Relay Control System: 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 |
|---|---|---|---|
| Front fog lamp relay (if equipped) | Front fog lamp request signal | BCM (CAN) | Front fog lamps (if equipped) |
| Headlamp (LH) high relay Headlamp (RH) high relay Headlamp low relay | High beam request signal Low beam request signal | BCM (CAN) | Headlamp high Headlamp low |
| Tail lamp relay | Position light request signal | BCM (CAN) | Parking lamps License plate lamps Tail lamps Trailer tow relay (if equipped) Illumination system |
| Front wiper relay Front wiper high relay | Front wiper request signal | BCM (CAN) | Front wiper motor |
| Rear window defogger relay | Rear window defogger request signal | BCM (CAN) | Rear window defogger |
| A/C relay | A/C request signal | BCM (CAN) ECM (CAN) | A/C compressor |
| Starter relay | Ignition switch START signal | TCM | Starter motor |
| Cooling fan relays | Cooling fan request signal | ECM (CAN) | Cooling fan relay |
| Heated mirror relay | Heated mirror request signal | BCM (CAN) | Door mirrors |
| ECM relay | ECM relay control signal | ECM (CAN) | ECM relay |
| Throttle control motor relay | Throttle control motor control signal | ECM (CAN) | Throttle control motor relay |
| Fuel pump relay | Fuel pump request signal | ECM (CAN) | Fuel pump |
| Ignition relay | Ignition switch ON signal | Ignition switch | Ignition relay |
RELAY CONTROL SYSTEM REFERENCE
SYSTEM DESCRIPTION
- PDS (POWER DISTRIBUTION SYSTEM) is the system that BCM controls with the operation of the ignition switch and performs the power distribution to each power circuit.
- The ignition switch operation is input to BCM as a signal. BCM changes the power supply position according to the status and operates the ignition relay (inside IPDM E/R) to supply power to each power circuit.
Power Distribution System: Component Description
| BCM | Reference |
|---|---|
| IPDM E/R | Relay Control System: System Description |
| Ignition relay (in IPDM E/R) | Relay Control System: System Description |
| Park/neutral position switch | Relay Control System: System Description |
BCM REFERENCE
Signal Buffer System: System Description
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 [ CAN COMMUNICATION SYSTEM: SYSTEM DESCRIPTION ]
WAKE-UP OPERATION
- 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 An output request is received from a control unit via CAN communication.
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Diagnosis System (IPDM E/R): Diagnosis Description
Refer to [ DIAGNOSIS SYSTEM (IPDM E/R): DIAGNOSIS DESCRIPTION ].
Description
Refer to [ CAN COMMUNICATION SYSTEM: SYSTEM DESCRIPTION ]