Function of Detecting Ignition Relay Malfunction
- When contact point of integrated ignition relay is stuck and cannot be turned OFF, IPDM E/R turns ON tail and parking lamps for 10 minutes to indicate IPDM E/R malfunction.
- When a state of ignition relay having built-in does not agree with a state of Ignition switch signal input by a CAN communication from BCM, IPDM E/R lets tail lamp relay operate.
IGNITION SWITCH SIGNAL REFERENCE
| Ignition switch signal | Ignition relay status | Tail lamp relay |
|---|---|---|
| ON | ON | - |
| OFF | OFF | - |
| ON | OFF | - |
| OFF | ON | ON (10 minutes) |
NOTE:
When the ignition switch is turned ON, the tail lamp is OFF.