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Home >> Nissan-Datsun >> 2020 >> Altima SV, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (Pr25DD) (1 Of 2) >> System Description >> System >> Cooling Fan Control >> System Description >> Cooling Fan Relay Operation

Cooling Fan Relay Operation

The ECM controls cooling fan relays in IPDM E/R through CAN communication line.

Cooling fan speed

Cooling fan relay

1

2

3

Stop (OFF)

OFF

OFF

OFF

Low (LOW)

ON

OFF

OFF

Middle (MID)

OFF

ON

OFF

High (HI)

OFF

ON

ON
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