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TuningBot DTC Database · v4.37.14

P2B59 Engine Coolant Flow Control Valve Control Circuit/Open

Generic (OBD-II) interpretation + 1 manufacturer-specific in the TuningBot DTC database.

P · PowertrainThermal_managementOBD2
Brand pages:Kia

Generic (OBD-II) interpretation

P2B59
Engine Coolant Flow Control Valve Control Circuit/Open Generic · thermal_management Data confidence 65%

The control module detected an interruption (open circuit) in the Engine Coolant Flow Control Valve Control circuit, so the expected electrical continuity was not present.

Manufacturer-specific interpretations

Kia

1 interpretation
P2B59:F0
Engine coolant flow-control valve control circuit/open Kia · engine Low Data confidence 99%

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 to 2025 Kia K5 (DL3)|2024-2025 Sorento (MQ4a)|2024-2025 Sportage (NQ5/NQ5a)|specified production dates|2.5L GDI/T-GDI Theta III Engine Control Unit (ECU)

Related and nearby codes

How to read P2B59

P

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 control module detected an interruption (open circuit) in the Engine Coolant Flow Control Valve Control circuit, so the expected electrical continuity was not present.

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 and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningStage 1 dyno results for Kia engines See the results →

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