Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 208
EN(H4DOTC)(diag)-56
Drive Cycle
ENGINE (DIAGNOSTICS)
3. DRIVE CYCLE B
Diagnostic procedure:
1) Drive at 10 km/h (6 MPH) or more.
2) Stop the vehicle and idle for ten minutes.
4. DRIVE CYCLE C
DTC
Item
Condition
*P0125
Insufficient Coolant Temperature for Closed Loop Fuel Control
«Coolant Temp.» at engine
start: Less than 15°C (5°F)
*P0171
System Too Lean (Bank 1)
Complete diagnosis with drive
cycle A or C as well.
*P0172
System Too Rich (Bank 1)
Complete diagnosis with drive
cycle A or C as well.
*P0300
Random/Multiple Cylinder Misfire Detected
Complete diagnosis with drive
cycle A or C as well.
*P0301
Cylinder 1 Misfire Detected
Complete diagnosis with drive
cycle A or C as well.
*P0302
Cylinder 2 Misfire Detected
Complete diagnosis with drive
cycle A or C as well.
*P0303
Cylinder 3 Misfire Detected
Complete diagnosis with drive
cycle A or C as well.
*P0304
Cylinder 4 Misfire Detected
Complete diagnosis with drive
cycle A or C as well.
*P0506
Idle Air Control System RPM Lower Than Expected
—
*P0507
Idle Air Control System RPM Higher Than Expected
—
*P2096
Post Catalyst Fuel Trim System Too Lean (Bank 1)
Complete diagnosis with drive
cycle A or C as well.
*P2097
Post Catalyst Fuel Trim System Too Rich (Bank 1)
Complete diagnosis with drive
cycle A or C as well.
*P219A
Bank 1 Air-Fuel Ratio Imbalance
Complete diagnosis with drive
cycle C as well.
DTC
Item
Condition
*P0030
HO2S Heater Control Circuit (Bank 1 Sensor 1)
—
*P0068
MAP/MAF - Throttle Position Correlation
—
*P0101
Mass or Volume Air Flow Circuit Range/Performance
—
P0134
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
—
*P013A
O2 Sensor Slow Response - Rich to Lean (Bank 1 Sensor 2)
—
*P013B
O2 Sensor Slow Response - Lean to Rich (Bank 1 Sensor 2)
—
*P013E
O2 Sensor Delayed Response - Rich to Lean (Bank 1 Sensor 2)
—
*P013F
O2 Sensor Delayed Response - Lean to Rich (Bank 1 Sensor 2)
—
*P0171
System Too Lean (Bank 1)
Complete diagnosis with drive
cycle A or B as well.
*P0172
System Too Rich (Bank 1)
Complete diagnosis with drive
cycle A or B as well.
P0244
Turbo/Super Charger Wastegate Solenoid “A” Range/Performance
—
P0246
Turbo/Super Charger Wastegate Solenoid “A” High
—
*P0300
Random/Multiple Cylinder Misfire Detected
Complete diagnosis with drive
cycle A or B as well.
*P0301
Cylinder 1 Misfire Detected
Complete diagnosis with drive
cycle A or B as well.
*P0302
Cylinder 2 Misfire Detected
Complete diagnosis with drive
cycle A or B as well.
EN(H4DOTC)(diag)-57
Drive Cycle
ENGINE (DIAGNOSTICS)
Diagnostic procedure:
Drive according to the drive pattern described below.
*P0303
Cylinder 3 Misfire Detected
Complete diagnosis with drive
cycle A or B as well.
*P0304
Cylinder 4 Misfire Detected
Complete diagnosis with drive
cycle A or B as well.
*P0441
Evaporative Emission Cont. Sys. Incorrect Purge Flow
—
*P1449
Evaporative Emission Cont. Sys. Air Filter Clog
—
P2004
Intake Manifold Runner Control Stuck Open (Bank 1)
—
P2005
Intake Manifold Runner Control Stuck Open (Bank 2)
—
*P2096
Post Catalyst Fuel Trim System Too Lean (Bank 1)
Complete diagnosis with drive
cycle A or B as well.
*P2097
Post Catalyst Fuel Trim System Too Rich (Bank 1)
Complete diagnosis with drive
cycle A or B as well.
*P219A
Bank 1 Air-Fuel Ratio Imbalance
Complete diagnosis with drive
cycle B as well.
(A)
Place the shift lever in neutral
position, and let the engine idle for
10 seconds or more.
(D)
Decelerate with fully closed throt-
tle to 64 km/h (40 MPH) or less.
(G)
Stop the vehicle with throttle fully
closed.
(B)
Accelerate to 97 km/h (60 MPH)
or more within 20 seconds.
(E)
Drive for 20 seconds or more at
64 km/h (40 MPH) or less.
(H)
Vehicle speed km/h (MPH)
(C)
Drive for 20 seconds or more at
97 km/h (60 MPH) or more.
(F)
Accelerate to 97 km/h (60 MPH)
or more within 10 seconds.
(I)
Sec.
DTC
Item
Condition
EN-00842
(C)
(H)
(I)
(60)
97
64 (40)
(B)
(A)
(F)
(D)
(E)
150
100
50
0
(G)
EN(H4DOTC)(diag)-58
Drive Cycle
ENGINE (DIAGNOSTICS)
5. DRIVE CYCLE E
Diagnostic procedure:
1) Make sure that the battery voltage is 10.9 V or more.
2) Perform the Clear Memory Mode. <Ref. to EN(H4DOTC)(diag)-63, Clear Memory Mode.>
3) Drive for approximately 30 L (7.9 US gal, 6.6 Imp gal) of fuel.
NOTE:
• It is acceptable to drive the vehicle intermittently.
• Do not disconnect the battery terminals while diagnosing. (Data will be cleared by disconnecting the bat-
tery terminals.)
6. DRIVE CYCLE F
Diagnostic procedure:
1) Make sure that the engine coolant temperature is less than 30°C (86°F).
2) Drive according to the drive pattern described below.
NOTE:
• There is no given transition time between idling and cruising.
• Driving at constant speed only on a downhill causes smaller engine load and may result in failure to obtain
a right diagnostic result.
• When the engine stops while performing drive cycle F, perform it again from the state of procedure 1).
DTC
Item
Condition
*P0461
Fuel Level Sensor “A” Circuit Range/Performance
—
DTC
Item
Condition
*P0111
Intake Air Temperature Sensor 1 Circuit Range/Performance
—
(A)
Vehicle speed
(B)
Elapsed time
(1)
Idle the engine for 10 seconds or
more after engine start.
(4)
Drive for 30 seconds or more at a
constant speed of 80 km/h (50
MPH) or more.
(6)
Drive for 30 seconds or more at a
constant speed of 80 km/h (50
MPH) or more.
(2)
Drive for 8 minutes or more at a
constant speed of 80 km/h (50
MPH) or more.
(5)
Stop the vehicle and idle for 30
seconds or more.
(7)
Stop the vehicle and idle for 30 sec-
onds.
(3)
Stop the vehicle and idle for 30
seconds or more.
(A)
(B)
0
80 km/h
(50 MPH)
EN-07588
(1)
(4)
(6)
(2)
(3)
(5)
(7)
EN(H4DOTC)(diag)-59
Drive Cycle
ENGINE (DIAGNOSTICS)
7. DRIVE CYCLE G
Diagnostic procedure:
1) Disconnect the battery negative terminal, and reconnect after at least 10 seconds have passed.
2) Idle the engine until engine coolant temperature is 80°C (176°F) more.
3) Stop the engine to decrease the engine coolant temperature down to 40°C (104°F) or less.
NOTE:
Do not let engine coolant temperature drop to 5°C (41°F) or less.
4) Idle the engine until engine coolant temperature is 80°C (176°F) more.
5) Stop the engine to decrease the engine coolant temperature down to 40°C (104°F) or less.
NOTE:
Do not let engine coolant temperature drop to 5°C (41°F) or less.
6) Idle the engine.
8. DRIVE CYCLE H
Diagnostic procedure:
1) Perform the Clear Memory Mode. <Ref. to EN(H4DOTC)(diag)-63, Clear Memory Mode.>
<Ref. to EN(H4DOTC)(diag)-40, Subaru Select Monitor.>
3) If the values from step 2) satisfy the following conditions, idle the engine for one minute.
Condition:
|Engine coolant temperature — Intake air temperature|
≤
5°C (9°F)
NOTE:
• If the conditions are not satisfied, turn the ignition switch to OFF and wait until the parameters are satisfied.
• Do not move the shift lever from neutral position during idling.
DTC
Item
Condition
*
P0410
Secondary Air Injection System
—
*
P0411
Secondary Air Injection System Incorrect Flow Detected
—
P0414
Secondary Air Injection System Switching Valve “A” Circuit Shorted
—
P0417
Secondary Air Injection System Switching Valve “B” Circuit Shorted
—
P2258
Air System Control "A" Circuit High
—
*
P2440
Secondary Air Injection System Switching Valve Stuck Open (Bank1)
—
*
P2441
Secondary Air Injection System Switching Valve Stuck Closed (Bank1)
—
*
P2442
Secondary Air Injection System Switching Valve Stuck Open (Bank2)
—
*
P2443
Secondary Air Injection System Switching Valve Stuck Closed (Bank2)
—
DTC
Item
Condition
*
P050A
Cold Start Idle Air Control System Performance
—
*
P050B
Cold Start Ignition Timing Performance
—
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