Enable Condition

2014 Subaru Impreza Sport LimitedSECTION Enable Condition
WARNING: This page is about a different car, the 2014 Subaru XV Crosstrek. However, it is still accessible from the selected car via links, so may be relevant.
  • Diagnosis 1 
Secondary Parameters Enable Conditions
Soaking time ≥ 21600 s
Engine speed > 500 rpm
Block heater judgment Completed
Block heater activation not activate
BLOCK HEATER JUDGMENT

Parameter Enable Conditions
Engine speed > 500 rpm

Judge as "Block heater is not activate" when the following conditions are established.

JUDGMENT VALUE

Judgment criteria Threshold Value
Σ (Engine coolant temperature - Engine coolant temperature at engine start) ≥ -10 °C (-18°F)

Time Needed for Judgment:  1 s x 20 times

  • Diagnosis 2 
Secondary Parameters Enable Conditions
Battery voltage ≥ 10.9 V
Engine coolant temperature ≥ 60 °C (140 °F)
Intake air amount sum value ≥ Value of Map 1
Number of experiences under conditions below ≥ 3 time(s)
  • Continuous time when vehicle speed is less than 4 km/h (2.5 MPH)
≥ Value from Map 2
  • Continuous time when vehicle speed is 40 km/h (24.9 MPH) or more and intake air amount is 10 g/s (0.35 oz/s) or more.
≥ 15 s
MAP 1 SPECIFICATION

Engine coolant temperature °C (°F) -30 (-22) -10 (14) 0 (32) 10 (50) 20 (68)
Intake air amount sum value (g (oz)) 60000 (2116.2) 8500 (299.8) 7500 (264.53) 7000 (246.89) 5000 (176.35)
MAP 2 SPECIFICATION

Engine coolant temperature °C (°F) -30 (-22) -10 (14) 0 (32) 10 (50) 20 (68)
Continuous time (s) when vehicle speed is less than 4 km/h (2.5 MPH) 180 100 70 45 20
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.