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DTC P0481 Fan 2 (A/C Condenser Fan) Control Circuit
WIRING DIAGRAM
1
80A
30A
C64
7
6
5
4
3
17
16
15
14
13
12
11
27
26
25
24
23
22
21
34
33
32
31
1. Relay/fuse box
2. Main relay
3. Radiator fan relay
6. A/C condenser fan relay No.2
CIRCUIT DESCRIPTION
A/C condenser fan motor is turned ON and OFF by its relay which ECM controls.
When A/C condenser fan motor starts is running while head light is turned ON and engine is running at below
1500 r/min, A/C condenser fan relay No.2 and radiator fan relay is turned OFF for 2 sec. by ECM.
Other than above condition, A/C condenser fan relay No.2 is leaving turned ON by ECM.
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITION
• Monitor signal of A/C condenser fan relay is different from
command signal.
BLU/WHT
BLK/RED
BLU/WHT
2
BLK/YEL
20A
15A
C63
2
1
7
6
5
4
3
10
9
8
19
18
17
16
15
14
13
12
20
19
18
27
26
25
24
30
29
28
35
34
33
32
4. Radiator fan motor
5. A/C condenser fan relay No.1
ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-141
3
4
BLU/RED
BLK
5
BLU
6
7
BLK
8
BLK/YEL
9
GRN
G91
2
1
6
5
4
3
11
10
9
8
16
15
14
13
12
11
10
23
22
21
20
27
26
25
24
23
22
21
20
31
30
29
28
35
34
33
32
31
7. A/C condenser fan motor
8. A/C compressor relay
9. A/C compressor
• "PNK" or "BLU/WHT" circuit open or short
• A/C condenser fan relay malfunction
• ECM malfunction
10
BRN
G91-4
C64-12
PNK
GRN/YEL
C64-5
PNK/BLK
C64-11
C64-15
BRN/WHT
BLK/RED
G91-5/6
2
1
7
9
8
19
18
17
30
29
28
10. ECM
TROUBLE AREA
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