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Cooling Fan (2GR-FE)

The document describes the cooling fan system on a 2GR-FE engine. It has two fans - one main fan and one sub fan, each controlled by its own relay and ECU. The ECUs receive signals from sensors monitoring engine coolant temperature and switch power to the fans as needed for cooling. Wiring diagrams show the electrical connections between the fans, ECUs, sensors and relays.

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0% found this document useful (0 votes)
662 views7 pages

Cooling Fan (2GR-FE)

The document describes the cooling fan system on a 2GR-FE engine. It has two fans - one main fan and one sub fan, each controlled by its own relay and ECU. The ECUs receive signals from sensors monitoring engine coolant temperature and switch power to the fans as needed for cooling. Wiring diagrams show the electrical connections between the fans, ECUs, sensors and relays.

Uploaded by

ISAAC SIDIBE
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Cooling Fan <2GR-FE>

(BAT) (IG) (BAT)

50A 10A 50A


FAN2 ECU–IG1 FAN1

2 2

2 24 IB 2

L
9
A37
Junction Connector

(∗1)
R
1
L

L
(∗1)

2 2 2 2
∗ 1 : w/ Trailer Towing
∗ 2 : w/o Trailer Towing
3 1 1 3

FAN NO. 1 FAN NO. 2


Relay Relay

5 2 2 5

2 2 2 2

L W–B L
W–B

(∗2) (∗1) (∗1)

L
(∗1)

1
3 +B1
+B1
M+(M) M
M+ M
Main Fan
Motor Fan
Motor
M–(M)

M–
M+(S) M
Cooling Fan ECU

Sub Fan
Motor E1 SI

M–(S) 3 2 A31
A30

Cooling Fan
E1 SI ECU (RH)
W–B
(∗1)

(∗1)
R

1 2

R
W–B

(∗1)
(∗2)

(∗2)
R

R
(∗2)

W–B W–B W–B


(∗2) (∗1) (∗1)
W–B

W–B

A4 A3

-1-
Cooling Fan <2GR-FE>

L
(∗1)
(∗1)
L

1
+B2

M+ M

Fan 1 A
Motor
Engine Coolant
Temp. Sensor

M–
B4(A)

2 A
E1 SI2
3 2 A32
Cooling Fan
ECU (LH)
W–B
(∗1)

(∗1)

BR
R

11
Connector
Junction

R 10
A39

(∗1)
9

79 B 78 B
R THW ETHW
(∗2) A9(A), B30(B)
R

Engine Control Module


W–B
(∗1) RFC
43 A

-2-
Cooling Fan <2GR-FE>

E68
Junction Connector

3 14 5 16

(∗4)

(∗4)

(∗3)

(∗3)
W

W
V

V
∗ 3 : Automatic A/C
8 9 11 12 ∗ 4 : Manual A/C
∗ 5 : Shielded

A/C Amplifier

A/C Amplifier
CANH CANL CANH CANL

S5–3 PRE SG–2 S5–3 PRE SG–2

E36

E37
7 12 10 10 9 13
(∗4)

(∗4)

(∗4)

(∗3)

(∗3)

(∗3)
G

G
B

B
L

L
W
L

4 AE7 3 AE7 9 AE7 4 AE7 3 AE7 9 AE7


(∗4)
G

(∗3)
G
7 7
Connector

Connector
Junction

Junction
11 AE4 19 AE4
A40

A40
6 6
(∗3)

(∗3)

(∗3)
G
B

L
(∗4)

(∗4)

(∗4)
G
B

3 2 1 3 2 1
A/C Pressure

A/C Pressure
+ PR – + PR –
W
L

Sensor

Sensor
A21

A21
A36
3 14 Junction Connector

2 13 1 12
Speed Sensors
W
R

2
Position Sensor

LG

G
R
V

B
Crankshaft

11 25 18 4 3 17 20 6 5 19
B46

1 CANH CANL FL+ FL– FR+ FR– RL+ RL– RR+ RR–
(∗5)

SP1
W

R
Y

A19 12
Skid Control ECU with Actuator

41 A 49 A 110 B 111 B
CANH CANL NE+ NE– V
A9(A), B30(B)
Engine Control Module
BR

SPD
8 A

10
V V V
AE4

B3

-3-
Cooling Fan <2GR-FE>

E68
Junction Connector

(IG) (BAT)

7. 5A 10A
1 12 GAUGE2 ECU–B

2
W
O

1 IM 2

3 14
Connector
Junction
E70

46 3B 12 IH

R
2 13

B
22 3A 30 IB

R
W
V

21 22
IG+ B

4 15
Connector
Junction
E69

5 16
CPU
W
G

Combination Meter
CAN I/F
I/F I/F

CANL CANH SI +S ET
E19

31 32 38 39 33

W
BR
V

G
17 3A

77 3A

4
V V
AE6
BR
V

E1

-4-
Cooling Fan <2GR-FE>

A9
Black

1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16 17 18 19
20 21 22 23 24 25 26 27 28 29 30

31 32 33 34 35 36 37 38 39 40 41
42 43 44 45 46 47 48 49
50 51 52 53 54 55 56 57 58 59 60

A 19 A 21
Black Black

1 2 3

3 4 5 6 7 8 9 10 11 12 13 14 15 16
1 2
17 18 19 20 21 22 23 24 25 26 27 28 29 30

31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46

A 30 A 31 A 32 A 36
Black Black Black Gray

1 2 3 4 5 6 7 8 9 10 11
1 2 3 1 2 3
1 2 3 12 13 14 15 16 17 18 19 20 21 22

A 37 A 39 A 40 B4
Gray Black Gray Black

1 2 3 4 5 1 2 3 4 5
1 2
6 7 8 9 10 11 12 6 7 8 9 10 11 12
1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22 (2GR-FE)

-5-
Cooling Fan <2GR-FE>

B 30
Black

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 41 42 43 44 45 46

64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86
87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103
110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 104 105 106 107 108 109

(2GR-FE)

B 46 E 19
Black White

1 2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

E 36 E 37
White White

1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
15 16 17 18 19 20 21 22 23 24 25 26 27 28 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

E 68 E 69 E 70
Gray Black Gray

1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22 12 13 14 15 16 17 18 19 20 21 22 12 13 14 15 16 17 18 19 20 21 22

3A 3B
White White

1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12

13 14 15 16 17 18 19 20 21 22 23 24 13 14 15 16 17 18 19 20 21 22 23 24

25 26 27 28 29 30 31 32 33 34 35 36 25 26 27 28 29 30 31 32 33 34 35 36

37 38 39 40 41 42 43 44 45 46 47 48 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 49 50 51 52 53 54 55 56 57 58 59 60

61 62 63 64 65 66 67 68 69 70 71 72 61 62 63 64 65 66 67 68 69 70 71 72

73 74 75 76 77 78 79 80 81 82 83 84

-6-
Cooling Fan <2GR-FE>

IB IH IM
White White White

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 2 8 9
3 4 5 6 7 1 2 3 4 5 6
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 10 11 12 13 14 15 16 17 18 7 8 9 10 11 12

AE4 AE6
Gray White

9 8 7 6 5 4 3 2 1 1 2 3 4 5 5 4 3 2 1
1 2 3 4 5 6 7 8 9 10 9 8 7 6
25 16 15 14 13 12 11 10 17 6 7 8 9 10
17 10 11 12 13 14 15 16 25 24 23 22 21 20 19 18
18 19 20 21 22 23 24

AE7
White

1 2 3 4 5 5 4 3 2 1

6 7 8 9 10 10 9 8 7 6

-7-

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