Ignition Relay Malfunction Detection Function
- IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it.
- IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation coil circuit.
- If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay and the daytime running light relay* for 10 minutes to alert the user to the ignition relay malfunction when the ignition switch is turned OFF.IPDM E/R JUDGMENT REFERENCE
Voltage judgment IPDM E/R judgment Operation Ignition relay contact side Ignition relay excitation coil side ON ON Ignition relay ON normal - OFF OFF Ignition relay OFF normal - ON OFF Ignition relay ON stuck - Detects DTC "B2098: IGN RELAY ON"
- Turns ON the tail lamp relay and the daytime running light relay(1) for 10 minutes
OFF ON Ignition relay OFF stuck Detects DTC "B2099: IGN RELAY OFF" (1) With daytime running light system