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.
2018 Subaru Crosstrek Base, Automatic CVT TransFACTORY OEM SERVICE PROCEDURE
Inspection Mode: Procedure: Notes
It is possible to diagnose the DTC by performing the indicated inspection mode. After correcting the DTC, perform a necessary inspection mode and make sure that the function is resumed correctly and the DTC is recorded.
| DTC | Item | Condition | Number of driving cycles on the detecting condition |
|---|---|---|---|
| B1570 | ANTENNA | - | 1 |
| B1571 | REFERENCE CODE INCOMPATIBILITY (IMMOBILIZER CONTROL MODULE TO ECM) | - | 1 |
| B1572 | IMM CIRCUIT EXCEPT ANTENNA CIRCUIT | - | 1 |
| B1574 | KEY COMMUNICATION FAILURE | - | 1 |
| B1575 | INCORRECT IMMOBILIZER KEY | - | 1 |
| B1576 | EGI CONTROL MODULE EEPROM | - | 1 |
| B1577 | IMM CONTROL MODULE EEPROM | - | 1 |
| B1578 | METER | - | 1 |
| P0010 | "A" CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT/OPEN BANK 1 | - | 1 |
| P0013 | "B" CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT/OPEN BANK 1 | - | 1 |
| P0020 | "A" CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT/OPEN BANK 2 | - | 1 |
| P0023 | "B" CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT/OPEN BANK 2 | - | 1 |
| P0031 | A/F/O2 HEATER CONTROL CIRCUIT LOW BANK 1 SENSOR 1 | - | 1 |
| P0032 | A/F/O2 HEATER CONTROL CIRCUIT HIGH BANK 1 SENSOR 1 | - | 1 |
| P0037 | A/F/O2 HEATER CONTROL CIRCUIT LOW BANK 1 SENSOR 2 | - | 2 |
| P0038 | A/F/O2 HEATER CONTROL CIRCUIT HIGH BANK 1 SENSOR 2 | - | 2 |
| P0072 | AMBIENT AIR TEMPERATURE SENSOR CIRCUIT "A" LOW | - | 1 |
| P0073 | AMBIENT AIR TEMPERATURE SENSOR CIRCUIT "A" HIGH | - | 1 |
| P0102 | MASS OR VOLUME AIR FLOW SENSOR "A" CIRCUIT LOW | - | 1 |
| P0103 | MASS OR VOLUME AIR FLOW SENSOR "A" CIRCUIT HIGH | - | 1 |
| P0107 | MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE SENSOR CIRCUIT LOW | - | 1 |
| P0108 | MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE SENSOR CIRCUIT HIGH | - | 1 |
| P0112 | INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT LOW BANK 1 | - | 1 |
| P0113 | INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT HIGH BANK 1 | - | 1 |
| P0117 | ENGINE COOLANT TEMPERATURE SENSOR 1 CIRCUIT LOW | - | 1 |
| P0118 | ENGINE COOLANT TEMPERATURE SENSOR 1 CIRCUIT HIGH | - | 1 |
| P0122 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT LOW | - | 1 |
| P0123 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGH | - | 1 |
| P0131 | A/F/O2 SENSOR CIRCUIT LOW VOLTAGE BANK 1 SENSOR 1 | - | 1 |
| P0132 | A/F/O2 SENSOR CIRCUIT HIGH VOLTAGE BANK 1 SENSOR 1 | - | 1 |
| P0191 | FUEL RAIL PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE BANK 1 | - | 2 |
| P0192 | FUEL RAIL PRESSURE SENSOR CIRCUIT LOW BANK 1 | - | 1 |
| P0193 | FUEL RAIL PRESSURE SENSOR CIRCUIT HIGH BANK 1 | - | 1 |
| P0197 | ENGINE OIL TEMPERATURE SENSOR "A" CIRCUIT LOW | - | 1 |
| P0198 | ENGINE OIL TEMPERATURE SENSOR "A" CIRCUIT HIGH | - | 1 |
| P0222 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT LOW | - | 1 |
| P0223 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT HIGH | - | 1 |
| P0327 | KNOCK/COMBUSTION VIBRATION SENSOR 1 CIRCUIT LOW BANK 1 OR SINGLE SENSOR | - | 1 |
| P0328 | KNOCK/COMBUSTION VIBRATION SENSOR 1 CIRCUIT HIGH BANK 1 OR SINGLE SENSOR | - | 1 |
| P0332 | KNOCK/COMBUSTION VIBRATION SENSOR 2 CIRCUIT LOW BANK 2 | - | 1 |
| P0333 | KNOCK/COMBUSTION VIBRATION SENSOR 2 CIRCUIT HIGH BANK 2 | - | 1 |
| P0335 | CRANKSHAFT POSITION SENSOR "A" CIRCUIT | - | 1 |
| P0336 | CRANKSHAFT POSITION SENSOR "A" CIRCUIT RANGE/PERFORMANCE | - | 2 |
| P0340 | CAMSHAFT POSITION SENSOR "A" CIRCUIT BANK 1 OR SINGLE SENSOR | - | 1 |
| P0341 | CAMSHAFT POSITION SENSOR "A" CIRCUIT RANGE/PERFORMANCE BANK 1 OR SINGLE SENSOR | - | 1 |
| P0345 | CAMSHAFT POSITION SENSOR "A" CIRCUIT BANK 2 | - | 1 |
| P0346 | CAMSHAFT POSITION SENSOR "A" CIRCUIT RANGE/PERFORMANCE BANK 2 | - | 1 |
| P0351 | IGNITION COIL "A" PRIMARY CONTROL CIRCUIT/OPEN | - | 1 |
| P0352 | IGNITION COIL "B" PRIMARY CONTROL CIRCUIT/OPEN | - | 1 |
| P0353 | IGNITION COIL "C" PRIMARY CONTROL CIRCUIT/OPEN | - | 1 |
| P0354 | IGNITION COIL "D" PRIMARY CONTROL CIRCUIT/OPEN | - | 1 |
| P0365 | CAMSHAFT POSITION SENSOR "B" CIRCUIT BANK 1 | - | 1 |
| P0366 | CAMSHAFT POSITION SENSOR "B" CIRCUIT RANGE/PERFORMANCE BANK 1 | - | 1 |
| P0390 | CAMSHAFT POSITION SENSOR "B" CIRCUIT BANK 2 | - | 1 |
| P0391 | CAMSHAFT POSITION SENSOR "B" CIRCUIT RANGE/PERFORMANCE BANK 2 | - | 1 |
| P0452 | EVAP SYSTEM (CPC) PRESSURE SENSOR/SWITCH CIRCUIT LOW | - | 1 |
| P0453 | EVAP SYSTEM (CPC) PRESSURE SENSOR/SWITCH CIRCUIT HIGH | - | 1 |
| P0458 | EVAP SYSTEM (CPC) PURGE CONTROL VALVE "A" CIRCUIT LOW | - | 2 |
| P0512 | STARTER (SWITCH) REQUEST CIRCUIT | - | 1 |
| P0560 | SYSTEM VOLTAGE | - | 1 |
| P0604 | INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERROR | - | 1 |
| P0605 | INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERROR | - | 1 |
| P0606 | CONTROL MODULE PROCESSOR | - | 1 |
| P060A | INTERNAL CONTROL MODULE MONITORING PROCESSOR PERFORMANCE | - | 1 |
| P060B | INTERNAL CONTROL MODULE A/D PROCESSING PERFORMANCE | - | 1 |
| P0616 | STARTER RELAY "A" CIRCUIT LOW | - | 1 |
| P0617 | STARTER RELAY "A" CIRCUIT HIGH | - | 1 |
| P062F | INTERNAL CONTROL MODULE EEPROM ERROR | - | 1 |
| P065A | GENERATOR/ALTERNATOR SYSTEM PERFORMANCE | - | 1 |
| P0685 | ECM/PCM POWER RELAY CONTROL CIRCUIT/OPEN | - | 2 |
| P0700 | TRANSMISSION CONTROL SYSTEM (MIL REQUEST) | - | 1 |
| P081A | STARTER DISABLE CIRCUIT LOW | - | 1 |
| P0A3B | GENERATOR/ALTERNATOR OVER TEMPERATURE | - | 1 |
| P1160 | THROTTLE RETURN SPRING | - | 1 |
| P1192 | FUEL RAIL PRESSURE SENSOR "B" CIRCUIT LOW | - | 1 |
| P1193 | FUEL RAIL PRESSURE SENSOR "B" CIRCUIT HIGH | - | 1 |
| P1235 | HIGH PRESSURE FUEL PUMP CIRCUIT | - | 1 |
| P1C00 | BATTERY MONITOR MODULE "A" PERFORMANCE | - | 1 |
| P2008 | TGV CONTROL CIRCUIT/OPEN BANK 1 | - | 1 |
| P2009 | TGV CONTROL CIRCUIT LOW BANK 1 | - | 1 |
| P2011 | TGV CONTROL CIRCUIT/OPEN BANK 2 | - | 1 |
| P2012 | TGV CONTROL CIRCUIT LOW BANK 2 | - | 1 |
| P2016 | TGV POSITION SENSOR/SWITCH CIRCUIT LOW BANK 1 | - | 1 |
| P2017 | TGV POSITION SENSOR/SWITCH CIRCUIT HIGH BANK 1 | - | 1 |
| P2021 | TGV POSITION SENSOR/SWITCH CIRCUIT LOW BANK 2 | - | 1 |
| P2022 | TGV POSITION SENSOR/SWITCH CIRCUIT HIGH BANK 2 | - | 1 |
| P2101 | THROTTLE ACTUATOR "A" CONTROL MOTOR CIRCUIT RANGE/PERFORMANCE | - | 1 |
| P2102 | THROTTLE ACTUATOR "A" CONTROL MOTOR CIRCUIT LOW | - | 1 |
| P2103 | THROTTLE ACTUATOR "A" CONTROL MOTOR CIRCUIT HIGH | - | 1 |
| P2109 | THROTTLE/PEDAL POSITION SENSOR "A" MINIMUM STOP PERFORMANCE | - | 1 |
| P2119 | THROTTLE ACTUATOR "A" CONTROL THROTTLE BODY RANGE/PERFORMANCE | - | 1 |
| P2122 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT LOW | - | 1 |
| P2123 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT HIGH | - | 1 |
| P2127 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT LOW | - | 1 |
| P2128 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT HIGH | - | 1 |
| P2135 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "A"/"B" VOLTAGE CORRELATION | - | 1 |
| P2138 | THROTTLE/PEDAL POSITION SENSOR/SWITCH "D"/"E" VOLTAGE CORRELATION | - | 1 |
| P2401 | EVAP SYSTEM LEAK DETECTION PUMP CONTROL CIRCUIT LOW | [Engine Coolant Temperature]: 5 | 1 |
| P2419 | EVAP SYSTEM SWITCHING VALVE CONTROL CIRCUIT LOW | - 45°C (41 - 113°F) [Intake Air Temperature]: 5 - 50°C (41 - 122°F) |
1 |
| P2530 | IGNITION SWITCH RUN POSITION CIRCUIT | 1 | |
| U0073 | Control Module Communication Bus Off | - | 1 |
| U0077 | LIN COMMUNICATION BUS "ECM/PCM" OFF | - | 1 |
| U0101 | LOST COMMUNICATION WITH TCM | - | 1 |
| U0122 | LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE | - | 1 |
| U0140 | LOST COMMUNICATION WITH BODY CONTROL MODULE | - | 1 |
| U0155 | LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE | - | 1 |
| U0284 | Lost Communication With Active Grille Shutter Module "A" | - | 1 |
| U0402 | INVALID DATA RECEIVED FROM TCM | - | 1 |
| U0416 | INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE | - | 1 |
| U0422 | INVALID DATA RECEIVED FROM BODY CONTROL MODULE | - | 1 |
| U0423 | INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE | - | 1 |
| U1712 | LOST LIN COMMUNICATION WITH BATTERY "1" MONITOR MODULE | - | 1 |
| U171F | LOST LIN COMMUNICATION WITH GENERATOR | - | 1 |
Factory Service Tools
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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.
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