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Home >> Subaru >> 2020 >> Crosstrek Base, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 24 (Engine Control System (Diagnostics) (HEV) (2 Of 4)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P040B: EGR Temperature Sensor "A" Circuit Range/Performance >> General Description >> Diagnostic Method

Diagnostic Method

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

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
| EGR gas temperature 4 sec. after hybrid system start - Ambient temperature 4 sec. after hybrid system start| More than value of Map
| EGR gas temperature 4 sec. after hybrid system start - Intake air temperature 4 sec. after hybrid system start| More than 25°C (45°F)
MAP SPECIFICATION

Ambient temperature (°C (°F)) -30 (-22) 30 (86) 45 (113) 60 (140)
|EGR gas temperature 4 sec. after hybrid system start - Ambient temperature 4 sec. after hybrid system start| (°C (°F)) 25.5 (45.9) 25.5 (45.9) 25.5 (45.9) 25.5 (45.9)

Time needed for diagnosis:  Less than 1 s

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