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] |
FRONT WIPER CONTROL
IPDM E/R detects front wiper stop position by front wiper stop position signal.
When front wiper stop position signal is in the condition listed below while the front wiper is operating, IPDM E/R activates the fail-safe.
| Electric motor switch | Front wiper switch | Front wiper stop position signal | Fail-safe |
|---|---|---|---|
| ON | OFF | The signal does not change from the battery voltage for 10 seconds. | Stops front wiper power supply for 20 seconds |
| Except OFF | The signal does not change for 10 seconds. |