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Home >> Lexus >> 2023 >> LX 600 Luxury >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (W/ Canister Pump Module) - Diagnostic Codes (5 Of 9) >> SFI SYSTEM (w/ Canister Pump Module) >> DTC P0480-12: Fan 1 Control Circuit High Circuit Short to Battery [12/2021 - ] >> Description
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DTC P0480-12: Fan 1 Control Circuit High Circuit Short to Battery [12/2021 - ]: Description

The electronic control coupling fan can change the oil level as required to control the fan speed to the target value by changing the oil supply valve of the coupling fan from the conventional bimetal type to an electronic control solenoid type.

The electric control coupling fan reduces fan noise and improves fuel economy by reducing the fan speed when not needed.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL DTC Output from Priority Note
P0480-12 Fan 1 Control Circuit High Circuit Short to Battery Short circuit in fan control solenoid circuit and power supply circuit (1 trip detection logic).
  • Short in fan control solenoid circuit
  • Fan control solenoid (fluid coupling assembly)
  • ECM
- Engine A SAE: P0692