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Home >> Infiniti >> 2008 >> G37 Base >> Repair and Diagnosis >> Electrical >> Body Electrical >> Power Control System >> IPDM E/R >> Function Diagnosis >> 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.
SYSTEM DESCRIPTION

Control relay Input/output Transmit unit Control part
  • Headlamp low relay
  • Headlamp high relay
  • Low beam request signal
  • High beam request signal
BCM (CAN)
  • Headlamp low
  • Headlamp high
Front fog lamp relay Front fog light request signal BCM (CAN) Front fog lamp
Tail lamp relay Position light request signal BCM (CAN)
  • Parking lamp
  • Side marker lamp
  • License plate lamp
  • Tail lamp
  • Illuminations
  • Front wiper relay
  • Front wiper high relay
Front wiper request signal BCM (CAN) Front wiper
Front wiper auto stop signal Front wiper motor
  • Horn relay 1
  • Horn relay 2
  • Theft warning horn request signal
  • Horn reminder signal
BCM (CAN)
  • Horn (low)
  • Horn (high)
  • Starter relay(1)
  • Starter control relay
Starter control relay signal BCM (CAN) Starter motor
Steering lock unit condition signal Steering lock unit
Starter relay control signal TCM
Clutch interlock switch
Steering lock relay Steering lock relay signal BCM (CAN) Steering lock unit
Steering lock unit condition signal Steering lock unit
A/T device (Detention switch) signal A/T device (Detention switch)
A/C relay A/C compressor request signal ECM (CAN) A/C compressor (magnet clutch)
Ignition relay Ignition switch ON signal BCM (CAN) Ignition relay
Vehicle speed signal Unified meter and A/C amp. (CAN)
Push-button ignition switch signal Push-button ignition switch
(1) BCM controls the starter relay.