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DTC Troubleshooting
Step
1
Was "Engine and Emission Control System Check"
performed?
2
Check EVAP canister purge valve operation
1) Turn OFF ignition switch, disconnect connector from
EVAP canister purge valve.
2) Check resistance of EVAP canister purge valve referring
to "EVAP Canister Purge Inspection in Section 1B".
Is it as specified?
DTC P0480: Radiator Cooling Fan Control System Malfunction
Wiring Diagram
BATT
80A
C41 (31P)
9
8
7
6
5
4
21
20
19
18
17
16
15
31
30
29
28 27
1. Radiator fan relay No.1
2. Radiator fan relay No.2
DTC Detecting Condition and Possible Cause
DTC detecting condition
Low voltage at terminal "G04-18" when engine coolant temp. is
below 97.5 °C, 207.5 °F.
*2 driving cycle detection logic, continuous monitoring.
DTC Confirmation Procedure
1) Turn ignition switch OFF.
2) Clear DTC with ignition switch ON.
3) Warm up engine until radiator cooling fan starts to operate.
4) Check pending DTC and DTC.
Action
30A
60A
7
BLK
ST
ACC
ON
6
IG
15A
BLK/WHT
BLU/WHT
G04 (24P)
3
2
1
7
6
5
4
3
14
13
12
11
10
16
15
14
13 12
11
26
25
24
23
22
24
23
22
21
20
3. Radiator fan relay No.3
4. Radiator fan motor
Engine General Information and Diagnosis:
Go to Step 2.
"BLU/BLK" circuit open
or short.
"BLK/RED" circuit open
or short.
1
5
BLU/RED
BLU/RED
+
H
BLU/BLK
2
BLU
BLK
3
G03 (17P)
2
1
6
5
4
3
2
1
10
9
8
12
11
10
9
8
7
19
18
17
17
16
15
14
13
5. Main fuse
6. Circuit fuse box
• "BLK/WHT" or "BRN" circuit open or short
• Radiator cooling fan relay malfunction
• ECM malfunction
Yes
Go to "Engine and
Emission Control
System Check".
Replace EVAP canister
purge valve.
ECM
BRN
G04-18
4
+
L
L-
BLK
H-
GRN/RED
G04-3
C41-1
BLK/ORN
BLK
C41-3
7. Ignition switch
Possible cause
1A-90
No
S3RH0A1104054
I3RH0A110023-01
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