Subaru Impreza 2003, Service Manual

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EN(H4DOTC)-47
ENGINE (DIAGNOSTICS)
DRIVE CYCLE
3. IDLE FOR 10 MINUTES
NOTE:
Before the diagnosis, drive the vehicle at 10 km/h (6 MPH) or more.
4. DRIVE ACCORDING TO THE FOLLOWING DRIVE PATTERN
DTC Item Condition
*P0483 Cooling Fan Rationality Check —
*P0506 Idle Control System RPM Lower Than Expected —
*P0507 Idle Control System RPM Higher Than Expected —
(A) Idle engine for 10 seconds or
more. (D) Decelerate with fully closed throt-
tle to 64 km/h (40 MPH). (G) Stop vehicle with throttle fully
closed.
(B) Accelerate to 97 km/h (60 MPH)
within 20 seconds. (E) Drive vehicle at 64 km/h (40 MPH)
for 20 seconds.
(C) Drive vehicle at 97 km/h (60 MPH)
for 20 seconds. (F) Accelerate to 97 km/h (60 MPH)
within 10 seconds.
DTC Item Condition
*P0121 Throttle/Pedal Position Sensor/Switch “A” Circuit Range/Performance —
*P0139 O
2
Sensor Circuit Slow Response (Bank 1 Sensor 2) —
*P0301 Cylinder 1 Misfire Detected In some cases, diagnosis may
complete at once.
*P0302 Cylinder 2 Misfire Detected In some cases, diagnosis may
complete at once.
*P0303 Cylinder 3 Misfire Detected In some cases, diagnosis may
complete at once.
*P0304 Cylinder 4 Misfire Detected In some cases, diagnosis may
complete at once.
*P0101 Mass or Volume Air Flow Circuit Range/Performance —
P0244 Turbo/Super Charger Wastegate Solenoid “A” Range/Performance —
P1301 Misfire Detected (High Temperature Exhaust Gas) —
P1544 Exhaust Gas Temperature Too High —
EN-00842
(C)
Vehicle speed km/h (MPH)
(Seconds)
(60)
97
64 (40)
(B)
(A)
(F) (D)
(E)
150 100 50
0
(G)