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
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Control part
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Fail-safe operation
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Cooling fan
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- The cooling fan relay turn ON when the ignition switch is turned ON (Cooling fan HI operation)
- The cooling fan relay turn OFF when the ignition switch is turned OFF
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A/C compressor
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A/C relay OFF
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If No CAN Communication Is Available With BCM
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Control part
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Fail-safe operation
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Headlamp
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- 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
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- Parking lamp
- Side marker lamp
- License plate lamp
- Illumination
- Tail lamp
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- 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
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Front wiper motor
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- 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.
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Horn
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Horn OFF
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