OBD-II Code Jeep

P1199 — Jeep — Radiator Temperature Sensor Voltage Too Low

The radiator temperature sensor sends a voltage lower than the expected range.

Brand Jeep
System Cooling System
Severity Medium
Safe to drive? Not recommended
Advanced scanner Yes

What does code P1199 mean on Jeep vehicles?

The radiator temperature sensor sends a voltage lower than the expected range.

Common symptoms

  • Overheating not detected
  • cooling fan inactive

Possible causes

  • Open circuit
  • faulty sensor

Initial recommendation

Inspect radiator temperature sensor and circuit.

Safety notice

This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.

Analyze this code with MecaOBD

Use the app to combine Jeep code P1199 with your vehicle's actual symptoms for more complete diagnostic guidance.

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