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.
2016 Subaru WRX STI Series.HyperBlueFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code (DTC) Detecting Criteria
- List of Diagnostic Trouble Code (DTC)
- Diagnostic Trouble Code (DTC) Detecting Criteria
- DTC B1570 Antenna
- DTC B1571 Reference Code Incompatibility
- DTC B1572 IMM Circuit Except Antenna Circuit
- DTC B1574 Key Communication
- DTC B1575 Incorrect Immobilizer Key
- DTC B1576 EGI Control Module EEPROM
- DTC B1577 IMM Control Module EEPROM
- DTC B1578 Meter
- DTC P000A "A" Camshaft Position Slow Response Bank 1
- DTC P000B "B" Camshaft Position Slow Response Bank 1
- DTC P000C "A" Camshaft Position Slow Response Bank 2
- DTC P000D "B" Camshaft Position Slow Response Bank 2
- DTC P0011 "A" Camshaft Position - Timing Over-Advanced Or System Performance Bank 1
- DTC P0014 "B" Camshaft Position - Timing Over-Advanced Or System Performance Bank 1
- DTC P0016 Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A
- DTC P0017 Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor B
- DTC P0018 Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor A
- DTC P0019 Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor B
- DTC P0021 "A" Camshaft Position - Timing Over-Advanced Or System Performance Bank 2
- DTC P0024 "B" Camshaft Position - Timing Over-Advanced Or System Performance Bank 2
- DTC P0030 A/F/O2 Heater Control Circuit Bank 1 Sensor 1
- DTC P0031 A/F/O2 Heater Control Circuit Low Bank 1 Sensor 1
- DTC P0032 A/F/O2 Heater Control Circuit High Bank 1 Sensor 1
- DTC P0037 A/F/O2 Heater Control Circuit Low Bank 1 Sensor 2
- DTC P0038 A/F/O2 Heater Control Circuit High Bank 1 Sensor 2
- DTC P0068 Map/MAF - Throttle Position Correlation
- DTC P0071 Ambient Air Temperature Sensor Circuit "A" Range/Performance
- DTC P0072 Ambient Air Temperature Sensor Circuit "A" Low
- DTC P0073 Ambient Air Temperature Sensor Circuit "A" High
- DTC P0101 Mass Or Volume Air Flow Sensor "A" Circuit Range/Performance
- DTC P0102 Mass Or Volume Air Flow Sensor "A" Circuit Low
- DTC P0103 Mass Or Volume Air Flow Sensor "A" Circuit High
- DTC P0107 Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Low
- DTC P0108 Manifold Absolute Pressure/Barometric Pressure Sensor Circuit High
- DTC P0111 Intake Air Temperature Sensor 1 Circuit Range/Performance Bank 1
- DTC P0112 Intake Air Temperature Sensor 1 Circuit Low Bank 1
- DTC P0113 Intake Air Temperature Sensor 1 Circuit High Bank 1
- DTC P0116 Engine Coolant Temperature Sensor 1 Circuit Range/Performance
- DTC P0117 Engine Coolant Temperature Sensor 1 Circuit Low
- DTC P0118 Engine Coolant Temperature Sensor 1 Circuit High
- DTC P0122 Throttle/Pedal Position Sensor/Switch "A" Circuit Low
- DTC P0123 Throttle/Pedal Position Sensor/Switch "A" Circuit High
- DTC P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control
- DTC P0128 Coolant Thermostat (Engine Coolant Temperature Below Thermostat Regulating Temperature)
- DTC P0131 A/F/O2 Sensor Circuit Low Voltage Bank 1 Sensor 1
- DTC P0132 A/F/O2 Sensor Circuit High Voltage Bank 1 Sensor 1
- DTC P0134 A/F/O2 Sensor Circuit No Activity Detected Bank 1 Sensor 1
- DTC P0137 O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
- DTC P0138 O2 Sensor Circuit High Voltage Bank 1 Sensor 2
- DTC P013A O2 Sensor Slow Response - Rich To Lean Bank 1 Sensor 2
- DTC P013B O2 Sensor Slow Response - Lean To Rich Bank 1 Sensor 2
- DTC P013E O2 Sensor Delayed Response - Rich To Lean Bank 1 Sensor 2
- DTC P013F O2 Sensor Delayed Response - Lean To Rich Bank 1 Sensor 2
- DTC P0141 O2 Sensor Heater Circuit Bank 1 Sensor 2
- DTC P014C A/F/O2 Sensor Slow Response - Rich To Lean Bank 1 Sensor 1
- DTC P014D A/F/O2 Sensor Slow Response - Lean To Rich Bank 1 Sensor 1
- DTC P015A A/F/O2 Sensor Delayed Response - Rich To Lean Bank 1 Sensor 1
- DTC P015B A/F/O2 Sensor Delayed Response - Lean To Rich Bank 1 Sensor 1
- DTC P0171 System Too Lean Bank 1
- DTC P0172 System Too Rich Bank 1
- DTC P0201 Cylinder 1 Injector "A" Circuit
- DTC P0202 Cylinder 2 Injector "A" Circuit
- DTC P0203 Cylinder 3 Injector "A" Circuit
- DTC P0204 Cylinder 4 Injector "A" Circuit
- DTC P0222 Throttle/Pedal Position Sensor/Switch "B" Circuit Low
- DTC P0223 Throttle/Pedal Position Sensor/Switch "B" Circuit High
- DTC P0230 Fuel Pump Primary Circuit
- DTC P0244 Turbocharger/Supercharger WASTEGATE Solenoid "A" Range/Performance
- DTC P0245 Turbocharger/Supercharger WASTEGATE Solenoid "A" Low
- DTC P0246 Turbocharger/Supercharger WASTEGATE Solenoid "A" High
- DTC P0300 Random/Multiple Cylinder Misfire Detected
- DTC P0301 Cylinder 1 Misfire Detected
- DTC P0302 Cylinder 2 Misfire Detected
- DTC P0303 Cylinder 3 Misfire Detected
- DTC P0304 Cylinder 4 Misfire Detected
- DTC P0327 Knock/Combustion Vibration Sensor 1 Circuit Low Bank 1 Or Single Sensor
- DTC P0328 Knock/Combustion Vibration Sensor 1 Circuit High Bank 1 Or Single Sensor
- DTC P0335 Crankshaft Position Sensor "A" Circuit
- DTC P0336 Crankshaft Position Sensor "A" Circuit Range/Performance
- DTC P0340 Camshaft Position Sensor "A" Circuit Bank 1 Or Single Sensor
- DTC P0341 Camshaft Position Sensor "A" Circuit Range/Performance Bank 1 Or Single Sensor
- DTC P0345 Camshaft Position Sensor "A" Circuit Bank 2
- DTC P0346 Camshaft Position Sensor "A" Circuit Range/Performance Bank 2
- DTC P0351 Ignition Coil "A" Primary Control Circuit/Open
- DTC P0352 Ignition Coil "B" Primary Control Circuit/Open
- DTC P0353 Ignition Coil "C" Primary Control Circuit/Open
- DTC P0354 Ignition Coil "D" Primary Control Circuit/Open
- DTC P0365 Camshaft Position Sensor "B" Circuit Bank 1
- DTC P0366 Camshaft Position Sensor "B" Circuit Range/Performance Bank 1
- DTC P0390 Camshaft Position Sensor "B" Circuit Bank 2
- DTC P0391 Camshaft Position Sensor "B" Circuit Range/Performance Bank 2
- DTC P0410 Secondary Air System
- DTC P0411 Secondary Air System Incorrect Flow Detected
- DTC P0413 Secondary Air System Switching Valve "A" Circuit Open
- DTC P0414 Secondary Air System Switching Valve "A" Circuit Shorted
- DTC P0416 Secondary Air System Switching Valve "B" Circuit Open
- DTC P0417 Secondary Air System Switching Valve "B" Circuit Shorted
- DTC P0420 Catalyst System Efficiency Below Threshold Bank 1
- DTC P0441 EVAP System (CPC) Incorrect Purge Flow
- DTC P0451 EVAP System (CPC) Pressure Sensor/Switch Circuit Range/Performance
- DTC P0452 EVAP System (CPC) Pressure Sensor/Switch Circuit Low
- DTC P0453 EVAP System (CPC) Pressure Sensor/Switch Circuit High
- DTC P0455 EVAP System (CPC) Leak Detected (Large Leak)
- DTC P0456 EVAP System (CPC) Leak Detected (Very Small Leak)
- DTC P0458 EVAP System (CPC) Purge Control Valve "A" Circuit Low
- DTC P0459 EVAP System (CPC) Purge Control Valve "A" Circuit High
- DTC P0461 Fuel Level Sensor "A" Circuit Range/Performance
- DTC P0462 Fuel Level Sensor "A" Circuit Low
- DTC P0463 Fuel Level Sensor "A" Circuit High
- DTC P04AC EVAP System (CPC) Purge Control Valve "B" Circuit Low
- DTC P04AD EVAP System (CPC) Purge Control Valve "B" Circuit High
- DTC P04DB Crankcase Ventilation System (PCV) Disconnected
- DTC P04F0 EVAP System High Pressure Purge Line (CPC2) Performance
- DTC P0500 Vehicle Speed Sensor "A" Circuit
- DTC P0506 Idle Control System Rpm - Lower Than Expected
- DTC P0507 Idle Control System Rpm - Higher Than Expected
- DTC P050A Cold Start Idle Control System Performance
- DTC P050B Cold Start Ignition Timing Performance
- DTC P0512 Starter (Switch) Request Circuit
- DTC P0560 System Voltage
- DTC P0604 Internal Control Module Random Access Memory (Ram) Error
- DTC P0605 Internal Control Module Read Only Memory (ROM) Error
- DTC P0606 Control Module Processor
- DTC P060A Internal Control Module Monitoring Processor Performance
- DTC P060B Internal Control Module A/D Processing Performance
- DTC P0616 Starter Relay "A" Circuit Low
- DTC P0617 Starter Relay "A" Circuit High
- DTC P062F Internal Control Module EEPROM Error
- DTC P0685 ECM/Pcm Power Relay Control Circuit/Open
- DTC P081A Starter Disable Circuit Low
- DTC P0851 Park/Neutral Switch Input Circuit Low
- DTC P0852 Park/Neutral Switch Input Circuit High
- DTC P1160 Throttle Return Spring
- DTC P1410 Secondary Air Injection System Combination Valve Stuck Open
- DTC P1449 EVAP System Clog Detected (Air Filter)
- DTC P1451 EVAP System Clog Detected (Pipe)
- DTC P2004 TGV Control Stuck Open Bank 1
- DTC P2005 TGV Control Stuck Open Bank 2
- DTC P2006 TGV Control Stuck Closed Bank 1
- DTC P2007 TGV Control Stuck Closed Bank 2
- DTC P2008 TGV Control Circuit/Open Bank 1
- DTC P2009 TGV Control Circuit Low Bank 1
- DTC P2011 TGV Control Circuit/Open Bank 2
- DTC P2012 TGV Control Circuit Low Bank 2
- DTC P2016 TGV Position Sensor/Switch Circuit Low Bank 1
- DTC P2017 TGV Position Sensor/Switch Circuit High Bank 1
- DTC P2021 TGV Position Sensor/Switch Circuit Low Bank 2
- DTC P2022 TGV Position Sensor/Switch Circuit High Bank 2
- DTC P2088 "A" Camshaft Position Actuator Control Circuit Low Bank 1
- DTC P2089 "A" Camshaft Position Actuator Control Circuit High Bank 1
- DTC P2090 "B" Camshaft Position Actuator Control Circuit Low Bank 1
- DTC P2091 "B" Camshaft Position Actuator Control Circuit High Bank 1
- DTC P2092 "A" Camshaft Position Actuator Control Circuit Low Bank 2
- DTC P2093 "A" Camshaft Position Actuator Control Circuit High Bank 2
- DTC P2094 "B" Camshaft Position Actuator Control Circuit Low Bank 2
- DTC P2095 "B" Camshaft Position Actuator Control Circuit High Bank 2
- DTC P2096 Post Catalyst Fuel Trim System Too Lean Bank 1
- DTC P2097 Post Catalyst Fuel Trim System Too Rich Bank 1
- DTC P2101 Throttle Actuator "A" Control Motor Circuit Range/Performance
- DTC P2102 Throttle Actuator "A" Control Motor Circuit Low
- DTC P2103 Throttle Actuator "A" Control Motor Circuit High
- DTC P2109 Throttle/Pedal Position Sensor "A" Minimum Stop Performance
- DTC P2119 Throttle Actuator "A" Control Throttle Body Range/Performance
- DTC P2122 Throttle/Pedal Position Sensor/Switch "D" Circuit Low
- DTC P2123 Throttle/Pedal Position Sensor/Switch "D" Circuit High
- DTC P2127 Throttle/Pedal Position Sensor/Switch "E" Circuit Low
- DTC P2128 Throttle/Pedal Position Sensor/Switch "E" Circuit High
- DTC P2135 Throttle/Pedal Position Sensor/Switch "A"/"B" Voltage Correlation
- DTC P2138 Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation
- DTC P2195 A/F/O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1
- DTC P2196 A/F/O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1
- DTC P219A Bank 1 Air-Fuel Ratio Imbalance
- DTC P2257 Secondary Air System Control "A" Circuit Low
- DTC P2258 Secondary Air System Control "A" Circuit High
- DTC P2270 O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2
- DTC P2271 O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 2
- DTC P2401 EVAP System Leak Detection Pump Control Circuit Low
- DTC P2402 EVAP System Leak Detection Pump Control Circuit High
- DTC P2404 EVAP System Leak Detection Pump Sense Circuit Range/Performance
- DTC P2419 EVAP System Switching Valve Control Circuit Low
- DTC P2420 EVAP System Switching Valve Control Circuit High
- DTC P2431 Secondary Air System Air Flow/Pressure Sensor Circuit Range/Performance Bank 1
- DTC P2432 Secondary Air System Air Flow/Pressure Sensor Circuit Low Bank 1
- DTC P2433 Secondary Air System Air Flow/Pressure Sensor Circuit High Bank 1
- DTC P2440 Secondary Air System Switching Valve Stuck Open Bank 1
- DTC P2441 Secondary Air System Switching Valve Stuck Closed Bank 1
- DTC P2442 Secondary Air System Switching Valve Stuck Open Bank 2
- DTC P2443 Secondary Air System Switching Valve Stuck Closed Bank 2
- DTC P2444 Secondary Air System Pump Stuck On Bank 1
- DTC P2530 Ignition Switch Run Position Circuit
- DTC P2610 ECM/Pcm Engine Off Timer Performance
- DTC U0073 Can Failure, Bus OFF' Detection
- DTC U0122 Can (VDC) Data Not Loaded
- DTC U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module
- DTC U0416 Can (VDC) Data Abnormal
- DTC U0423 Invalid Data Received From Instrument Panel Cluster Control Module
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.