P0560

Schematic:

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 RUNNING THE DTC
The engine is running.

CONDITIONS FOR SETTING THE DTC
^ The system voltage monitored at the PCM ignition feed circuit is less than 9 volts or more than 16 volts.
^ The above conditions are present for more than 25 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 Failure 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 malfunction.
^ The DTC can be cleared by using a scan tool.

DIAGNOSTIC AIDS

IMPORTANT: Charging the battery with a battery charger while starting the engine may cause DTC P0560 to be set.

Check for the following conditions:

IMPORTANT: Ensure the PCM engine grounds are secure and clean.

^ A faulty connection at the PCM or the generator- Inspect the harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, and faulty terminal to wire connections. Use a corresponding mating terminal to test for proper terminal tension.
^ 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 the connectors and wiring related to the PCM, the dash harness, and the engine harness. A change in the display will indicate the location of the malfunction.

If DTC P0560 cannot be duplicated, reviewing the Failure 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.


TEST DESCRIPTION

Steps 1 - 8:

Steps 9 - 14:

The numbers below refer the step numbers on the diagnostic table.
13. This vehicle is equipped with a PCM which utilizes an electrically Erasable Programmable Read-only Memory (EEPROM). When the PCM is replaced, the new PCM must be programmed. Refer to PCM Replacement/Programming.