P · PowertrainEngineSeverity: LowDriveability: NormalUDS
What P2B59 means
P2B59:F0
Engine coolant flow-control valve control circuit/open
Kia · engine
LowData confidence99%
The cited OEM bulletin documents P2B59:F0 for Kia in the stated vehicle and controller context. It identifies engine coolant flow-control valve control circuit/open; the bulletin-specific condition must not be generalized to other platforms or modules.
Symptoms
Malfunction indicator lamp illuminated while driving
bulletin states no related drivability issue
Possible causes
ECU judgment-logic issue addressed by software
Recommended checks
Perform a full module scan
Review freeze-frame and occurrence data
Inspect relevant wiring and connectors
Check power supplies and grounds
Compare commanded and measured values
Check applicable OEM service information
Applies to2025 Kia K5 (DL3)|2024-2025 Sorento (MQ4a)|2024-2025 Sportage (NQ5/NQ5a)|specified production dates|2.5L GDI/T-GDI Theta IIIEngine Control Unit (ECU)
Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
B59
Specific fault index within the subsystem.
Frequently asked questions about P2B59
What does P2B59 mean?
Engine coolant flow-control valve control circuit/open. The cited OEM bulletin documents P2B59:F0 for Kia in the stated vehicle and controller context. It identifies engine coolant flow-control valve control circuit/open; the bulletin-specific condition must not be generalized to other platforms or modules.
Is P2B59 generic or manufacturer-specific?
P2B59 exists both as a generic OBD-II code (same meaning on every make) and with 1 manufacturer-specific interpretation(s): Kia. Always read it in the context of your vehicle.
Can TuningBot remove P2B59 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
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