WHAT IT MEANS YOUR FAN CONTROL RELAY CONTROL CIRCUIT IS OPEN OR SHORTED TO GROUND. FAN CONTROL RELAY CONTROL CIRCUIT IS SHORTED TO SYSTEM POWER. THE FAN CONTROL RELAY POWER CIRCUIT IS OPEN CHECK COOL FAN 1 FUSE. FAN CONTROL RELAY IS DAMAGED OR HAS FAILED. PCM HAS FAILED.I LISTED ALL POSSIBLE CAUSES TO CODE PO480.
DTC P0480 Cooling Fan Relay 1 Control Circuit
Try replacing the fan relay.
If the engine runs, the ECM isn't the problem. The entire electronic fuel injection system is controlled by the engine control module (ECM) so either the ECM works or not, its that simple.
The CPS is the heart of the entire EFI system. No cps = dead EFI system.
There's more to a/c than just a few cans of refrigerant.
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