DTC PZ1552, Loss Of PZM Keep Alive Memory (KAM)

DTC PZ1552 indicates keep alive memory or long term memory has been reset. Keep alive memory or long term memory will reset when power or ground is removed from PZM. This is a normal occurrence when battery is disconnected and reconnected. When DTC PZ1552 is set, PZM memory is reset to initial values. PZM will initialize keep alive memory contents to default the following:

• Fuel Level - Empty
• Afterblow Mode - Disable
• Afterblow Alarm - Disable
• Controlled Power Timer - Set To Full Time
• Low Power State - Set To Unknown
• Power Down Hours - Clear
• Shutdown - No Controlled Power Shutdown
• Storage Mode State - Disable
• Key Cylinder State - Inactive
• Class 2 Bus State - Unknown
• Driver Door Jamb - Closed
• Other Doors Jamb - Closed
• Ignition State - Current State

If DTC PZ1552 is set and battery was not disconnected, check for poor connections at PZM connector power and ground terminals.