DTC B1552, Loss Of PZM Keep Alive Memory (KAM)

DTC B1552 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 B1552 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
Power Down Hours - Clear
Storage Mode State - Disable
Key Cylinder State - Inactive
Driver Door Jamb - Closed
Other Doors Jamb - Closed
Ignition State - Current State

If DTC B1552 is set and battery was not disconnected, check for poor connections at PZM 24-pin connector C1 terminals B3 (Orange wire) and A12 (Black wire).