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DTC Description
 
 
DTC DETECTION LOGIC
DTCM.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
P011600ECT SENSOR
(Engine coolant temperature sensor 1 circuit range/performance)
ADiagnosis conditionEngine cold start
Signal (terminal)Engine coolant temperature sensor signal
ThresholdThe comparison result of signals transmitted to ECM from each temperature sensor (IAT sensor, ECT sensor, FTT sensor, and EOT sensor) shows that the voltage signal of the ECT sensor is higher/lower than that of other temperature sensors when the engine is started with its cold state
Diagnosis delay time
BDiagnosis condition
Signal (terminal)Engine coolant temperature sensor signal
ThresholdEngine coolant temperature signal from engine coolant temperature sensor does not fluctuate, even when some time has passed after starting the engine with pre-warming up condition
Diagnosis delay time
 
 
POSSIBLE CAUSE
  • Harness or connectors (High or low resistance in the engine coolant temperature sensor circuit)
  • Engine coolant temperature sensor
 
 
FAIL-SAFE
Not applicable
 
 
DTC Confirmation Procedure
1.INSPECTION START
Is it necessary to erase permanent DTC?
.
.
 
2.PERFORM COMPONENT FUNCTION CHECK
Perform Component Function Check. Refer to Component Function CheckComponent Inspection
Is the inspection result normal?
INSPECTION END
 
3.PRECONDITIONING
If DTC CONFIRMATION PROCEDURE has been previously conducted, always perform the following procedure before conducting the next test.
  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
  • Before performing the following procedure, do not add fuel.
  • Before performing the following procedure, check that fuel level is between 1/4 and 4/4.
  • Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.
: .
 
4.PERFORM DTC CONFIRMATION PROCEDURE
  1. Move the vehicle to a cool place.
    noteCool the vehicle in an environment of ambient air temperature between −10°C (14°F) and 35°C (95°F).
  2. Turn ignition switch OFF and leave the vehicle for 12 hours.
    cautionNever turn ignition switch ON during this procedure.
    noteThe vehicle must be cooled with the hood open.
  3. Start engine and let it idle for 20 minutes or more.
    cautionNever turn ignition switch OFF during idling.
  4. Check 1st trip DTC.
Is 1st trip DTC detected?
-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END