Can Communication Control
WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.
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 |
- Outputs the pulse duty signal (PWM signal) 100% when the ignition switch is turned ON
- Outputs the pulse duty signal (PWM signal) 0% when the ignition switch is turned OFF
|
| A/C compressor |
A/C relay OFF |
| Alternator |
Outputs the power generation command signal (PWM signal) 0% |
If No CAN Communication Is Available With BCM
| Control part |
Fail-safe 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 lamp
- License plate lamp
- Illumination
- Tail lamp
- Side marker lamp
|
- Turns ON the tail lamp relay and daytime running light relay when the ignition switch is turned ON
- Turns OFF the tail lamp relay and daytime running light relay when the ignition switch is turned OFF
|
| 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 AUTO 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 than stop position.
|
| Front fog lamp |
Front fog lamp relay OFF |
| Horn |
Horn OFF |
| Ignition relay |
The status just before activation of fail-safe is maintained. |
| Starter motor |
Starter control relay OFF |
| Steering lock unit |
Steering lock relay OFF |