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Home >> Toyota >> 2019 >> RAV4 LE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 133 (Engine Control System (A25A-FXS) (W/ Canister Pump Module) - Diagnostic Codes (03 Of 13)) >> SFI SYSTEM (w/ Canister Pump Module) >> DTC P0115-11: Engine Coolant Temperature Sensor 1 Circuit Short to Ground [06/2020 - 08/2020] >> Description
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DTC P0115-11: Engine Coolant Temperature Sensor 1 Circuit Short to Ground [06/2020 - 08/2020]: Description

WARNING: This page is about a different variant/trim than selected.

A thermistor, whose resistance value varies according to the engine coolant temperature, is built into the engine coolant temperature sensor. The structure of the sensor and its connection to the ECM are the same as those of the intake air temperature sensor.

Refer to DTC P0110-11.

Refer to DTC P0110-11: Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Ground [06/2020 - 08/2020] 

HINT: 

When DTC P0115-11 is stored, the ECM enters fail-safe mode. During fail-safe mode, the engine coolant temperature is estimated to be 80°C (176°F) by the ECM. Fail-safe mode continues until a pass condition is detected.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P0115-11 Engine Coolant Temperature Sensor 1 Circuit Short to Ground The engine coolant temperature sensor output voltage is less than 0.142 V for 0.5 seconds or more (1 trip detection logic).
  • Short in engine coolant temperature sensor circuit
  • Engine coolant temperature sensor
  • ECM
Comes on DTC stored SAE Code: P0117

HINT: 

When this DTC is output, check the engine coolant temperature in the Data List. Enter the following menus: Powertrain / Engine / Data List / Coolant Temperature.

DTC No. Coolant Temperature Malfunction
P0115-11 Higher than 135°C (275°F) Short to ground in THW circuit

If the Data List values are normal, it may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.

Refer to CHECK FOR INTERMITTENT PROBLEMS [02/2019 - 08/2020]