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Home >> Infiniti >> 2017 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Power Control System (IPDM E/R) (Introduction & Removal And Installation) >> System Description >> System >> Relay Control System >> System Description
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System Description

IPDM E/R activates the internal control circuit 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:

IPDM E/R integrated relays cannot be removed.

Control relay Input/output Transmit unit Control part Reference
  • Headlamp low relay
  • Headlamp high relay
  • Low beam request signal
  • High beam request signal
BCM (CAN)
  • Headlamp (LO)
  • Headlamp (HI)
SYSTEM DESCRIPTION
Front fog lamp relay Front fog light request signal BCM (CAN) Front fog lamp SYSTEM DESCRIPTION
Tail lamp relay Position light request signal BCM (CAN)
  • Parking lamp
  • License plate lamp
  • Tail lamp
  • Side marker lamp
SYSTEM DESCRIPTION
Illuminations SYSTEM DIAGRAM
  • Front wiper relay
  • Front wiper high relay
Front wiper request signal BCM (CAN) Front wiper motor SYSTEM DIAGRAM
Front wiper stop position signal Front wiper motor
Rear window defogger relay Rear window defogger control signal BCM (CAN) Rear window defogger SYSTEM DIAGRAM
  • Horn relay
  • Theft warning horn relay
  • Theft warning horn request signal
  • Horn reminder signal
BCM (CAN) Horn (high)
Horn (low)
SYSTEM DIAGRAM
  • Starter relayNOTE
  • Starter control relay
Starter control relay signal BCM (CAN) Starter motor STARTER RELAY ,
STARTER CONTROL RELAY
Starter relay control signal TCM
A/C relay A/C compressor request signal ECM (CAN) A/C compressor
(Magnet clutch)
COMPRESSOR CONTROL
Headlamp washer relay Headlamp washer request signal BCM (CAN) Headlamp washer pump SYSTEM DIAGRAM
  • Ignition relay
  • Ignition relay-2
  • Ignition relay-3
Ignition switch ON signal BCM (CAN) Each control unit, sensor, actuator and relay (ignition power supply) DESCRIPTION
Vehicle speed signal Combination meter (CAN)
Push - button ignition switch signal Push - button ignition switch
NOTE:

BCM controls the starter relay.