Ignition Relay Control
- IPDM E/R monitors the voltage at the contact circuit of the ignition relay inside it.
- IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit.
| Voltage judgment | IPDM E/R judgment | Operation | |
|---|---|---|---|
| Ignition relay contact side | Ignition relay control condition | ||
| ON | ON | Ignition relay ON normal | - |
| OFF | OFF | Ignition relay OFF normal | - |
| ON | OFF | Ignition relay ON stuck | Detects DTC [B20DD-73: IGN RELAY ON CIRC] |
| OFF | ON | Ignition relay OFF stuck | Detects DTC [B20DE-72: IGN RELAY OFF CIRC] |