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1997 cadillac deville wont accelerate past 15- 20 mph here are the codes i pulled DTC P0603 Control Module Long Term Memory Reset DTC B1552 Keep Alive Memory (KAM) Error DTC B1341 Air Mix Door Two Movement Fault DTC C1255 EBCM Internal Malfunction DTC B1552 Keep Alive Memory (KAM) Error (pzm) DTC B1558 BCM EPROM Checksum Error DTC B1971 Inadvertent Power DTC B1983 Device Power Circuit Low

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P0603 - GM Type Powertrain - Computer and Auxiliary Outputs - ISO/SAE Controlled Description Control Module Long Term Memory Reset Conditions
Cause DTC P0604 not set, key on, then the PCM determined that its calculated checksum that did not match a previous checksum • Refer to code repair chart for instructions on how to replace a PCM and how to reprogram the replacement
or you can ask the 24 hrs live technical support obd2 bmw icom, they will like to help you, good luck

Posted on Sep 12, 2013

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SOURCE: 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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Posted on Jan 24, 2010

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Failed ecm p0603


Instead of guessing as to what the problem is or expecting someone on here having a magical fix , take it to a qualified repair shop. Before assuming the worst an wanting to condem the PCM - powertrain control module . Will a scan tool communicate with it ? If your pulling codes it is .
DTC P0603 Control Module Long Term Memory Reset
The PCM has a memory area where it stores certain data it needs to save when the key is turned OFF. This area is called Keep Alive Memory. This diagnostic test monitors the PCM's keep alive memory for a loss or unintended change of data. If such a condition occurs, DTC P0603 will set.
Diagnostic Aids
If the battery has been disconnected for any reason DTC P0603 will set. The PCM keeps a running check on the memory; if memory changes it resets. An intermittent loss of power or ground to the PCM will cause a reset.

Have you disconnected the battery ?
Diagnostic Aids
If the battery has been disconnected for any reason DTC P0603 will set. The PCM keeps a running check on the memory; if memory changes it resets. An intermittent loss of power or ground to the PCM will cause a reset.

Jun 21, 2017 | 1997 Oldsmobile Aurora

1 Answer

How to fix code P0603 code on 1996 cadillac eldorado


P0603 - Internal Control Module Keep Alive Memory Error

Possible causes- Loose or poor battery terminal connection
- Low battery charge
- ECM/PCM power supply circuit is open or shorted
- ECM/PCM Programing
- Faulty ECM/PCM

Jun 15, 2012 | Cars & Trucks

1 Answer

So I have a problem with my Cadillac Deville starting up sometimes, it hesitates and sounds like it trying to start then it stalls out then i crank it again and it will usually start with a lil smoke...


The only one to be concerned about right off isP0603 "Control Module long term reset". Once this is figured out the other codes will probably clear.

Possible causes Loose or poor battery terminal connection Low battery charge Engine Control Module (ECM) / Powertrain Control Module (PCM) power supply circuit is open or shorted ECM/PCM Programing Faulty ECM/PCM

Read more: https://www.autocodes.com/p0603_chevrolet.html

Sep 20, 2017 | 1997 Cadillac DeVille

1 Answer

Can anyone tell me what the following codes are on my 1997 Cadillac Deville?? P0139, P0603, P1139, and P1599.....


Firstly, they are al P type codes, which refers to PCM.

P0139 - HO2S (Heated Oxygen Sensor) Slow Response Bank 1 Sensor 2. This is is the sensor in front of the catalytic converter.

P0603 - Internal Control Module Keep Alive Memory error. This error normally comes up when the battery is disconnected.

P1139 - HO2S (Heated Oxygen Sensor) Insufficent Switching Bank 1 Sensor 2. (see above)

P1599 - Engine Stall or Near Stall Detected.

I hope this helps.....I would attempt erasing the codes first and see if they come back, and then going from there.

Oct 13, 2010 | 1997 Cadillac DeVille

1 Answer

DTC Code P0603 and P0231, 7.3 Powerstroke diesel. What do they indicate?


P0231- fuel pump secondary circuit low
P0603- power train control module keep alive memory (KAM).

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1 Answer

P0603 DTC code- internal ctrl mod kam error


"kam" is keep alive memory, which is memory in your powertrain computer that needs to always have battery power to be kept... if your battery has been disconnected, this is what caused this code to be logged. If not, you might want to check for a blown fuse to your control module or a short circuit in the wiring to your module... That is if the code is still active, if the code is a stored code it just means at some point in time the module lost power (battery disconnected, fuse pulled, ...) and now it has worked fine since...

Sep 15, 2009 | 2003 Ford F350 Super Duty DRW SuperCab

1 Answer

The ecm has detected failed oil level switch. where is it?


well this is the meaning of the codes ,looks like there was a chain reaction ,,,,i have the first code now on my car , i did plugs and wires but no help , good luck,P0300 - Engine Misfire Detected P0463 - Fuel Level Sensor Circuit High Voltage P0603 - Control Module Long Term Memory Reset P0741 - TCC System Stuck Off P1617 - Engine Oil Level Switch Circuit

Jun 14, 2009 | 1999 Cadillac Eldorado

1 Answer

REPLACED STEERING COLUM


You May need to Use The Old Ignition Lock & Key ,Due to the Chip In the Key.


Circuit Description

The PCM has a memory area where it stores certain data it needs to save when the key is turned OFF. This area is called Keep Alive Memory. This diagnostic test monitors the PCM's keep alive memory for a loss or unintended change of data. If such a condition occurs, DTC P0603 will set.

Conditions for Setting the DTC

Test Condition


Test continuously.

Failure Condition

Keep alive memory checksum does not match previous checksum.

Action Taken When the DTC Sets

  • Clear all keep alive memory locations.
  • The Malfunction Indicator Lamp (MIL) will not illuminate.
  • No message will be displayed.
Conditions for Clearing the DTC

  • A History DTC will clear after forty consecutive warm-up cycles with no failures of any non-emission related diagnostic test.
  • A Last Test Failed (current) DTC will clear when the diagnostic runs and does not fail.
  • PCM battery voltage is interrupted.
  • Using a Scan tool.
Diagnostic Aids

If the battery has been disconnected for any reason DTC P0603 will set. The PCM keeps a running check on the memory; if memory changes it resets. An intermittent loss of power or ground to the PCM will cause a reset.

Jan 25, 2009 | 1996 Oldsmobile Aurora

3 Answers

1997 ford powerstroke DTC codes


autozone has repair manuals from haynes they generally have the code lists in them hope this helps

Aug 23, 2008 | 1997 Ford F350 Crew Cab

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