Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
P0603 - Internal Control Module Keep Alive Memory (KAM) Error
2003 Ford Windstar BaseSECTION P0603 - Internal Control Module Keep Alive Memory (KAM) Error
WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
P0603 - INTERNAL CONTROL MODULE KEEP ALIVE MEMORY (KAM) ERROR
| Description: | Indicates the powertrain control module (PCM) has experienced an internal memory concern. However, there are external items that can cause this DTC. | |||
| Possible Causes: |
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| Diagnostic Aids: | If KAPWR is interrupted to the PCM because of a battery or PCM disconnect, a DTC can be generated on the first power-up. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | refer to PINPOINT TEST QB . | - | - | |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.