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.
2014 Subaru BRZ PremiumFACTORY OEM SERVICE PROCEDURE
Engine Control System (Diagnostics) (4 Of 4)
- DTC P1604 Startability Malfunction
- DTC P2096 Sub FB Correction Amount 1 Lean; DTC P2097 Sub FB Correction Amount 1 Rich
- DTC P2101 ETC Motor Drive Circuit; DTC P2102 ETC motor Relay Power Supply Normally OFF; DTC P2103 ETC Motor Relay Power Supply Normally ON
- DTC P2122 Main Accelerator Pedal Position Sensor Low; DTC P2123 Main Accelerator Pedal Position Sensor High; DTC P2127 Sub-Accelerator Position Sensor Low; DTC P2128 Sub-Accelerator Position Sensor High; DTC P2138 Accelerator Pedal Position Sensor Characteristic
- DTC P2195 O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 1); DTC P2196 O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 1)
- DTC P2401 Evaporative Emission Leak Detection Pump Stuck OFF; DTC P2402 Evaporative Emission Leak Detection Pump Stuck ON; DTC P2419 Evaporate Emission System Switching Valve Control Circuit Low; DTC P2420 Evaporate Emission System Switching Valve Control Circuit High
- DTC P2610 ECM/PCM Internal Engine Off Timer Performance
- DTC U0073 Control Module Communication Bus "A" Off; DTC U0101 Lost Communication With TCM; DTC U0122 Lost Communication With Vehicle Dynamics Control Module; DTC U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module; DTC U0402 Invalid Data Received From TCM; DTC U0416 Invalid Data Received From Vehicle Dynamics Control Module; 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.