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P0125 – Land Rover DTC

Land Rover DTC P0125 – Engine Coolant Temp Sensor Warm Up Fault

DTC P0125 meaning on Land Rover

  1. DTC P0125 indicates a Warm Up Fault related to the Engine Coolant Temperature (ECT) sensor on a Land Rover.

Land Rover DTC P0125 symptoms

  1. Check Engine Light (CEL) may illuminate on the dashboard.
  2. Engine may take longer to reach operating temperature.
  3. Decreased fuel efficiency.

Land Rover DTC P0125 causes

  1. Defective Engine Coolant Temperature (ECT) sensor.
  2. Issues with the thermostat.
  3. Wiring or connector problems in the ECT circuit.

Land Rover DTC P0125 seriousness

  1. If left unresolved, DTC P0125 can lead to poor engine performance and reduced fuel efficiency.
  2. It may also cause increased emissions and potential damage to engine components over time.

How to diagnose DTC P0125 on Land Rover

  1. Use an OBD-II scanner to retrieve the specific fault code.
  2. Check the ECT sensor for proper operation and resistance values.
  3. Inspect the thermostat for proper functioning.
  4. Verify the wiring and connectors in the ECT circuit for any damage or loose connections.

How to fix DTC P0125 on Land Rover

  1. Replace the Engine Coolant Temperature (ECT) sensor if faulty.
  2. If the thermostat is the issue, replace it with a new one.
  3. Repair any damaged wiring or connectors in the ECT circuit.
  4. Clear the fault code and monitor the system for proper operation.

How to erase DTC P0125 on Land Rover

  1. Use an OBD-II scanner to clear the fault code from the vehicle’s computer.
  2. Ensure that the underlying issue causing DTC P0125 has been resolved before clearing the code.

Recommended tools for Land Rover diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

← All Land Rover Diagnostic Trouble Codes

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