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P1483

Engine Coolilng System Performance.

  • Chrysler
  • Powertrain
  • Manufacturer code
  • Medium severity

How this code is built

P
SystemPowertrain
1
Defined byThe manufacturer
4
AreaAuxiliary emission controls
83
FaultThe specific fault in that area

What it means

P1483 on a Chrysler means the powertrain control module judged that the engine cooling system is not performing as expected. It typically sets when coolant temperature stays too low, takes too long to reach normal operating temperature, or does not behave as the module expects for the conditions. The exact test and thresholds depend on the model and engine.

Symptoms

  • Engine management warning light on
  • Temperature gauge reading low or slow to rise
  • Poor cabin heater output
  • Engine running hot or the cooling fan running constantly or not at all
  • Worse fuel economy or rough running while cold
  • Coolant temperature readings that look implausible on a scan tool

Possible causes

  • Thermostat stuck open or opening too early, so the engine is slow to warm up or runs too coollikely
  • Faulty coolant temperature sensor giving an inaccurate readinglikely
  • Wiring or connector fault in the coolant temperature sensor circuit, such as corrosion or high resistancepossible
  • Cooling fan or fan control fault causing the fan to run when it should not, or fail to run when neededpossible
  • Low coolant level or air trapped in the system affecting temperature readingspossible
  • Restricted radiator, weak water pump or other flow problemrare
  • Outdated or faulty control module software, where a known issue is documented for that modelrare

How to diagnose

  1. Read the stored and pending codes and the freeze frame data, noting coolant temperature, engine load and vehicle speed when the code set.
  2. Check for any other codes, especially coolant temperature sensor or fan circuit codes, and deal with those first.
  3. Inspect the coolant level and condition when the engine is cold, and look for leaks, air locks or contamination.
  4. Inspect the coolant temperature sensor wiring and connector for damage, corrosion and poor contact.
  5. With a scan tool, watch coolant temperature from a cold start and compare it with a trusted external temperature measurement on the engine or hose.
  6. Check the time taken to reach normal operating temperature, and see whether it stalls below the thermostat rating, which suggests a stuck-open thermostat.
  7. Command the cooling fan on and off with a scan tool and check it runs at the right times and speeds.
  8. Check for any manufacturer service bulletins or software updates relating to this code for the specific model and engine.

How to fix

  • Replace the thermostat if it is stuck open or opening at the wrong temperature, and refill and bleed the system correctly.
  • Replace the coolant temperature sensor if its readings do not match actual engine temperature.
  • Repair or replace damaged wiring, terminals or connectors in the sensor or fan circuits.
  • Repair the cooling fan, relay or fan control fault, following the model-specific test procedure.
  • Top up or replace coolant with the correct specification and bleed out any trapped air.
  • Update the control module software only where an outdated calibration is a known cause for that vehicle.

Can I keep driving?

Medium severity

The car can usually be driven for a short time to get it checked, but fix it soon. If the temperature gauge shows overheating or you see warnings about engine temperature, stop and let it cool to avoid engine damage.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.

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