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Home >> Jaguar >> 2012 >> XJ L >> Repair and Diagnosis >> Electrical >> Starter >> Starting System - V8 5.0L Petrol/V8 S/C 5.0L Petrol -- XJ/X351 >> Starting System - V8 5.0L Petrol/V8 S/C 5.0L Petrol >> Diagnosis And Testing >> ECO System Inhibits

ECO System Inhibits

The inhibit conditions listed below will not set Diagnostic Trouble Codes (DTCs) but will set flags which can be viewed using the manufacturer approved diagnostic system - Datalogger/Engine Control Module (ECM). Normal ECO system operation will resume when an inhibit condition is no longer present, but the battery related inhibits may persist for some time.

NOTE:
  • Performing a DTC clear on a petrol (gas) engine vehicle will inhibit the auto stop/start system.
  • Do not reset the Battery Monitoring System (BMS) to rectify battery condition inhibits. This may temporarily restore ECO system operation but will lead to a recurrence of the fault.
INHIBITS
  • ECO switch has been pressed by driver
  • DTC clear performed
  • Transmission not in neutral
  • Accelerator pedal not released
  • Hood open detected
  • Driver door detected open
  • Driver seatbelt not fastened
  • All terrain progress control special programme selected
  • Climate control demand exceeds calibrated threshold
  • Heated windshield operating
  • Trailer connected
  • Brake booster vacuum below threshold
  • Engine coolant temperature below threshold
  • Engine oil temperature below threshold
  • Catalytic converter outside either pre or post calibration range
  • Battery state of charge low
  • Battery cold cranking capability below threshold
  • Ambient temperature above 40°C
  • Ambient temperature below 0°C
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