The system voltage has to be high enough to guarantee in order to perform diagnosis functions. The ECM monitors battery voltage.
The ECM sets DTC P0562 if the ECM detects system voltage lower than the possible range of battery voltage.
Item
Detecting Condition
Possible cause
Monitoring Strategy
? 1. Signal check Low
? 2. Signal interruption
? 3. Rationality check
? Open in power line
? Short in power line
? Faulty ECM
Threshold value
1
? Battery voltage : < 10V , > 2.5V
2
3
? Battery voltage : < 2.5V
Enable Conditions
? Time elapse after start : 120s
Diagnostic Time
MIL on condition
? > 0 . 2 sec
Engine stop : 11 ~ 13V
Idle : 12 ~ 15V