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Home >> Land Rover >> 2003 >> Range Rover >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - With Codes >> Diagnostic Tests >> DTC P0128: Stuck Thermostat >> Bosch ME7.2 EMS DTC P0128 - Stuck Thermostat Fault: Last Occurrence - Plausibility >> Possible Causes

Possible Causes

  1. Connectors C0606, C0331, C2348, C0169, C0422. See step  1 under CHECK.
  2. Harness integrity. See step  2 under CHECK.
  3. Thermostat stuck open. See step  3 under CHECK.
  4. Engine coolant temperature sensor. See step  4 under CHECK.
  5. Radiator outlet temperature sensor. See step  5 under CHECK.
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