OBDII Code List
P0116 2000 TOYOTA ECHO

P0116 2000 TOYOTA ECHO - Engine Coolant Temperature Circuit Range/Performance Problem

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What does this mean?

Possible causes

  • Low Engine Coolant Level
  • Faulty Engine Coolant Temperature (ECT) sensor
  • Faulty Engine Coolant Thermostat
  • Engine Coolant Temperature (ECT) sensor harness is open or shorted
  • Engine Coolant Temperature (ECT) sensor circuit poor electrical connection
  • Cooling System

When is the code detected?

Coolant temperature signal sent to the ngine Control Module (ECM) is not within specified range.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0116 2000 Toyota Echo Description

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.
OBDII Code P0116 2000 Toyota Echo - Engine Coolant Temperature Circuit Range/Performance Problem - Engine-Codes.com

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