Subaru 2009 IMPREZA Service Manual page 1686

Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BC:DTC P0410 SECONDARY AIR INJECTION SYSTEM
1. OUTLINE OF DIAGNOSIS
Detect NG judging from secondary air delivery pipe pressure, pulse of secondary air delivery pipe pressure
and secondary air pipe airflow amount.
2. ENABLE CONDITIONS
Secondary Parameters
Pump supply pressure check
Estimate ambient temperature
Battery voltage
Barometric pressure
Engine
Amount of intake air
Secondary air pump
Combination valve
Combination valve one side closed
pulse diagnosis
Estimate ambient temperature
Battery voltage
Barometric pressure
Engine
Feasible area for diagnosis
After fuel cut
Combination valve both closed pulse
diagnosis
Estimate ambient temperature
Battery voltage
Barometric pressure
Engine
Engine load
After fuel cut
Combination valve changeover pres-
sure diagnosis
Estimate ambient temperature
Battery voltage
Barometric pressure
Engine
Amount of intake air
Engine speed
After fuel cut
Overflow diagnosis
Estimate ambient temperature
Battery voltage
Barometric pressure
Engine
3. GENERAL DRIVING CYCLE
Perform diagnosis during secondary air pump operation
Enable Condition
4.4 °C
10.9 V
75 kPa (563 mmHg, 22.2 inHg)
In operation
2 g/s (0.07 oz/s)
Operating
Bank open (Except with both
banks closed)
4.4 °C
10.9 V
75 kPa (563 mmHg, 22.2 inHg)
In operation
Value of Map 10 1
0 ms
4.4 °C
10.9 V
75 kPa (563 mmHg, 22.2 inHg)
In operation
0.2 g/rev (0.01 oz/rev)
1000 ms
4.4 °C
10.9 V
75 kPa (563 mmHg, 22.2 inHg)
In operation
> 2 g/s (0.07 oz/s)
and
< 25 g/s (0.88 oz/s)
< 4000 rpm
1000 ms
4.4 °C
10.9 V
75 kPa (563 mmHg, 22.2 inHg)
In operation
GD(H4DOTC)-98