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 | To prevent damage to the parts, IPDM E/R integrated relays cannot be removed. |
| Control relay | Input/output | Transmit unit | Control part | Reference |
|---|---|---|---|---|
| Headlamp high relay Headlamp low relay | High beam request signal Low beam request signal | BCM (CAN) | Headlamp high Headlamp low Daytime light relay 2 | SYSTEM |
| Tail lamp relay | Position light request signal | BCM (CAN) | Parking lamp License plate lamp Tail lamp Illumination system | PARKING, LICENSE PLATE AND TAIL LAMP SYSTEM: SYSTEM DESCRIPTION ILLUMINATION CONTROL SYSTEM |
| Front wiper relay Front wiper high relay | Front wiper request signal | BCM (CAN) | Front wiper motor | SYSTEM |
| A/C relay | A/C request signal | BCM (CAN) ECM (CAN) | A/C compressor (Magnet clutch) | SYSTEM |
| Starter relay | Ignition switch START signal | Transmission range switch (with CVT) Clutch interlock switch (with M/T) | Starter motor | SYSTEM |
| Cooling fan low relay Cooling fan high relay | Cooling fan request signal | ECM (CAN) | Cooling fan motor (low) Cooling fan motor (high) | CAN COMMUNICATION |
| ECM relay | ECM relay control signal | ECM (CAN) | ECM | SYSTEM |
| Throttle control motor relay | Throttle control motor control signal | ECM (CAN) | ECM | SYSTEM |
| Fuel pump relay | Fuel pump request signal | ECM (CAN) | Fuel pump | ENGINE CONTROL SYSTEM: SYSTEM DESCRIPTION |
| Ignition relay | Ignition switch ON or START signal | Ignition switch | Ignition switch ON or START power | FUEL INJECTION TIMING |
Scheme 63
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.
Description
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 ".
The ignition relay integrated in IPDM E/R is operated with ignition switch ON signal from the ignition switch.
The ignition relay integrated in IPDM E/R is operated with ignition switch ON signal from the ignition switch.