Fault Code P2603
Code meaning, symptoms, possible causes, part number, and estimated cost.
P2603
Coolant Pump 'A' Control Circuit High
This code indicates a high voltage condition in the control circuit of coolant pump 'A'. High voltage can damage the pump or prevent it from operating correctly.
Part Details
Part Name
Coolant Pump
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪600 - ₪1800
Engine Location
Engine Cooling System
Symptoms
- Engine overheating
- Noisy pump operation
- Check Engine Light on
- Engine not reaching operating temperature
Possible Causes
- 1Faulty coolant pump
- 2Short to voltage in wiring
- 3Loose/corroded connections
- 4Defective Engine Control Module (ECM)
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