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 Lexus UX 200 BaseFACTORY OEM SERVICE PROCEDURE
Motor Generator Control System
MOTOR GENERATOR CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| P0335-00 | Crankshaft Position Sensor "A" |
| P0335-31 | Crankshaft Position Sensor "A" No Signal |
| P0340-00 | Camshaft Position Sensor "A" Circuit Bank 1 or Single Sensor |
| P0340-31 | Camshaft Position Sensor "A" Circuit Bank 1 or Single Sensor No Signal |
| P062F-44 | Internal Control Module EEPROM Data Memory Failure |
| P062F-46 | Generator Control Module (EEPROM Learning Value) Calibration / Parameter Memory Failure |
| P06B0-1C | Generator Control Module Position Sensor REF Power Source Circuit Voltage Out of Range |
| P06D6-1C | Generator Control Module Offset Power Circuit Voltage Out of Range |
| P0A00-11 | Motor Electronics Coolant Temperature Sensor Circuit Short to Ground |
| P0A00-15 | Motor Electronics Coolant Temperature Sensor Circuit Short to Battery or Open |
| P0A00-1C | Motor Electronics Coolant Temperature Sensor Circuit Voltage Out of Range |
| P0A08-12 | DC/DC Converter Status Circuit Short to Battery |
| P0A08-14 | DC/DC Converter Status Circuit Short to Ground or Open |
| P0A11-12 | DC/DC Converter Enable Circuit Short to Battery |
| P0A11-14 | DC/DC Converter Enable Circuit Short to Ground or Open |
| P0A1A-47 | Generator Control Module Watchdog / Safety μC Failure |
| P0A1A-49 | Generator Control Module Internal Electronic Failure |
| P0A1B-1F | Generator Control Module Circuit Intermittent |
| P0A1C-49 | Drive Motor "B" Control Module Internal Electronic Failure |
| P0A3F-16 | Drive Motor "A" Position Sensor Circuit Voltage Below Threshold |
| P0A3F-1F | Drive Motor "A" Position Sensor Circuit Intermittent |
| P0A3F-21 | Drive Motor "A" Position Sensor Signal Amplitude < Minimum |
| P0A3F-22 | Drive Motor "A" Position Sensor Signal Amplitude > Maximum |
| P0A4B-16 | Generator Position Sensor Circuit Voltage Below Threshold |
| P0A4B-1F | Generator Position Sensor Circuit Intermittent |
| P0A4B-21 | Generator Position Sensor Signal Amplitude < Minimum |
| P0A4B-22 | Generator Position Sensor Signal Amplitude > Maximum |
| P0A60-12 | Drive Motor "A" Phase V Current (High Resolution) Circuit Short to Battery |
| P0A60-14 | Drive Motor "A" Phase V Current (High Resolution) Circuit Short to Ground or Open |
| P0A60-1C | Drive Motor "A" Phase V Current (High Resolution) Circuit Voltage Out of Range |
| P0A60-1F | Drive Motor "A" Phase V Current (High Resolution) Circuit Intermittent |
| P0A63-12 | Drive Motor "A" Phase W Current (High Resolution) Circuit Short to Battery |
| P0A63-14 | Drive Motor "A" Phase W Current (High Resolution) Circuit Short to Ground or Open |
| P0A63-1C | Drive Motor "A" Phase W Current (High Resolution) Circuit Voltage Out of Range |
| P0A63-1F | Drive Motor "A" Phase W Current (High Resolution) Circuit Intermittent |
| P0A78-72 | Drive Motor "A" Inverter Actuator Stuck Open |
| P0A78-73 | Drive Motor "A" Inverter Actuator Stuck Closed |
| P0A78-9E | Drive Motor "A" Inverter Stuck On |
| P0A7A-72 | Generator Inverter Actuator Stuck Open |
| P0A7A-73 | Generator Inverter Actuator Stuck Closed |
| P0A7A-9E | Generator Inverter Stuck On |
| P0A90-00 | Drive Motor "A" Performance |
| P0A92-00 | Hybrid Generator Performance |
| P0A94-9E | DC/DC Converter Stuck On |
| P0AED-11 | Drive Motor Inverter Temperature Sensor "A" Circuit Short to Ground |
| P0AED-15 | Drive Motor Inverter Temperature Sensor "A" Circuit Short to Battery or Open |
| P0AED-1C | Drive Motor Inverter Temperature Sensor "A" Circuit Voltage Out of Range |
| P0BE5-12 | Drive Motor "A" Phase U Current Sensor Circuit Short to Battery |
| P0BE5-14 | Drive Motor "A" Phase U Current Sensor Circuit Short to Ground or Open |
| P0BE5-1F | Drive Motor "A" Phase U Current Sensor Circuit Intermittent |
| P0BE5-28 | Drive Motor "A" Phase U Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure |
| P0BE9-12 | Drive Motor "A" Phase V Current Sensor Circuit Short to Battery |
| P0BE9-14 | Drive Motor "A" Phase V Current Sensor Circuit Short to Ground or Open |
| P0BE9-1F | Drive Motor "A" Phase V Current Sensor Circuit Intermittent |
| P0BE9-28 | Drive Motor "A" Phase V Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure |
| P0BED-12 | Drive Motor "A" Phase W Current Sensor Circuit Short to Battery |
| P0BED-14 | Drive Motor "A" Phase W Current Sensor Circuit Short to Ground or Open |
| P0BED-1F | Drive Motor "A" Phase W Current Sensor Circuit Intermittent |
| P0BED-28 | Drive Motor "A" Phase W Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure |
| P0BFD-62 | Drive Motor "A" Phase U-V-W Current Sensor Signal Compare Failure |
| P0BFF-1D | Drive Motor "A" Circuit Current Out of Range |
| P0C19-00 | Drive Motor "A" Execution Torque Performance |
| P0C38-11 | DC/DC Converter Temperature Sensor "A" Circuit Short to Ground |
| P0C38-15 | DC/DC Converter Temperature Sensor "A" Circuit Short to Battery or Open |
| P0C38-1C | DC/DC Converter Temperature Sensor "A" Circuit Voltage Out of Range |
| P0C3D-11 | DC/DC Converter Temperature Sensor "B" Circuit Short to Ground |
| P0C3D-15 | DC/DC Converter Temperature Sensor "B" Circuit Short to Battery or Open |
| P0C3D-1C | DC/DC Converter Temperature Sensor "B" Circuit Voltage Out of Range |
| P0C50-13 | Drive Motor "A" Position Sensor Circuit "A" Circuit Open |
| P0C50-16 | Drive Motor "A" Position Sensor Circuit "A" Circuit Voltage Below Threshold |
| P0C50-17 | Drive Motor "A" Position Sensor Circuit "A" Circuit Voltage Above Threshold |
| P0C50-1F | Drive Motor "A" Position Sensor Circuit "A" Circuit Intermittent |
| P0C5A-13 | Drive Motor "A" Position Sensor Circuit "B" Circuit Open |
| P0C5A-16 | Drive Motor "A" Position Sensor Circuit "B" Circuit Voltage Below Threshold |
| P0C5A-17 | Drive Motor "A" Position Sensor Circuit "B" Circuit Voltage Above Threshold |
| P0C5A-1F | Drive Motor "A" Position Sensor Circuit "B" Circuit Intermittent |
| P0C64-13 | Generator Position Sensor Circuit "A" Circuit Open |
| P0C64-16 | Generator Position Sensor Circuit "A" Circuit Voltage Below Threshold |
| P0C64-17 | Generator Position Sensor Circuit "A" Circuit Voltage Above Threshold |
| P0C64-1F | Generator Position Sensor Circuit "A" Circuit Intermittent |
| P0C69-13 | Generator Position Sensor Circuit "B" Circuit Open |
| P0C69-16 | Generator Position Sensor Circuit "B" Circuit Voltage Below Threshold |
| P0C69-17 | Generator Position Sensor Circuit "B" Circuit Voltage Above Threshold |
| P0C69-1F | Generator Position Sensor Circuit "B" Circuit Intermittent |
| P0C79-17 | Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Above Threshold |
| P0CA3-00 | DC/DC Converter Step Up Voltage Performance |
| P0D2D-16 | Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Below Threshold |
| P0D2D-17 | Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Above Threshold |
| P0D2D-1F | Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Intermittent |
| P0D33-19 | DC/DC Converter Circuit Current Above Threshold |
| P0DFA-62 | Generator Phase U-V-W Current Sensor Signal Compare Failure |
| P0E00-12 | Generator Phase U Current Sensor Circuit Short to Battery |
| P0E00-14 | Generator Phase U Current Sensor Circuit Short to Ground or Open |
| P0E00-1F | Generator Phase U Current Sensor Circuit Intermittent |
| P0E00-28 | Generator Phase U Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure |
| P0E04-12 | Generator Phase V Current Sensor Circuit Short to Battery |
| P0E04-14 | Generator Phase V Current Sensor Circuit Short to Ground or Open |
| P0E04-1F | Generator Phase V Current Sensor Circuit Intermittent |
| P0E04-28 | Generator Phase V Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure |
| P0E08-12 | Generator Phase W Current Sensor Circuit Short to Battery |
| P0E08-14 | Generator Phase W Current Sensor Circuit Short to Ground or Open |
| P0E08-1F | Generator Phase W Current Sensor Circuit Intermittent |
| P0E08-28 | Generator Phase W Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure |
| P0E31-16 | DC/DC Converter Voltage Sensor "A" (VL) Circuit Voltage Below Threshold |
| P0E31-17 | DC/DC Converter Voltage Sensor "A" (VL) Circuit Voltage Above Threshold |
| P0E31-1F | DC/DC Converter Voltage Sensor "A" (VL) Circuit Intermittent |
| P0E51-11 | DC/DC Converter Current Sensor Circuit Short to Ground |
| P0E51-15 | DC/DC Converter Current Sensor Circuit Short to Battery or Open |
| P0E51-1F | DC/DC Converter Current Sensor Circuit Intermittent |
| P0E51-28 | DC/DC Converter Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure |
| P0E51-2A | DC/DC Converter Current Sensor Signal Stuck In Range |
| P0E57-17 | DC/DC Converter Voltage Sensor "A" (VL) Circuit Voltage Above Threshold |
| P0E58-11 | DC/DC Converter Temperature Sensor 2 Circuit Short to Ground |
| P0E58-15 | DC/DC Converter Temperature Sensor 2 Circuit Short to Battery or Open |
| P0E58-1C | DC/DC Converter Temperature Sensor 2 Circuit Voltage Out of Range |
| P0E71-00 | Generator Execution Torque Performance |
| P1C2A-1C | Generator A/D Converter Circuit Circuit Voltage Out of Range |
| P1C2A-49 | Generator A/D Converter Circuit Internal Electronic Failure |
| P1C2B-1C | Drive Motor "A" Control Module A/D Converter Circuit Voltage Out of Range |
| P1C2B-49 | Drive Motor "A" Control Module A/D Converter Circuit Internal Electronic Failure |
| P1C2E-46 | Motor Generator ECU (EEPROM) Calibration / Parameter Memory Failure |
| P1C5D-19 | Drive Motor "A" Inverter Circuit Current Above Threshold |
| P1C5F-19 | Generator Inverter Circuit Current Above Threshold |
| P1C60-1F | Generator Control Module Position Sensor REF Power Source Circuit Intermittent |
| P1C62-1F | Generator Control Module Offset Power Circuit Intermittent |
| P1C64-1F | Generator Control Module Circuit Intermittent |
| P1C65-1F | Generator Control Module Circuit Intermittent |
| P1C67-1F | Drive Motor "A" Phase U-V-W Current Sensor Circuit Intermittent |
| P1C69-1F | Generator Phase U-V-W Current Sensor Circuit Intermittent |
| P1CA5-1D | Hybrid Generator Circuit Current Out of Range |
| P1CAC-49 | Generator Position Sensor Internal Electronic Failure |
| P1CAD-49 | Drive Motor "A" Position Sensor Internal Electronic Failure |
| P1CAF-38 | Generator Position Sensor REF Signal Cycle Malfunction Signal Frequency Incorrect |
| P1CB0-38 | Drive Motor "A" Position Sensor REF Signal Frequency Incorrect |
| P1CB5-9E | DC/DC Converter Voltage Sensor "A" (VL) Stuck On |
| P1CB6-9E | Drive Motor "A" Inverter Voltage Sensor (VH) Stuck On |
| P1CCC-96 | DC/DC Converter Enable Component Internal Failure |
| P1CFF-62 | Hybrid/EV Battery Current/DC/DC Converter Current Signal Compare Failure |
| P3124-1F | Lost Communication between Drive Motor "A" and HV ECU Circuit Intermittent |
| P3124-87 | Lost Communication between Drive Motor "A" and HV ECU Missing Message |
| P3133-83 | Communication Error from Generator to Drive Motor "A" Value of Signal Protection Calculation Incorrect |
| P3133-86 | Communication Error from Generator to Drive Motor "A" Signal Invalid |
| P3133-87 | Communication Error from Generator to Drive Motor "A" Missing Message |
| P3134-83 | Communication Error from Drive Motor "A" to Generator Value of Signal Protection Calculation Incorrect |
| P3134-86 | Communication Error from Drive Motor "A" to Generator Signal Invalid |
| P3134-87 | Communication Error from Drive Motor "A" to Generator Missing Message |
| P3148-1F | Lost Communication between Drive Motor "A" and "B" Circuit Intermittent |
| P3148-87 | Lost Communication between Drive Motor "A" and "B" Missing Message |
| P314F-1F | DC/DC Converter Voltage Sensor "A" (VL) Circuit Intermittent |
| P3153-1D | DC/DC Converter Current Sensor Circuit Current Out of Range |
| U0100-87 | Lost Communication With ECM/PCM "A" Missing Message |
| U0293-87 | Lost Communication With Hybrid Powertrain Control Module Missing Message |
| U1170-87 | Lost Communication With Brake System Control Module (ch2) Missing Message |
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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