Can Communication Control

When CAN communication with BCM is impossible, the 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 BCM

Control part	Fail-safe operation
Headlamp	Turns ON the headlamp low relay when the power switch is pressed ON Turns OFF the headlamp low relay when the power switch is pressed OFF Headlamp high relay OFF (with Halogen headlamps) Headlamp high FET OFF (with LED headlamps)
Parking lamp License plate lamp Illumination Tail lamp Side marker lamp	Turns ON the tail lamp relay when the power switch is pressed ON Turns OFF the tail lamp relay when the power switch is pressed OFF
Front wiper motor	The status just before activation of fail-safe control is maintained until the power switch is pressed OFF while the front wiper is operating at LO or HI speed. The wiper is operated at LO speed until the power switch is pressed 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. Automatically returns the wiper to stop position when power switch is pressed ON if fail-safe control is activated while front wiper motor is operated and wiper stops in the other position rather than stop position. The status is held at service position if the fail-safe control is activated while the service position function is operating.
Front fog lamp	Front fog lamp relay OFF
Rear window defogger	Rear window defogger relay OFF
Horn	Vehicle security horn relay OFF
Ignition relay-1	The status just before activation of fail-safe is maintained.