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 judgement |
IPDM E/R judgement |
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: IGN RELAY ON CIRC] |
|
OFF |
ON |
Ignition relay OFF stuck |
Detects DTC [B20DF: IGN RELAY OFF CIRC] |