Can Communication Control

When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN communication recovers normally, it also returns to normal control.

If no CAN Communication Is Available With ECM

Control part	Fail-safe operation
Cooling fan	The cooling fan turn ON when the ignition switch is turned ON (Cooling fan HI operation). The cooling fan turn OFF when the ignition switch is turned OFF.
A/C compressor	A/C relay OFF

If no CAN Communication Is Available With BCM

Control part	Fail-safe operation
Front wiper motor	The status just before activation of fail-safe control is maintained until the ignition switch is turned OFF while the front wiper is operating at LO or HI speed. The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-safe control is activated while the front wiper is set in the INT mode and the front wiper motor is operating. Returns automatically wiper to stop position when ignition switch is turned ON if fail-safe control is activated while front wiper motor is operated and wiper stop in the other position than stop position.
Horn	Horn OFF
Ignition relay-1	The status just before activation of fail-safe is maintained.
Starter motor	Starter relay OFF