Can Communication Control
WARNING: This page is about a different variant/trim than selected.
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
FAIL SAFE CHART
| Control part |
Fail-safe in operation |
| Cooling fan |
- Signals cooling fans ON when the ignition switch is turned ON
- Signals cooling fans OFF when the ignition switch is turned OFF
|
| Heater pump |
Heater pump relay OFF |
If No CAN Communication Is Available With BCM
FAIL SAFE CHART
| Control part |
Fail-safe in operation |
| Headlamp |
- Turns ON the headlamp low relay when the ignition switch is turned ON
- Turns OFF the headlamp low relay when the ignition switch is turned OFF
- Headlamp high relay OFF
|
- Parking lamps
- Side marker lamps
- License plate lamps
- Illuminations
- Tail lamps
|
- Turns ON the tail lamp relay when the ignition switch is turned ON
- Turns OFF the tail lamp relay when the ignition switch is turned OFF
|
| Front wiper |
- 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.
|
| Horn |
Horn OFF |
| Ignition relay |
The status just before activation of fail-safe is maintained. |