Fault Code P0603
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0603
Internal Control Module Keep Alive Memory Error
Error in engine control unit's Keep Alive Memory (KAM).
Part Details
Part Name
Engine control unit (ECU)
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪300 - ₪5,000
Engine Location
Engine compartment
Symptoms
- Check Engine light
- Loss of idle adaptations
Possible Causes
- 1Battery voltage disconnected/low
- 2Faulty ECU
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