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Ipdm E/r: Overview Infiniti FX50 II

Body Electrical 6 illustrations ~776 words

Scheme 130

Scheme 130: System Diagram
Scheme 130: System Diagram

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.

CAUTIONIPDM E/R integrated relays cannot be removed.
Control relayInput/outputTransmit unitControl partReference
Headlamp low relay Headlamp high relayLow beam request signal High beam request signalBCM (CAN)Headlamp low Headlamp highHEADLAMP SYSTEM
Front fog lamp relayFront fog light request signalBCM (CAN)Front fog lampFRONT FOG LAMP SYSTEM
Tail lamp relayPosition light request signalBCM (CAN)Parking lamp Side marker lamp License plate lamp Tail lampPARKING, LICENSE PLATE AND TAIL LAMPS SYSTEM
IlluminationsILLUMINATION CONTROL SYSTEM
Front wiper relay Front wiper high relayFront wiper request signalBCM (CAN)Front wiperWITH RAIN SENSOR (With rain sensor) WITHOUT RAIN SENSOR (Without rain sensor)
Front wiper stop position signalFront wiper motor
Horn relay 1 Horn relay 2Theft warning horn request signal Horn reminder signalBCM (CAN)Horn (low) Horn (high)VEHICLE SECURITY SYSTEM
Starter relay (1) Starter control relayStarter control relay signalBCM (CAN)Starter motorDESCRIPTION , DESCRIPTION
Steering lock unit condition signalSteering lock unit
Starter relay control signalTCM
Steering lock relaySteering lock relay signalBCM (CAN)Steering lock unitB2108 STEERING LOCK RELAY
Steering lock unit condition signalSteering lock unit
Control device (Detention switch) signalControl device (Detention switch)
A/C relayA/C compressor request signalECM (CAN)A/C compressor (magnet clutch)MAGNET CLUTCH CONTROL SYSTEM
Ignition relayIgnition switch ON signalBCM (CAN)Ignition relayB2098 IGNITION RELAY ON STUCK
Vehicle speed signalUnified meter and A/C amp. (CAN)
Push-button ignition switch signalPush-button ignition switch
(1) BCM controls the starter relay.
(1)BCM controls the starter relay.

INPUT/OUTPUT REFERENCE TABLE

Scheme 131

Scheme 131: Component Parts Location
Scheme 131: Component Parts Location

Scheme 132

Scheme 132: System Diagram
Scheme 132: System Diagram
  1. IPDM E/R reads the status of the oil pressure switch and transmits the oil pressure switch signal to BCM via CAN communication. Refer to «WARNING CHIME SYSTEM: SYSTEM DIAGRAM»(ref-368920-S06253214482010081300000) .
  2. IPDM E/R reads the status of the hood switch and transmits the hood switch signal to BCM via CAN communication. Refer to «DESCRIPTION»(ref-368904-S23788938582010081300000) .
  3. IPDM E/R receives the rear window defogger control signal from BCM via CAN communication and transmits it to ECM and AV control unit via CAN communication. Refer to «SYSTEM DIAGRAM»(ref-368910-S39774504782010081300000) .

Scheme 133

Scheme 133: Component Parts Location
Scheme 133: Component Parts Location

Scheme 134

Scheme 134: System Diagram
Scheme 134: System Diagram

WAKE-UP OPERATION

  1. IPDM E/R changes from the low power consumption mode to the normal mode when it receives a sleep wake-up signal (wake up) from BCM or any of the following conditions is fulfilled. In addition, it transmits a sleep-ready signal (not-ready) to BCM via CAN communication to report the CAN communication start. Ignition switch ON The hood switch status changes. An output request is received from a control unit via CAN communication.

Scheme 135

Scheme 135: Component Parts Location
Scheme 135: Component Parts Location

Description

In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation.

  1. Oil pressure warning lamp
  2. Front wiper (LO, HI)
  3. Parking lamps
  4. License plate lamps
  5. Side marker lamps
  6. Tail lamps
  7. Front fog lamps
  8. Headlamps (LO, HI)
  9. A/C compressor (magnet clutch)
  10. Cooling fan (cooling fan control module)

Operation Procedure

  1. Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper operation) NOTE: When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
  2. Turn the ignition switch OFF.
  3. Turn the ignition switch ON, and within 20 seconds, press the driver door switch 10 times. Then turn the ignition switch OFF. CAUTION: Close passenger door.
  4. Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test starts.
  5. The oil pressure warning lamp starts blinking when the auto active test starts.
  6. After a series of the following operations is repeated 3 times, auto active test is completed. NOTE: When auto active test mode has to be cancelled halfway through test, turn ignition switch OFF. CAUTION: If auto active test mode cannot be actuated, check door switch system. Refer to «COMPONENT FUNCTION CHECK»(ref-368903-S33269099042010081300000) . Do not start the engine.

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern vehicle is equipped with many electronic control unit, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Table. Refer to CAN COMMUNICATION SIGNAL TABLE .

  1. IPDM E/R operates the ignition relay when it receives an ignition switch ON signal from BCM via CAN communication.
  2. Turn the ignition relay OFF by pressing the push-button ignition switch once when the vehicle speed is 4 km/h (2.5 MPH) or less.
  3. Turn the ignition relay OFF with the following operation when the vehicle speed is more than 4 km/h (2.5 MPH) or when an abnormal condition occurs in CAN communication from the unified meter and A/C amp.(Emergency OFF) Press and hold the push-button ignition switch for 2 seconds or more. Press the push-button ignition switch 3 times within 1.5 seconds. NOTE: The ignition relay does not turn ON for 3 seconds after emergency OFF even if the push-button ignition switch is pressed.
  1. IPDM E/R operates the ignition relay when it receives an ignition switch ON signal from BCM via CAN communication.
  2. Turn the ignition relay OFF by pressing the push-button ignition switch once when the vehicle speed is 4 km/h (2.5 MPH) or less.
  3. Turn the ignition relay OFF with the following operation when the vehicle speed is more than 4 km/h (2.5 MPH) or when an abnormal condition occurs in CAN communication from the unified meter and A/C amp.(Emergency OFF) Press and hold the push-button ignition switch for 2 seconds or more. Press the push-button ignition switch 3 times within 1.5 seconds. NOTE: The ignition relay does not turn ON for 3 seconds after emergency OFF even if the push-button ignition switch is pressed.

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