Subaru Impreza 2004 Service Manual page 20

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
Check
Is any other DTC displayed?
EN(H4DOTC)(diag)-99
ENGINE (DIAGNOSTICS)
Yes
Inspect the rele- Replace the mass
vant DTC using air flow and intake
"List of Diagnostic air temperature
Trouble Code sensor. <Ref. to
(DTC)". <Ref. to FU(H4DOTC)-34,
EN(H4DOTC)(dia Mass Air Flow and
g)-74, List of Diag- Intake Air Temper-
nostic Trouble ature Sensor.>
Code (DTC).>
NOTE:
In this case, it is
not necessary to
inspect DTC
P0101.
No