Yes
Check the circuit between low-speed cooling fan relay and cooling fan wiring harness connector CA16.
Step 6
Cooling Fan Harness Connector CA16
86
2
J
1
L
87
30
5
85
3
1
2
K
1
I
5 3
5
2
3
87
Yes
Replace the cooling fan low speed relay B. Confirm whether the fault has been fixed.
Step 7
Check low-speed relay B coil power supply.
Step 8
EC718/EC718RV EC715/EC715RV 10/2009
EF28
EF27
EF08
1
G
5 3
2
30
EF01
86
F
85
87
86
87
E
30
87
85
86
1413 12 11 10
B
30
87
9
8
6
5
7
85
4
3
2
1
FE02-7808b
1
2
3
EF28
EF27
EF08
1
G
5 3
2
30
EF01
3
86
85
F
87
3
86
86
E
30
87
87
85
85
86
1413 12 11 10
86
30
B
87
9
8
6
5
7
85
85
4
3
2
1
FE02-7809b
(a)
Turn the ignition switch to "OFF" position.
(b)
Remove the low-speed cooling fan relay B.
(c)
Measure voltage between cooling fan relay B terminal No.87
and a reliable ground.
Standard Voltage: 11-14 V
2
3
D
5
1
Is the voltage specified value?
2
3
5
C
1
86
No
B
30
85
86
A
30
85
(a)
Turn the ignition switch to "OFF" position.
(b)
Remove low-speed cooling fan relay.
(c)
Disconnect cooling fan wiring harness connector CA16.
(d)
Test the continuity between the Low-Speed cooling fan relay
B terminal No.30 and cooling fan wiring harness connector
CA16 terminal No.1.
(e)
Measure resistance between cooling air speed relay B
terminal No.30 and a reliable ground. check whether there is
a short to ground circuit.
Standard Value:
Relay B (30)-CA16 (1)
Resistance Between Relay B (30) and
A Reliable Ground
2
5
D
1
Is the voltage specified value?
2
5
C
1
B
30
No
A
30
Relay B terminal No.87 power circuit is faulty.
Inspect and repair the faulty parts.
Test Items
Circuit between the relay terminal No.30 and
the cooling fan wiring harness connector
CA16 terminal No.1 is faulty. Check and
Repair the faulty part.
Engine
Specified Value
Less than 1 Ω
10 kΩ or higher
Advertisement
Chapters
Table of Contents
