Engine Code

DTC P0560 System Voltage (1 Of 3):

DTC P0560 System Voltage (2 Of 3):

DTC P0560 System Voltage (3 Of 3):

PCM Controlled Generator:

Circuit Description

The PCM monitors system voltage on the PCM ignition feed circuit. If the system voltage is out of tolerance, DTC P0560 will be set. When the conditions that set DTC P0560 are present, operation of some vehicle systems and components may be affected.


Conditions for Setting the DTC

^ The engine is running.

^ System voltage monitored at the PCM ignition feed circuit is below 10 volts or above 16 volts.

^ Above conditions for longer than 2 seconds.


Action Taken When the DTC Sets

^ The PCM will not illuminate the Malfunction Indicator Lamp (MIL).

^ The PCM will store conditions which were present when the DTC set as Fail Records data only. This information will not be stored as Freeze Frame data.

Conditions for Clearing the MIL/DTC

^ A history DTC will clear after 40 consecutive warm-up cycles have occurred without a fault.

^ DTC can be cleared by using the scan tool Clear Info function or by disconnecting the PCM battery feed.


Diagnostic Aids

Check for the following conditions:

^ Poor connection or damaged harness. Inspect the wiring harness for damage. If the harness appears to be OK, observe the Ignition 1 voltage display on the scan tool while moving connectors and wiring related to the PCM, dash harness, and engine harness. A change in the display will indicate the location of the fault.

If DTC P0506 cannot be duplicated, reviewing the Fail Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to be set occurs. This may assist in diagnosing the condition.

For complete information and additional diagnostics for the vehicle charging system, refer to Charging System. Starting and Charging