Function of Detecting Ignition Relay Malfunction
- When the integrated ignition relay is stuck in a "closed contact" position and cannot be turned OFF, IPDM E/R turns ON tail and parking lamps for 10 minutes to indicate IPDM E/R malfunction.
- When the state of the integrated ignition relay does not agree with the state of the ignition switch signal received via CAN communication, the IPDM E/R activates the tail lamp relay.
FAIL-SAFE MODE CHART
| 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 lamps are OFF.