9-173
P0480
4. Defective radiator fan motor relay.
• Replace the radiator fan motor relay.
• Turn the main switch to “ON”, and then check the condition of the DTC using the malfunction mode
of the YDT.
5. Malfunction in ECU.
• Replace the ECU, and complete the service.
Refer to “REPLACING THE ECU (Engine Control Unit)” on page 8-56.
6. Delete the DTC and check that the MIL goes off.
• Confirm that the DTC has a condition of “Recovered” using the YDT, and then delete the DTC.
Is resistance ∞ Ω?
YES
→ Go to step 4.
NO
a. Replace the wire harness.
b. Turn the main switch to “ON”, and then check the condition of the DTC using the malfunction
mode of the YDT.
Is it in the “Recovered” condition?
YES
→ Go to step 6, and complete the service.
NO
→ Go to step 4.
Is it in the “Recovered” condition?
YES
→ Go to step 6, and complete the service.
NO
→ Go to step 5.
R/B
R
G/YR
R/B
R
G/YR
O
Gy/RO/GP/BY/R
B
R/BG/BL/BLg/R
B
G/YR/L
B/WB/WR/LL/WY/BY/RR/G
A B
1
2
1
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