P0480 on Mitsubishi
Cooling Fan 1 Control Circuit
P0480 on Mitsubishi vehicles indicates cooling fan 1 control circuit. Au7o has documented this code across 1 Mitsubishi model — most commonly on Outlander. P0480 indicates a fault in the engine control module's circuit that operates cooling fan 1 (or the fan relay it drives). The computer detected an open, short, or out-of-range condition in the fan control output. Because the cooling fan helps prevent the engine from overheating — especially at idle, low speeds, or with the A/C on — a fan that won't run can lead to high coolant temperatures. It is worth addressing fairly promptly to avoid overheating, particularly in hot weather or stop-and-go traffic.
Common Causes of P0480
- •Faulty cooling fan relay
- •Failed cooling fan motor
- •Wiring damage, shorts, or corroded connectors in the fan circuit
- •Blown fuse or fusible link for the fan
- •Poor ground for the fan motor or relay
- •Faulty fan control module (where used)
- •PCM driver circuit fault (less common)
P0480 on Mitsubishi by Model
Mitsubishi Outlander(1 issue)
- Defective Engine Control / Power Supply Relay Causes Stall, Power Loss or Overheating (Recall 17V609 / SR-17-005)2015-2017
A relay supplier used an improper maintenance procedure on its welding machine, so internal welds inside several relays used in the Outlander's engine-bay relay box were made incorrectly and can lose proper electrical conduction. Depending on which relay is affected, the result differs: failure of the engine control unit relay kills the engine while driving and the vehicle cannot be restarted; failure of the relay feeding the MIVEC variable valve lift assembly triggers a check engine light and reduced power; failure of the radiator fan relay stops the cooling fan and lets the engine overheat. Because it is a manufacturing defect in a specific production batch rather than a wear item, failures show up suddenly and at low mileage.
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View P0480 across all makes →Frequently Asked Questions
What does P0480 mean on Mitsubishi?▼
P0480 stands for "Cooling Fan 1 Control Circuit." P0480 indicates a fault in the engine control module's circuit that operates cooling fan 1 (or the fan relay it drives). The computer detected an open, short, or out-of-range condition in the fan control output. Because the cooling fan helps prevent the engine from overheating — especially at idle, low speeds, or with the A/C on — a fan that won't run can lead to high coolant temperatures. It is worth addressing fairly promptly to avoid overheating, particularly in hot weather or stop-and-go traffic. On Mitsubishi specifically, this code is documented across 1 model.
What causes P0480 on Mitsubishi vehicles?▼
Common causes on Mitsubishi: Faulty cooling fan relay, Failed cooling fan motor, Wiring damage, shorts, or corroded connectors in the fan circuit, Blown fuse or fusible link for the fan, Poor ground for the fan motor or relay. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0480 on a Mitsubishi?▼
Repair costs vary widely depending on the root cause and specific Mitsubishi model.
Which Mitsubishi models have P0480 documented?▼
Au7o has documented P0480 on 1 Mitsubishi model: Outlander.