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Home >> Nissan-Datsun >> 2021 >> Altima S >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Power Control System >> System Description >> System >> Relay Control System >> System Description >> Description
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System Description: Description

The IPDM E/R (Intelligent Power Distribution Module Engine Room) activates the internal control circuits to perform the relay ON-OFF control according to the input signals from various sensors and the request signals received from control units via CAN communication.

CAUTION: The IPDM E/R integrated relays cannot be removed.

Control relay

Input/output

Transmit unit

Control part

Reference

  • Front wiper relay
  • Front wiper high relay

Front wiper request signal

BCM (CAN)

Front wiper motor

Refer to System Description .

Front wiper stop position signal

Front wiper motor

Cooling fan relay-1

Cooling fan request signal

ECM (CAN)

  • Cooling fan motors
  • Cooling fan relays

Refer to System Description .

Starter relay

Starter relay signal

BCM (CAN)

Starter motor

Refer to System Description .

Starter relay control signal

Transmission range switch

Ignition relay-1

Ignition switch ON signal

BCM (CAN)

Each control unit, sensor, actuator and relay (Ignition power supply)

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Vehicle speed signal (Meter)

Combination meter (CAN)

Ignition switch signal

Push-button ignition switch