LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2023 >> BRZ Premium, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (1 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0116: Engine Coolant Temperature Sensor 1 Circuit Range/Performance >> General Description >> Diagnostic Method
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Method

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
|Engine coolant temperature at first engine start - Intake air temperature 21 sec. after first engine start| More than value of Map
|Engine coolant temperature at first engine start - Ambient air temperature at first engine start| More than 25°C (45°F)
TEMPERATURE SPECIFICATION - MAP

Ambient temperature (°C (°F)) -30 (-22) 30 (86) 45 (113) 60 (140)
|Engine coolant temperature at first engine start - Intake air temperature 21 sec. after first engine start| (°C (°F)) 17 (31) 17 (31) 22 (40) 22 (40)

Time needed for diagnosis:  Less than 1 s

Malfunction indicator light illumination:  Illuminates when malfunction occurs in 2 continuous driving cycles.