Inspection Mode U
| DTC | Description & trouble part | Condition | Number of driving cycles on the detecting condition |
|---|---|---|---|
| P0401 | EGR ABNORMAL (EGR AMOUNT TOO SMALL) | - | 2 |
| P0402 | EGR "A" FLOW EXCESSIVE DETECTED | - | 2 |
WARNING:
When performing inspection mode U on a public road, pay sufficient attention to the traffic condition and give the highest priority to safe driving.
NOTE:
Perform the inspection mode after warming up the engine except that the engine coolant temperature at engine start is specified.
- Using the Subaru Select Monitor, perform the clear memory of [Engine]. Ref. to COMMON (DIAGNOSTICS)>CLEAR MEMORY .
- Drive according to the drive pattern described below.
(1) Vehicle speed 60 km/h (37.3 MPH) (2) Deceleration for 10 seconds or more (There is no restriction to the driving operation) (3) Vehicle speed 40 km/h (24.9 MPH) (4) Engine speed 1300 RPM or more (A) Start the engine. (B) Idle the engine for 20 seconds or more. (C) Accelerate the vehicle to 60 km/h (37.3 MPH). (There is no restriction to the driving operation.) (E) With the accelerator pedal fully closed, decelerate the vehicle speed while taking at least 10 seconds and maintaining the vehicle speed at 40 km/h (24.9 MPH) or more as well as the engine speed 1300 RPM or more. (D) Drive at a constant speed. (Step (D) may be omitted according to road conditions.) (F) Park the vehicle and stop the engine. (Driving method while vehicle is driven to a stop at safe place is not restricted.) - Read the pending code using the Subaru Select Monitor or general scan tool. Ref. to COMMON (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .