Lexus ES: Cooling Fan System
- Precaution
- Parts Location
- System Diagram
- Problem Symptoms Table
- On-vehicle Inspection
- Cooling Fan Circuit
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Precaution
PRECAUTION INITIALIZATION NOTICE: Make sure to perform the necessary procedures (adjustment, calibration, initialization, or registration) after parts related to the cooling fan system have been remov
Parts Location
PARTS LOCATION ILLUSTRATION *1 FAN WITH MOTOR ASSEMBLY - COOLING FAN MOTOR - COOLING FAN ECU *2 ECM *3 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY - EFI-MAIN NO. 1
System Diagram
SYSTEM DIAGRAM
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Hybrid/EV Battery Cooling Fan 1 Circuit Short to Ground (P0A8111,P0A814B)
DESCRIPTION The battery cooling blower assembly speed is controlled by the hybrid vehicle control ECU. Power is supplied to the battery cooling blower assembly when the MREL terminal of the hybrid vehicle control ECU turns on the IGCT relay. The hybrid vehicle control ECU sends command signals (SI0)
Lost Communication with Hybrid/EV Battery Energy Control Module "A" Missing Message (U011187)
DESCRIPTION The hybrid vehicle control ECU transmits and receives signals via CAN communication to and from the battery ECU assembly. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate U011187 Lost Communication with Hybrid/EV Battery Energy Control M
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