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 |
| Tail lamp relay | Position light request signal | BCM (CAN) | Parking lamp License plate lamp Tail lamp | PARKING, LICENSE PLATE AND TAIL LAMP SYSTEM: SYSTEM DESCRIPTION |
| Illuminations | ILLUMINATION CONTROL SYSTEM | |||
| Front wiper relay Front wiper high relay | Front wiper request signal | BCM (CAN) | Front wiper motor | SYSTEM |
| Front wiper stop position signal | Front wiper motor | |||
| Starter control relay | Starter control relay signal | BCM (CAN) | Starter motor | STARTING SYSTEM (WITH INTELLIGENT KEY): SYSTEM DIAGRAM |
| Transmission range switch signal (CVT models) | Transmission range switch | |||
| Clutch interlock switch signal (M/T models) | Clutch interlock switch | |||
| Cooling fan relay-1 Cooling fan relay-2 | Cooling fan speed request signal | ECM (CAN) | Cooling fan | CAN COMMUNICATION |
| A/C relay | A/C compressor request signal | ECM (CAN) | A/C compressor (Magnet clutch) | SYSTEM |
| Ignition relay | Ignition switch ON signal | BCM (CAN) | Each control unit, sensor, actuator and relay (Ignition power supply) | FUEL INJECTION TIMING |
| Vehicle speed signal (Meter) | Combination meter (CAN) | |||
| Push-button ignition switch signal | Push-button ignition switch |
Outline
- IPDM E/R incorporates a power consumption control function that reduces the power consumption according to the vehicle status.
- IPDM E/R changes its status (control mode) with the sleep wake up signal received from BCM via CAN communication.
Normal mode (wake-up)
- CAN communication is normally performed with other control units.
- Individual unit control by IPDM E/R is normally performed.
Low power consumption mode (sleep)
- Low power consumption control is active.
- CAN transmission is stopped.
Sleep Mode Activation
- IPDM E/R judges that the sleep-ready conditions are fulfilled when the ignition switch is OFF and none of the conditions below are present. Then it transmits a sleep-ready signal (ready) to BCM via CAN communication. Outputting signals to actuators Switches or relays operating Output requests are being received from control units via CAN communication.
- IPDM E/R stops CAN communication and enters the low power consumption mode when it receives a sleep wake up signal (sleep) from BCM and the sleep-ready conditions are fulfilled.
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.
In auto active test, the IPDM E/R sends a drive signal to the following systems to check their operation.
- Front wiper (LO, HI)
- Parking lamp
- License plate lamp
- Tail lamp
- Front fog lamp
- Headlamp (LO, HI)
- A/C compressor (magnet clutch)
- Cooling fan
Operation Procedure
Note. Never perform auto active test in the following conditions. Passenger door is open CONSULT is connected
- 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.
- Turn the ignition switch OFF.
- Turn the ignition switch ON, and within 20 seconds, press the driver door switch 10 times. Then turn the ignition switch OFF.
- Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test starts.
- After a series of the following operations is repeated 3 times, auto active test is completed.
Note. When auto active test has to be cancelled halfway through test, turn the ignition switch OFF. When auto active test is not activated, door switch may be the cause. Check door switch. Refer to " COMPONENT FUNCTION CHECK ".
ECU IDENTIFICATION
The IPDM E/R part number is displayed.
Refer to " CAN COMMUNICATION SYSTEM: SYSTEM DESCRIPTION ".