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.
2012 Lexus CT 200h BaseFACTORY OEM SERVICE PROCEDURE
Hybrid Control System
HYBRID CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| P0069-273 | Manifold Absolute Pressure - Barometric Pressure Correlation |
| P0340-886 | Camshaft Position Sensor "A" Circuit |
| P0343-747 | Camshaft Position Sensor "A" Circuit High Input |
| P0516-769 | Battery Temperature Sensor Circuit Low |
| P0517-770 | Battery Temperature Sensor Circuit High |
| P060B-134 | Internal Control Module A/D Processing Performance |
| P060B-135 | Internal Control Module A/D Processing Performance |
| P060B-570 | Internal Control Module A/D Processing Performance |
| P062F-143 | EEPROM Malfunction |
| P062F-165 | EEPROM Malfunction |
| P06A4-209 | Sensor Reference Voltage "D" Circuit Low |
| P06A5-210 | Sensor Reference Voltage "D" Circuit High |
| P082B-575 | Gear Lever X Position Circuit Low |
| P082C-576 | Gear Lever X Position Circuit High |
| P082E-571 | Gear Lever Y Position Circuit Low |
| P082F-572 | Gear Lever Y Position Circuit High |
| P0851-579 | Park / Neutral Switch Input Circuit Low |
| P0852-580 | Park / Neutral Switch Input Circuit High |
| P085D-582 | Gear Shift Control Module "A" Performance |
| P085D-599 | Gear Shift Control Module "A" Performance |
| P0861-597 | Gear Shift Control Module "A" Communication Circuit Low |
| P0862-598 | Gear Shift Control Module "A" Communication Circuit High |
| P0A01-726 | Motor Electronics Coolant Temperature Sensor Circuit Range / Performance |
| P0A02-719 | Motor Electronics Coolant Temperature Sensor Circuit Low |
| P0A03-720 | Motor Electronics Coolant Temperature Sensor Circuit High |
| P0A04-725 | Motor Electronics Coolant Temperature Sensor Circuit Intermittent |
| P0A08-264 | DC / DC Converter Status Circuit |
| P0A09-265 | DC / DC Converter Status Circuit Low Input |
| P0A09-591 | DC / DC Converter Status Circuit Low Input |
| P0A0D-350 | High Voltage System Inter-Lock Circuit High |
| P0A0D-351 | High Voltage System Inter-Lock Circuit High |
| P0A0F-204 | Engine Failed to Start |
| P0A0F-205 | Engine Failed to Start |
| P0A0F-206 | Engine Failed to Start |
| P0A0F-238 | Engine Failed to Start |
| P0A0F-524 | Engine Failed to Start |
| P0A0F-525 | Engine Failed to Start |
| P0A10-263 | DC / DC Converter Status Circuit High Input |
| P0A10-592 | DC / DC Converter Status Circuit High Input |
| P0A1A-151 | Generator Control Module |
| P0A1A-155 | Generator Control Module |
| P0A1A-156 | Generator Control Module |
| P0A1A-166 | Generator Control Module |
| P0A1A-200 | Generator Control Module |
| P0A1A-658 | Generator Control Module |
| P0A1A-659 | Generator Control Module |
| P0A1A-791 | Generator Control Module |
| P0A1A-792 | Generator Control Module |
| P0A1A-793 | Generator Control Module |
| P0A1B-163 | Drive Motor "A" Control Module |
| P0A1B-164 | Drive Motor "A" Control Module |
| P0A1B-168 | Drive Motor "A" Control Module |
| P0A1B-192 | Drive Motor "A" Control Module |
| P0A1B-193 | Drive Motor "A" Control Module |
| P0A1B-198 | Drive Motor "A" Control Module |
| P0A1B-511 | Drive Motor "A" Control Module |
| P0A1B-512 | Drive Motor "A" Control Module |
| P0A1B-661 | Drive Motor "A" Control Module |
| P0A1B-786 | Drive Motor "A" Control Module |
| P0A1B-794 | Drive Motor "A" Control Module |
| P0A1B-795 | Drive Motor "A" Control Module |
| P0A1B-796 | Drive Motor "A" Control Module |
| P0A1D-144 | Hybrid Powertrain Control Module |
| P0A1D-148 | Hybrid Powertrain Control Module |
| P0A1D-162 | Hybrid Powertrain Control Module |
| P0A1D-187 | Hybrid Powertrain Control Module |
| P0A1D-721 | Hybrid Powertrain Control Module |
| P0A1D-722 | Hybrid Powertrain Control Module |
| P0A1D-723 | Hybrid Powertrain Control Module |
| P0A1D-787 | Hybrid Powertrain Control Module |
| P0A1D-818 | Hybrid Powertrain Control Module |
| P0A1D-821 | Hybrid Powertrain Control Module |
| P0A1D-822 | Hybrid Powertrain Control Module |
| P0A1D-823 | Hybrid Powertrain Control Module |
| P0A2B-250 | Drive Motor "A" Temperature Sensor Circuit Range / Performance |
| P0A2C-247 | Drive Motor "A" Temperature Sensor Circuit Low |
| P0A2D-249 | Drive Motor "A" Temperature Sensor Circuit High |
| P0A2E-248 | Drive Motor "A" Temperature Sensor Circuit Intermittent |
| P0A37-260 | Generator Temperature Sensor Circuit Range / Performance |
| P0A38-257 | Generator Temperature Sensor Circuit Low |
| P0A39-259 | Generator Temperature Sensor Circuit High |
| P0A3A-258 | Generator Temperature Sensor Circuit Intermittent |
| P0A3F-243 | Drive Motor "A" Position Sensor Circuit |
| P0A40-500 | Drive Motor "A" Position Sensor Circuit Range / Performance |
| P0A41-245 | Drive Motor "A" Position Sensor Circuit Low |
| P0A4B-253 | Generator Position Sensor Circuit |
| P0A4C-513 | Generator Position Sensor Circuit Range / Performance |
| P0A4D-255 | Generator Position Sensor Circuit Low |
| P0A51-174 | Drive Motor "A" Current Sensor Circuit |
| P0A60-288 | Drive Motor "A" Phase V Current |
| P0A60-290 | Drive Motor "A" Phase V Current |
| P0A60-294 | Drive Motor "A" Phase V Current |
| P0A60-501 | Drive Motor "A" Phase V Current |
| P0A63-296 | Drive Motor "A" Phase W Current |
| P0A63-298 | Drive Motor "A" Phase W Current |
| P0A63-302 | Drive Motor "A" Phase W Current |
| P0A63-502 | Drive Motor "A" Phase W Current |
| P0A72-326 | Generator Phase V Current |
| P0A72-328 | Generator Phase V Current |
| P0A72-333 | Generator Phase V Current |
| P0A72-515 | Generator Phase V Current |
| P0A75-334 | Generator Phase W Current |
| P0A75-336 | Generator Phase W Current |
| P0A75-341 | Generator Phase W Current |
| P0A75-516 | Generator Phase W Current |
| P0A78-113 | Drive Motor "A" Inverter Performance |
| P0A78-121 | Drive Motor "A" Inverter Performance |
| P0A78-128 | Drive Motor "A" Inverter Performance |
| P0A78-202 | Drive Motor "A" Inverter Performance |
| P0A78-266 | Drive Motor "A" Inverter Performance |
| P0A78-267 | Drive Motor "A" Inverter Performance |
| P0A78-279 | Drive Motor "A" Inverter Performance |
| P0A78-282 | Drive Motor "A" Inverter Performance |
| P0A78-284 | Drive Motor "A" Inverter Performance |
| P0A78-286 | Drive Motor "A" Inverter Performance |
| P0A78-287 | Drive Motor "A" Inverter Performance |
| P0A78-306 | Drive Motor "A" Inverter Performance |
| P0A78-503 | Drive Motor "A" Inverter Performance |
| P0A78-504 | Drive Motor "A" Inverter Performance |
| P0A78-505 | Drive Motor "A" Inverter Performance |
| P0A78-506 | Drive Motor "A" Inverter Performance |
| P0A78-565 | Drive Motor "A" Inverter Performance |
| P0A78-586 | Drive Motor "A" Inverter Performance |
| P0A78-806 | Drive Motor "A" Inverter Performance |
| P0A78-807 | Drive Motor "A" Inverter Performance |
| P0A78-808 | Drive Motor "A" Inverter Performance |
| P0A7A-122 | Generator Inverter Performance |
| P0A7A-130 | Generator Inverter Performance |
| P0A7A-203 | Generator Inverter Performance |
| P0A7A-322 | Generator Inverter Performance |
| P0A7A-324 | Generator Inverter Performance |
| P0A7A-325 | Generator Inverter Performance |
| P0A7A-344 | Generator Inverter Performance |
| P0A7A-517 | Generator Inverter Performance |
| P0A7A-518 | Generator Inverter Performance |
| P0A7A-809 | Generator Inverter Performance |
| P0A7A-810 | Generator Inverter Performance |
| P0A7A-811 | Generator Inverter Performance |
| P0A90-251 | Drive Motor "A" Performance |
| P0A90-509 | Drive Motor "A" Performance |
| P0A92-261 | Hybrid Generator Performance |
| P0A92-521 | Hybrid Generator Performance |
| P0A93-346 | Inverter Cooling System Performance |
| P0A94-127 | DC / DC Converter Performance |
| P0A94-172 | DC / DC Converter Performance |
| P0A94-442 | DC / DC Converter Performance |
| P0A94-547 | DC / DC Converter Performance |
| P0A94-548 | DC / DC Converter Performance |
| P0A94-549 | DC / DC Converter Performance |
| P0A94-550 | DC / DC Converter Performance |
| P0A94-553 | DC / DC Converter Performance |
| P0A94-554 | DC / DC Converter Performance |
| P0A94-555 | DC / DC Converter Performance |
| P0A94-556 | DC / DC Converter Performance |
| P0A94-557 | DC / DC Converter Performance |
| P0A94-564 | DC / DC Converter Performance |
| P0A94-585 | DC / DC Converter Performance |
| P0A94-587 | DC / DC Converter Performance |
| P0A94-589 | DC / DC Converter Performance |
| P0A94-590 | DC / DC Converter Performance |
| P0AA1-231 | Hybrid Battery Positive Contactor Circuit Stuck Closed |
| P0AA1-233 | Hybrid Battery Positive Contactor Circuit Stuck Closed |
| P0AA4-232 | Hybrid Battery Negative Contactor Circuit Stuck Closed |
| P0AA6-526 | Hybrid Battery Voltage System Isolation Fault |
| P0AA6-611 | Hybrid Battery Voltage System Isolation Fault |
| P0AA6-612 | Hybrid Battery Voltage System Isolation Fault |
| P0AA6-613 | Hybrid Battery Voltage System Isolation Fault |
| P0AA6-614 | Hybrid Battery Voltage System Isolation Fault |
| P0AA7-727 | Hybrid Battery Voltage Isolation Sensor Circuit |
| P0AC0-817 | Hybrid Battery Pack Current Sensor Circuit Range / Performance |
| P0ADB-227 | Hybrid Battery Positive Contactor Control Circuit Low |
| P0ADC-226 | Hybrid Battery Positive Contactor Control Circuit High |
| P0ADF-229 | Hybrid Battery Negative Contactor Control Circuit Low |
| P0AE0-228 | Hybrid Battery Negative Contactor Control Circuit High |
| P0AE2-773 | Hybrid Battery Precharge Contactor Circuit Stuck Closed |
| P0AE6-225 | Hybrid Battery Precharge Contactor Control Circuit Low |
| P0AE7-224 | Hybrid Battery Precharge Contactor Control Circuit High |
| P0AEE-277 | Motor Inverter Temperature Sensor "A" Circuit Range / Performance |
| P0AEF-275 | Drive Motor Inverter Temperature Sensor "A" Circuit Low |
| P0AF0-274 | Drive Motor Inverter Temperature Sensor "A" Circuit High |
| P0AF1-276 | Drive Motor Inverter Temperature Sensor "A" Circuit Intermittent / Erratic |
| P0AFC-129 | Hybrid Battery Pack Sensor Module |
| P0AFC-150 | Hybrid Battery Pack Sensor Module |
| P0BCD-315 | Generator Inverter Temperature Sensor Circuit Range / Performance |
| P0BCE-313 | Generator Inverter Temperature Sensor Circuit Low |
| P0BCF-312 | Generator Inverter Temperature Sensor Circuit High |
| P0BD0-314 | Generator Inverter Temperature Sensor Circuit Intermittent / Erratic |
| P0C30-390 | Hybrid Battery Pack State of Charge High |
| P0C39-626 | DC / DC Converter Temperature Sensor "A" Range / Performance |
| P0C3A-621 | DC / DC Converter Temperature Sensor "A" Low |
| P0C3B-622 | DC / DC Converter Temperature Sensor "A" High |
| P0C3C-625 | DC / DC Converter Temperature Sensor "A" Intermittent / Erratic |
| P0C3E-628 | DC / DC Converter Temperature Sensor "B" Range / Performance |
| P0C3F-623 | DC / DC Converter Temperature Sensor "B" Low |
| P0C40-624 | DC / DC Converter Temperature Sensor "B" High |
| P0C41-627 | DC / DC Converter Temperature Sensor "B" Intermittent / Erratic |
| P0C73-776 | Motor Electronics Coolant Pump "A" Control Performance |
| P0C76-523 | Hybrid Battery System Discharge Time Too Long |
| P1606-308 | Collision Detection |
| P1606-317 | Collision Detection |
| P181A-596 | Gear Lever X Position Circuit "A" / "B" Correlation |
| P181B-595 | Gear Lever Y Position Circuit "A" / "B" Correlation |
| P182B-577 | Gear Lever X Position "B" Circuit Low |
| P182C-578 | Gear Lever X Position "B" Circuit High |
| P182E-573 | Gear Lever Y Position "B" Circuit Low |
| P182F-574 | Gear Lever Y Position "B" Circuit High |
| P2120-152 | Throttle / Pedal Position Sensor / Switch "D" Circuit |
| P2121-106 | Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance |
| P2122-104 | Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input |
| P2123-105 | Throttle / Pedal Position Sensor / Switch "D" Circuit High Input |
| P2125-153 | Throttle / Pedal Position Sensor / Switch "E" Circuit |
| P2126-109 | Throttle / Pedal Position Sensor / Switch "E" Circuit Range / Performance |
| P2127-107 | Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input |
| P2128-108 | Throttle / Pedal Position Sensor / Switch "E" Circuit High Input |
| P2138-110 | Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation |
| P2138-154 | Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation |
| P2228-268 | Barometric Pressure Sensor "A" Circuit Low |
| P2229-269 | Barometric Pressure Sensor "A" Circuit High |
| P2511-149 | ECM/PCM Power Relay Sense Circuit Intermittent |
| P2532-772 | Ignition Switch Run Position Circuit High |
| P3000-388 | HV Battery Malfunction |
| P3000-389 | HV Battery Malfunction |
| P3000-603 | HV Battery Malfunction |
| P3004-131 | Power Cable Malfunction |
| P3004-132 | Power Cable Malfunction |
| P3004-133 | Power Cable Malfunction |
| P3004-800 | Power Cable Malfunction |
| P3004-801 | Power Cable Malfunction |
| P3004-803 | Power Cable Malfunction |
| P3107-213 | Airbag ECU Communication Circuit Malfunction |
| P3107-214 | Airbag ECU Communication Circuit Malfunction |
| P3107-215 | Airbag ECU Communication Circuit Malfunction |
| P3108-536 | A/C Amplifier Communication Circuit Malfunction |
| P3110-223 | IGCT Relay Malfunction |
| P3147-239 | Transmission Malfunction |
| P3147-240 | Transmission Malfunction |
| P3147-241 | Transmission Malfunction |
| P3147-242 | Transmission Malfunction |
| P314A-828 | Inverter Coolant Pump Speed Signal |
| P3232-749 | Short to GND in Blocking of HV Gate Connection |
| P3233-750 | Open or Short to B+ in Blocking of HV Gate Connection |
| P324E-788 | MG-ECU Power Relay Intermittent Circuit |
| U0100-211 | Lost Communication with ECM / PCM "A" |
| U0100-212 | Lost Communication with ECM / PCM "A" |
| U0100-530 | Lost Communication with ECM / PCM "A" |
| U0110-159 | Lost Communication with Driver Motor Control Module |
| U0110-160 | Lost Communication with Driver Motor Control Module |
| U0110-656 | Lost Communication with Driver Motor Control Module |
| U0110-657 | Lost Communication with Driver Motor Control Module |
| U0129-220 | Lost Communication with Brake System Control Module |
| U0129-222 | Lost Communication with Brake System Control Module |
| U0129-527 | Lost Communication with Brake System Control Module |
| U0129-528 | Lost Communication with Brake System Control Module |
| U0140-146 | Lost Communication with Body Control Module |
| U0151-763 | Lost Communication with Airbag ECU |
| U0164-594 | Lost Communication with A/C ECU |
| U0164-827 | Lost Communication with A/C ECU |
| U0424-537 | Invalid Data Received from HVAC Control Module |
| U1107-436 | Lost Communication with Power Management Module |
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.