Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2017 Subaru Crosstrek BaseFACTORY OEM SERVICE PROCEDURE
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:
- Drive for 20 minutes or more at a constant speed of 80 km/h (50 MPH) or more.
- Stop the vehicle and idle for one minute.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.