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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] |