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.
2020 Genesis G90 3.3T Premium, AWDFACTORY OEM SERVICE PROCEDURE
Engine Control System Diagnosis - 3.3L (5 Of 5)
- DTC Index
- DTC P2122-00: Accelerator Position Sensor 1 Signal Circuit Low Input
- DTC P2123-00: Accelerator Position Sensor 1 Signal Circuit High Input
- DTC P2127-00: Accelerator Position Sensor 2 Signal Circuit Low Input
- DTC P2128-00: Accelerator Position Sensor 2 Signal Circuit-High Input
- DTC P2138-00: Accelerator Position Sensor 1 & 2 Signal Voltage Correlation
- DTC P2148-00: Fuel Injector Group 'A' Supply Voltage Circuit High
- DTC P2151-00: Fuel Injector Group 'B' Supply Voltage Circuit High
- DTC P2154-00: Fuel Injector Group 'C' Supply Voltage Circuit High
- DTC P2159-00: Vehicle Speed Sensor 'B' Range/Performance (Wheel Speed Sensor)
- DTC P2177-00: System Too Lean Off Idle Bank 1
- DTC P2178-00: System Too Rich Off Idle Bank 1
- DTC P2179-00: System Too Lean Off Idle Bank 2
- DTC P2180-00: System Too Rich Off Idle Bank 2
- DTC P2195-00: O2 Sensor Signal Stuck Lean (Bank 1 Sensor 1)
- DTC P2196-00: O2 Sensor Signal Stuck Rich (Bank 1 Sensor 1)
- DTC P2197-00: O2 Sensor Signal Stuck Lean (Bank 2 Sensor 1)
- DTC P2198-00: O2 Sensor Signal Stuck Rich (Bank 2 Sensor 1)
- DTC P219C-00: Cylinder 1 Air-Fuel Ratio Imbalance
- DTC P219D-00: Cylinder 2 Air-Fuel Ratio Imbalance
- DTC P219E-00: Cylinder 3 Air-Fuel Ratio Imbalance
- DTC P219F-00: Cylinder 4 Air-Fuel Ratio Imbalance
- DTC P21A0-00: Cylinder 5 Air-Fuel Ratio Imbalance
- DTC P21A1-00: Cylinder 6 Air-Fuel Ratio Imbalance
- DTC P2227-00: Barometric Pressure Circuit Range/Performance
- DTC P2228-00: Barometric Pressure Circuit Low Input
- DTC P2229-00: Barometric Pressure Circuit High Input
- DTC P2237-00: O2 Sensor Pumping Current Circuit/Open (Bank 1 Sensor 1)
- DTC P2240-00: O2 Sensor Pumping Current Circuit/Open (Bank 2 Sensor 1)
- DTC P2243-00: O2 Sensor Reference Voltage Circuit/Open (Bank 1 Sensor 1)
- DTC P2247-00: O2 Sensor Reference Voltage Circuit/Open (Bank 2 Sensor 1)
- DTC P2251-00: O2 Sensor Reference Ground Circuit/Open (Bank 1 Sensor 1)
- DTC P2254-00: O2 Sensor Reference Ground Circuit/Open (Bank 2 Sensor 1)
- DTC P2261-00: Turbocharger/Supercharger Bypass Valve - Mechanical
- DTC P226C-00: Turbocharger Boost Control 'A' Slow Response
- DTC P2270-00: O2 Sensor Signal Stuck Lean (Bank 1 Sensor 2)
- DTC P2271-00: O2 Sensor Signal Stuck Rich (Bank 1 Sensor 2)
- DTC P2272-00: O2 Sensor Signal Stuck Lean (Bank 2 Sensor 2)
- DTC P2273-00: O2 Sensor Signal Stuck Rich (Bank 2 Sensor 2)
- DTC P2297-00: O2 Sensor Out Of Range During Deceleration - (Bank 1 Sensor 1)
- DTC P2298-00: O2 Sensor Out Of Range During Deceleration - (Bank 2 Sensor 1)
- DTC P2414-00: O2 Sensor Exhaust Sample Error (Bank 1 Sensor 1)
- DTC P2415-00: O2 Sensor Exhaust Sample Error (Bank 2 Sensor 1)
- DTC P2422-00: Evaporative Emission System Vent Valve Stuck Closed
- DTC P2501-00: AMS Voltage Rationality
- DTC P2502-00: AMS Charging System Voltage
- DTC P2503-00: AMS No Battery Charge
- DTC P2504-00: Charging System Voltage High
- DTC P2540-00: Low Pressure Fuel System Sensor Circuit Range/Performance
- DTC P2541-00: Low Pressure Fuel System Sensor Circuit Low
- DTC P2542-00: Low Pressure Fuel System Sensor Circuit High
- DTC P2563-00: Turbocharger Boost Control Position Sensor 'A' Circuit Range/Performance
- DTC P2564-00: Turbocharger Boost Control Position Sensor 'A' Circuit Low
- DTC P2565-00: Turbocharger Boost Control Position Sensor 'A' Circuit High
- DTC P2587-00: Turbocharger Boost Control Position Sensor 'B' Circuit Range/Performance
- DTC P2588-00: Turbocharger Boost Control Position Sensor 'B' Circuit Low
- DTC P2589-00: Turbocharger Boost Control Position Sensor 'B' Circuit High
- DTC P259E-00: Turbocharger 'A' Boost Control Position At Low Limit
- DTC P259F-00: Turbocharger 'A' Boost Control Position At High Limit
- DTC P25A0-00: Turbocharger 'B' Boost Control Position At Low Limit
- DTC P25A1-00: Turbocharger 'B' Boost Control Position At High Limit
- DTC P2610-00: ECM/PCM-Engine Off Timer Performance
- DTC P2626-00: O2 Sensor Pumping Current Trim Circuit/Open (Bank 1 Sensor 1)
- DTC P2629-00: O2 Sensor Pumping Current Trim Circuit/Open (Bank 2 Sensor 1)
- DTC U0001-00: High Speed CAN Communication Bus Off
- DTC U0101-00: Lost Communication With TCM
- DTC U0109-00: Lost Communication With Fuel Pump Control Module
- DTC U012D-00: Lost Communication With Generator Control Module
- DTC U0164-00: Lost Communication With HVAC Control Module
- DTC U04B1-00: Invalid Data Received From Battery Monitor Module
- DTC U1008-00: Lost Communication With Radiator Shutter (Active Air Flap)
- DTC U1111-00: Battery Sensor Fault Detected By ECU
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.