1997 Buick Riviera DTC P0560 System Voltage
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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 less than 9 volts or greater than 16 volts. • Above conditions for longer 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 the scan tool Clear Info function.
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 less than 9 volts or greater than 16 volts. • Above conditions for longer 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 the scan tool Clear Info function.
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