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Trouble shooting P0603 for 98 aurora is this why


Code P0603 means that the PCM's Keep Alive Memory (KAM) self test is failing. This is a routine self test that is performed periodically through out the day. This is critical because the PCM's Keep Alive Memory Modules store all of the PCM's adaptive calculations that need to be 'kept alive' or saved when the vehicle isn't operating. If this part of the PCM's functionality is unreliable, the powertrain's main computer can't be trusted to accurately do its job and may need to be replaced.

Sep 23, 2014 | 1998 Oldsmobile Aurora

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P1633


Ford Taurus model???
this is for ford T 2000
p1633 keep alive memory test failure

Jul 19, 2014 | Ford Taurus Cars & Trucks

1 Answer

Error codes for reader p1633 2005 F250


P1633 definition is Keep alive power,This can be generated when you have a interruption to the ECM memory,this can be caused by a bad battery connection,or a open fuse to the KAPWR (keep alive power)

Nov 11, 2012 | Cars & Trucks

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Internal Control Module Keep Alive Memory (KAM)


P0603 means Internal Control Module Keep Alive Memory (KAM) Error

In other words, that code is set when the PCM loses "keep alive" memory B+.

This code can also be set if the batteries went dead at some point, but mainly it means there is an open circuit detected in the KAM circuit.

On a '97 F-250, check for a 5 amp fuse blown in fuse cavity #2. If the fuse is blown, check for and repair the short-to-ground in circuit #729 (red with white coloured wire).

Good luck dear.

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Jan 24, 2010 | 2004 Honda Accord

1 Answer

Electrical problems


check the connectors to the display, u are loosing the keep alive memory circuit.

Mar 06, 2009 | 2001 Audi A6

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