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TuningBot DTC Database · v4.37.15

P0597 Thermostat Heater Control Circuit / Open

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainThermal_managementOBD2

What P0597 means

P0597
Thermostat Heater Control Circuit / Open Generic · thermal_management Data confidence 90%

The control module detected an interruption (open circuit) in the Thermostat Heater Control circuit, so the expected electrical continuity was not present.

Possible causes

  • Wiring
  • relay
  • thermostat heater

Related and nearby codes

How to read P0597

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

597

Specific fault index within the subsystem.

Frequently asked questions about P0597

What does P0597 mean?

Thermostat Heater Control Circuit / Open. The control module detected an interruption (open circuit) in the Thermostat Heater Control circuit, so the expected electrical continuity was not present.

Is P0597 generic or manufacturer-specific?

P0597 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0597 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.

Other file services

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