Scheme 75
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 | Front fog lamp request signal | BCM (CAN) | Front fog lamps |
| Headlamp LH high relay Headlamp RH high relay Headlamp low relay | High beam request signal LH High beam request signal RH Low beam request signal | BCM (CAN) | Headlamp high LH Headlamp high RH Headlamp low |
| Tail lamp relay | Position light request signal | BCM (CAN) | Parking lamps License plate lamps Tail lamps Trailer tow relay 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 relay | 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 |
INPUT/OUTPUT SIGNAL REFERENCE
Scheme 76
Scheme 77
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 " SYSTEM DESCRIPTION ".
Scheme 78
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.
Scheme 79
Description
Refer to " SYSTEM DESCRIPTION ".
OPERATION PROCEDURE
- Connect both battery cables. NOTE: Supply power using jumper cables if battery is discharged.
- Use the Intelligent Key or mechanical key to turn the ignition switch to the "ACC" position. At this time, the steering lock will be released.
- Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
- Perform the necessary repair operation.
- When the repair work is completed, return the ignition switch to the "LOCK" position before connecting the battery cables. (At this time, the steering lock mechanism will engage.)
- Perform a self-diagnosis check of all control units using CONSULT-III.
Scheme 80
Scheme 81
- Disconnect negative battery cable.
- Remove IPDM E/R upper cover.
- Release 2 clips and pull IPDM E/R up from case.
- Disconnect IPDM E/R connectors and remove the IPDM E/R.