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TuningBot DTC Database · v4.37.15

P1199 Jeep - Radiator Temperature Sensor Voltage Too Low

Manufacturer-specific interpretation for Jeep. All interpretations of P1199

P · PowertrainThermal_managementOBD2

What P1199 means

P1199
Radiator Temperature Sensor Voltage Too Low Jeep · thermal_management Data confidence 62%

The control module detected that the Radiator Temperature Sensor Voltage value was below the expected limit. This is the manufacturer-specific definition used by Jeep.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Confirm the exact vehicle, ECU and software context
  • Inspect relevant wiring and connectors
  • Check applicable OEM service information

Related and nearby codes

How to read P1199

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

199

Specific fault index within the subsystem.

Frequently asked questions about P1199

What does P1199 mean?

Radiator Temperature Sensor Voltage Too Low. The control module detected that the Radiator Temperature Sensor Voltage value was below the expected limit. This is the manufacturer-specific definition used by Jeep.

Is P1199 generic or manufacturer-specific?

P1199 is a manufacturer-specific code. In this database it is documented for: Jeep. The same number can mean something different on other brands.

Can TuningBot remove P1199 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

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

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