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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 P1614: Electric Thermostat Output Drive - Short To Ground >> Bosch ME7.2 EMS DTC P1614 - Electric Thermostat Output Drive Signal Fault: Last Occurrence - Minimum Signal >> Possible Causes

Possible Causes

  1. Engine Compartment Fusebox - Fuse 1. See step  1 under CHECK.
  2. Short circuit C0606/31 (NW) to ground. See step  2 under CHECK.
  3. Connectors C0606, C0422, C0570. See step  3 under CHECK.
  4. Harness integrity. See step  4 under CHECK.
  5. Thermostat heater element short circuit to ground. See step  5 under CHECK.
  6. Engine coolant temperature sensor. See step  6 under CHECK.
  7. Radiator outlet temperature sensor. See step  7 under CHECK.
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