The ECM monitors battery voltage while the engine is running. The ECM looks at voltage fed to the ECM from the Main Relay.
During engine running, if system voltage is below 11V or the battery power input line has a problem, ECM sets P0562.
Item | Detecting Condition | Possible cause | |
DTC Strategy |
•
Voltage too low |
•
Poor connection
•
Open or short in circuit
•
Faulty charging system
•
Faulty main relay
•
Faulty ECM | |
Enable Conditions | Case1 |
•
Engine works | |
Case2 |
•
- | ||
Threshold value | Case1 |
•
System voltage < 11V | |
Case2 |
•
Open or short to ground in memory power line | ||
Diagnosis Time | Case1 |
•
Continuous | |
Case2 |
•
Continuous (More than 5 sec.failure for every 10 sec.test) | ||
MIL On Condition |
•
3 driving cycle | ||
Coil Resistance | 70Ω ~ 120Ω |
