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Home >> Lexus >> 2023 >> LX 600 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (W/O Canister Pump Module) - Diagnostic Codes (4 Of 5) >> SFI SYSTEM (w/o Canister Pump Module) >> DTC P0526-31: Fan Speed Sensor Circuit No Signal No Signal [12/2021 - ] >> Description

DTC P0526-31: Fan Speed Sensor Circuit No Signal No Signal [12/2021 - ]: Description

The fan speed sensor is provided inside the fluid coupling assembly and outputs 6 signals per fan rotation.

The ECM detects the fan speed from the pulse width of fan speed sensor signals.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL DTC Output from Priority Note
P0526-31 Fan Speed Sensor Circuit No Signal No Signal When the engine is running (at 600 rpm or higher) and the fan control solenoid drive duty ratio is 10% or more, the fan speed sensor signal is not input for 10 seconds or more
(1 trip detection logic)
  • Fan speed sensor (fluid coupling assembly)
  • Wire harness or connector
  • ECM
- Engine A SAE: P0528