Subaru Crosstrek Service Manual: Drive cycle Procedure
ENGINE (DIAGNOSTICS)(H4DO) > Drive Cycle
PROCEDURE
It is necessary to perform the drive cycle listed below if DTC is not found in the Inspection Mode. It is possible to complete diagnosis of the DTC by performing the indicated drive cycle. After the repair for the DTC, perform a necessary drive cycle and make sure the function recovers and the DTC is recorded.
1. PREPARATION FOR DRIVE CYCLE
1. Check that the battery voltage is 12 V or more and fuel remains approx. half [20 — 40 L (5.3 — 10.6 US gal, 4.4 — 8.8 Imp gal)].
2. After performing the diagnostics and Clear Memory Mode, check that no DTC remains. Clear Memory Mode">
3. Check the delivery (test) mode fuse is removed.
NOTE:
• Perform the drive cycle after warming up the engine except when the engine coolant temperature at engine start is specified.
• Perform the drive cycle twice if the DTC in the list is marked with *. After completing the first drive cycle, stop the engine and perform second diagnosis in same condition.
2. DRIVE CYCLE A
DTC | Item | Condition |
*P0128 | COOLANT THERMOSTAT (ENGINE COOLANT TEMPERATURE BELOW THERMOSTAT REGULATING TEMPERATURE) | — |
*P0141 | O2 SENSOR HEATER CIRCUIT BANK 1 SENSOR 2 | — |
*P014C | A/F / O2 SENSOR SLOW RESPONSE - RICH TO LEAN BANK 1 SENSOR 1 | — |
*P014D | A/F / O2 SENSOR SLOW RESPONSE - LEAN TO RICH BANK 1 SENSOR 1 | — |
*P015A | A/F / O2 SENSOR DELAYED RESPONSE - RICH TO LEAN BANK 1 SENSOR 1 | — |
*P015B | A/F / O2 SENSOR DELAYED RESPONSE - LEAN TO RICH BANK 1 SENSOR 1 | — |
*P0171 | SYSTEM TOO LEAN BANK 1 | Complete diagnosis with drive cycle B or C as well. |
*P0172 | SYSTEM TOO RICH BANK 1 | Complete diagnosis with drive cycle B or C as well. |
*P0300 | RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED | Complete diagnosis with drive cycle B or C as well. |
*P0301 | CYLINDER 1 MISFIRE DETECTED | Complete diagnosis with drive cycle B or C as well. |
*P0302 | CYLINDER 2 MISFIRE DETECTED | Complete diagnosis with drive cycle B or C as well. |
*P0303 | CYLINDER 3 MISFIRE DETECTED | Complete diagnosis with drive cycle B or C as well. |
*P0304 | CYLINDER 4 MISFIRE DETECTED | Complete diagnosis with drive cycle B or C as well. |
*P0459 | EVAP SYSTEM (CPC) PURGE CONTROL VALVE "A" CIRCUIT HIGH | — |
*P2096 | POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1 | Complete diagnosis with drive cycle B or C as well. |
*P2097 | POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 1 | Complete diagnosis with drive cycle B or C as well. |
P2195 | A/F /O2 SENSOR SIGNAL BIASED/STUCK LEAN BANK 1 SENSOR 1 | — |
P2196 | A/F /O2 SENSOR SIGNAL BIASED/STUCK RICH BANK 1 SENSOR 1 | — |
Diagnostic procedure:
1. Drive for 20 minutes or more at a constant speed of 80 km/h (50 MPH) or more.
2. Stop the vehicle and idle for one minute.
3. DRIVE CYCLE B
DTC | Item | Condition |
*P0125 | INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL | «Coolant Temp.» at engine start: Less than −15°C (5°F) |
P0137 | O2 SENSOR CIRCUIT LOW VOLTAGE BANK 1 SENSOR 2 | — |
P0138 | O2 SENSOR CIRCUIT HIGH VOLTAGE BANK 1 SENSOR 2 | — |
*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. |
P0500 | VEHICLE SPEED SENSOR "A" CIRCUIT | — |
*P0506 | IDLE CONTROL SYSTEM RPM - LOWER THAN EXPECTED | — |
*P0507 | IDLE CONTROL SYSTEM RPM - HIGHER THAN EXPECTED | — |
P0700 | TRANSMISSION CONTROL SYSTEM (MIL REQUEST) | — |
*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. |
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 |
*P000A | "A" CAMSHAFT POSITION SLOW RESPONSE BANK 1 | — |
*P000B | "B" CAMSHAFT POSITION SLOW RESPONSE BANK 1 | — |
*P000C | "A" CAMSHAFT POSITION SLOW RESPONSE BANK 2 | — |
*P000D | "B" CAMSHAFT POSITION SLOW RESPONSE BANK 2 | — |
P0011 | "A" CAMSHAFT POSITION - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE BANK 1 | — |
P0014 | "B" CAMSHAFT POSITION - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE BANK 1 | — |
P0021 | "A" CAMSHAFT POSITION - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE BANK 2 | — |
P0024 | "B" CAMSHAFT POSITION - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE BANK 2 | — |
*P0030 | A/F / O2 HEATER CONTROL CIRCUIT BANK 1 SENSOR 1 | — |
*P0068 | MAP/MAF - THROTTLE POSITION CORRELATION | — |
*P0101 | MASS OR VOLUME AIR FLOW SENSOR "A" CIRCUIT RANGE/PERFORMANCE | — |
P0134 | A/F / 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. |
*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. |
*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. |
*P0400 | EGR "A" FLOW | — |
*P0420 | CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD BANK 1 | — |
P0851 | PARK/NEUTRAL SWITCH INPUT CIRCUIT LOW | — |
P0852 | PARK/NEUTRAL SWITCH INPUT CIRCUIT HIGH | — |
*P1449 | EVAP SYSTEM CLOG DETECTED (AIR FILTER) | — |
P1492 | COIL 1 EGR "A" CONTROL CIRCUIT LOW | — |
P1493 | COIL 1 EGR "A" CONTROL CIRCUIT HIGH | — |
P1494 | COIL 2 EGR "A" CONTROL CIRCUIT LOW | — |
P1495 | COIL 2 EGR "A" CONTROL CIRCUIT HIGH | — |
P1496 | COIL 3 EGR "A" CONTROL CIRCUIT LOW | — |
P1497 | COIL 3 EGR "A" CONTROL CIRCUIT HIGH | — |
P1498 | COIL 4 EGR "A" CONTROL CIRCUIT LOW | — |
P1499 | COIL 4 EGR "A" CONTROL CIRCUIT HIGH | — |
P2004 | TGV CONTROL STUCK OPEN BANK 1 | — |
P2005 | TGV 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. |
P2270 | O2 SENSOR SIGNAL BIASED/STUCK LEAN BANK 1 SENSOR 2 | — |
P2271 | O2 SENSOR SIGNAL BIASED/STUCK RICH BANK 1 SENSOR 2 | — |
Diagnostic procedure:
Drive according to the drive pattern described below.
(A) | Shift the select lever to “P” range or the gear shift lever to the neutral position, and let the engine idle for 10 seconds or more. | (D) | Decelerate with fully closed throttle to 64 km/h (40 MPH) or less. | (G) | Stop vehicle with the 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. |
NOTE:
Perform the followings for catalyst system bank 1 only.
• Check that *«Catalyst monitoring completed» indicates *«YES», and read the temporary code.
• If *«Catalyst monitoring completed» indicates «NO», the diagnosis has not been completed yet. In this case, repeat driving until it indicates «YES».
*: Using Subaru Select Monitor, refer to “Engine Current Data Display”.
5. DRIVE CYCLE F
DTC | Item | Condition |
*P0111 | INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT RANGE/PERFORMANCE BANK 1 |
• 6 hours have elapsed since ignition switch is OFF under a completely warmed up condition.
• For models with block heater, at least 6 hours must have elapsed without operating the block heater.
*P0196
ENGINE OIL TEMPERATURE SENSOR "A" RANGE/PERFORMANCE
• 6 hours have elapsed since ignition switch is OFF under a completely warmed up condition.
• For models with block heater, at least 6 hours must have elapsed without operating the block heater.
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.
(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 seconds. |
(3) | Stop the vehicle and idle for 30 seconds or more. |
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).
6. DRIVE CYCLE H
DTC | Item | Condition |
P0071 | AMBIENT AIR TEMPERATURE SENSOR CIRCUIT "A" RANGE/PERFORMANCE |
• 6 hours have elapsed since ignition switch is OFF under a completely warmed up condition.
• For models with block heater, at least 6 hours must have elapsed without operating the block heater.
P0116
ENGINE COOLANT TEMPERATURE SENSOR 1 CIRCUIT RANGE/PERFORMANCE
• 6 hours have elapsed since ignition switch is OFF under a completely warmed up condition.
• For models with block heater, at least 6 hours must have elapsed without operating the block heater.
P0451
EVAP SYSTEM (CPC) PRESSURE SENSOR/SWITCH CIRCUIT RANGE/PERFORMANCE
60 seconds have elapsed since ignition switch is OFF.
*P050A
COLD START IDLE CONTROL SYSTEM PERFORMANCE
—
*P050B
COLD START IGNITION TIMING PERFORMANCE
—
1. Perform the Clear Memory Mode. Clear Memory Mode">
2. With the ignition switch ON, read the value in «Coolant Temp.» and «Intake Air Temp.». 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.
• For CVT models, hold the select lever to “P” range or “N” range at idling, and for MT models, the gear shift lever in the neutral position at idling.
7. DRIVE CYCLE I
DTC | Item | Condition |
*P0455 | EVAP SYSTEM (CPC) LEAK DETECTED (LARGE LEAK) | «Coolant Temp.»: 5 — 45°C (41 — 113°F) «Intake Air Temp.»: 5 — 50°C (41 — 122°F) |
*P0456 | EVAP SYSTEM (CPC) LEAK DETECTED (VERY SMALL LEAK) | |
*P1451 | EVAP SYSTEM CLOG DETECTED (PIPE) | |
*P2402 | EVAP SYSTEM LEAK DETECTION PUMP CONTROL CIRCUIT HIGH | |
*P2404 | EVAP SYSTEM LEAK DETECTION PUMP SENSE CIRCUIT RANGE/PERFORMANCE | |
*P2420 | EVAP SYSTEM SWITCHING VALVE CONTROL CIRCUIT HIGH |
CAUTION:
Be careful of the state of the battery when performing the drive cycle I consecutively. Performing the drive cycle I consecutively without the engine running may cause a low battery voltage and battery discharge.
NOTE:
• If it is necessary to perform drive cycle I consecutively, drive the vehicle under the following conditions to release accumulated evaporating gas. Performing the drive cycle I consecutively without starting the engine causes a large amount of evaporating gas to accumulate in the canister, which hinders an accurate diagnosis.
• After engine is warmed up
• Drive for 10 minutes or more at a speed of 48 km/h (30 MPH) or more (duration of drive can be an accumulation)
• To obtain an accurate diagnostic result, perform the procedures according to the following points.
• Do not refuel gas immediately before performing drive cycle I. There will be a large amount of evaporating gas immediately after refuel, which may cause a less accurate diagnostic performance.
• Do not shake the vehicle while performing drive cycle I. Shaking the vehicle causes evaporating gas to increase inside the fuel tank, which may cause a less accurate diagnostic performance.
• Do not perform any service operation including installation or removal of parts or connectors while performing drive cycle I. Performing service operation could affect on the functions of related parts, which may cause a less accurate diagnostic performance.
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WARNING
Always stop the engine and apply
the parking brake firmly to prevent
the vehicle from moving.
Always let the engine cool down.
Engine parts become very hot
when the engine is running and
remain hot for some time after
the engine has stopped.
Do not spill engine oil, engine
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