DTC P0560
DTC P0560: Powertrain Control Module (PCM) Power Source Circuit Unexpected Voltage
General Description
The powertrain control module (PCM) constantly draws power from +B_BACKUP_FI-ECU to maintain the back-up ram. If the +B_BACKUP_FI-ECU terminal voltage is a set value for a specified time, the PCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 5 seconds or more |
| DTC Type | One drive cycle, MIL on |
Enable Conditions
| Condition | |
|---|---|
| Vehicle | ON mode |
Malfunction Threshold
The +B BACKUP FI-ECU terminal voltage is 6.0 V or less for at least 5 seconds.
Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
- PCM +B_BACKUP_FI-ECU line failure
- PCM internal circuit failure
Diagnosis Details
Conditions for setting the DTC
.When a malfunction is detected, the MIL comes on and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory.
Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the 12 volt battery.