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 Lexus LS 600hFACTORY OEM SERVICE PROCEDURE
Hybrid Control System
HYBRID CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| P0338-885 | Crankshaft Position Sensor "A" Circuit High Input |
| P0343-747 | Camshaft Position Sensor "A" Circuit High Input |
| P0343-886 | Camshaft Position Sensor "A" Circuit High Input |
| P0516-769 | Battery Temperature Sensor Circuit Low |
| P0517-770 | Battery Temperature Sensor Circuit High |
| P0560-117 | System Voltage |
| P0617-142 | Starter Relay Circuit High |
| P062F-143 | EEPROM Malfunction |
| P062F-165 | EEPROM Malfunction |
| P0705-757 | Transmission Range Sensor Circuit |
| P0705-758 | Transmission Range Sensor Circuit |
| P0711-883 | Transmission Fluid Temperature Sensor Circuit Range / Performance |
| P0712-856 | Transmission Fluid Temperature Sensor "A" Circuit Low Input |
| P0713-857 | Transmission Fluid Temperature Sensor "A" Circuit High Input |
| P0722-854 | Output Speed Sensor Circuit No Signal |
| P0731-871 | Gear 1 Incorrect Ratio |
| P0731-873 | Gear 1 Incorrect Ratio |
| P0732-867 | Gear 2 Incorrect Ratio |
| P0732-868 | Gear 2 Incorrect Ratio |
| P0732-869 | Gear 2 Incorrect Ratio |
| P0748-850 | Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1) |
| P0778-851 | Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2) |
| P0851-775 | Park / Neutral Switch Input Circuit Low |
| P0867-876 | Transmission Fluid Pressure |
| P0867-878 | Transmission Fluid Pressure |
| P0867-880 | Transmission Fluid Pressure |
| P0867-882 | Transmission Fluid Pressure |
| P0868-866 | Transmission Fluid Pressure Low |
| P0868-894 | Transmission Fluid Pressure Low |
| P0873-875 | Transmission Fluid Pressure Sensor / Switch "C" Circuit High |
| P0878-877 | Transmission Fluid Pressure Sensor / Switch "D" Circuit High |
| P0989-899 | Transmission Fluid Pressure Sensor / Switch "E" Circuit Low |
| P0990-897 | Transmission Fluid Pressure Sensor / Switch "E" Circuit High |
| P0A01-725 | Motor Electronics Coolant Temperature Sensor Circuit Range / Performance |
| 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 |
| P0A08-101 | DC / DC Converter Status Circuit |
| 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-201 | 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-788 | 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-103 | Hybrid Powertrain Control Module |
| P0A1D-134 | Hybrid Powertrain Control Module |
| P0A1D-135 | Hybrid Powertrain Control Module |
| P0A1D-144 | Hybrid Powertrain Control Module |
| P0A1D-145 | Hybrid Powertrain Control Module |
| P0A1D-148 | Hybrid Powertrain Control Module |
| P0A1D-162 | Hybrid Powertrain Control Module |
| P0A1D-179 | Hybrid Powertrain Control Module |
| P0A1D-187 | Hybrid Powertrain Control Module |
| P0A1D-570 | Hybrid Powertrain Control Module |
| P0A1D-721 | Hybrid Powertrain Control Module |
| P0A1D-722 | Hybrid Powertrain Control Module |
| P0A1D-723 | Hybrid Powertrain Control Module |
| P0A1D-765 | Hybrid Powertrain Control Module |
| P0A1D-787 | Hybrid Powertrain Control Module |
| P0A1D-821 | Hybrid Powertrain Control Module |
| P0A1D-822 | Hybrid Powertrain Control Module |
| P0A1D-823 | Hybrid Powertrain Control Module |
| P0A2B-248 | Drive Motor "A" Temperature Sensor Circuit Range / Performance |
| 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 |
| P0A37-258 | Generator Temperature Sensor Circuit Range / Performance |
| P0A37-260 | Generator Temperature Sensor Circuit Range / Performance |
| P0A38-257 | Generator Temperature Sensor Circuit Low |
| P0A39-259 | Generator Temperature Sensor Circuit High |
| 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 |
| P0A78-266 | 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 |
| P0A78-586 | 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-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 |
| P0A94-585 | 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 |
| P0AE2-161 | Hybrid Battery Precharge Contactor Circuit Stuck Closed |
| 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-276 | Motor Inverter Temperature Sensor "A" Circuit Range / Performance |
| 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 |
| P0AF8-816 | Hybrid Battery System Voltage |
| P0AFC-129 | Hybrid Battery Pack Sensor Module |
| P0AFC-150 | Hybrid Battery Pack Sensor Module |
| P0C29-865 | Auxiliary Transmission Fluid Pump Driver Circuit Performance |
| P0C2C-888 | Auxiliary Transmission Fluid Pump Control Module Feedback Signal Range / Performance |
| P0C2C-889 | Auxiliary Transmission Fluid Pump Control Module Feedback Signal Range / Performance |
| P0C2D-858 | Auxiliary Transmission Fluid Pump Control Module Feedback Signal Low |
| P0C2E-859 | Auxiliary Transmission Fluid Pump Control Module Feedback Signal High |
| P0C30-390 | Hybrid Battery Pack State of Charge High |
| P0C76-523 | Hybrid Battery System Discharge Time Too Long |
| P1507-207 | PTC A/C Auxiliary Heater Disabled Low |
| P1508-208 | PTC A/C Auxiliary Heater Disabled High |
| P1555-181 | Reactor Temperature Sensor Circuit Low |
| P1556-182 | Reactor Temperature Sensor Circuit High |
| P1557-887 | DC / DC Converter Temperature Sensor Circuit |
| P1606-308 | Collision Detection |
| P1606-317 | Collision Detection |
| 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 |
| P2511-149 | ECM/PCM Power Relay Sense Circuit Intermittent |
| P2519-766 | A/C Request "A" Circuit |
| P2532-772 | Ignition Switch Run Position Circuit High |
| P2720-852 | Pressure Control Solenoid Circuit Low Voltage |
| P2721-853 | Pressure Control Solenoid Circuit High Voltage |
| P2797-881 | Auxiliary Transmission Fluid Pump Control Performance |
| 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 |
| P3086-184 | Short Circuit in DC / DC Converter EMPS |
| P3087-183 | Open Circuit in DC / DC Converter EMPS |
| P3107-213 | Airbag ECU Communication Circuit Malfunction |
| P3107-214 | Airbag ECU Communication Circuit Malfunction |
| P3107-215 | Airbag ECU Communication Circuit Malfunction |
| P3108-535 | Lost Communication with A/C System Control Module |
| P3108-536 | A/C Amplifier Communication Circuit Malfunction |
| P3108-538 | Lost Communication with A/C System Control Module |
| P3110-139 | HV Main Relay |
| P3110-223 | IGCT Relay Malfunction |
| P3147-239 | Transmission Malfunction |
| P3147-240 | Transmission Malfunction |
| P3147-241 | Transmission Malfunction |
| P3147-242 | Transmission Malfunction |
| P3175-862 | Transmission Oil Pump Motor Coil Temperature Sensor Circuit |
| P3176-863 | Transmission Oil Pump Motor Coil Temperature Sensor Circuit Low |
| P3177-864 | Transmission Oil Pump Motor Coil Temperature Sensor Circuit High |
| P3221-314 | Generator Inverter Temperature Sensor Circuit Range / Performance |
| P3221-315 | Generator Inverter Temperature Sensor Circuit Range / Performance |
| P3222-313 | Generator Inverter Temperature Sensor Circuit High / Low |
| P3223-312 | Generator Inverter Temperature Sensor Circuit High |
| P3226-562 | DC/DC Boost Converter Temperature Sensor |
| P3226-563 | DC/DC Boost Converter Temperature Sensor |
| P3227-583 | Converter Temperature Sensor Circuit Low |
| P3228-584 | Converter Temperature Sensor Circuit High |
| P3232-749 | Short to GND in Blocking of HV Gate Connection |
| P3233-750 | Open or Short to B+ in Blocking of HV Gate Connection |
| P3240-443 | DC / DC Converter Control Circuit |
| P3245-203 | Short in Inverter Circuit |
| P3246-202 | Short in Drive Motor "A" Inverter Circuit |
| U0100-211 | 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 |
| U0131-433 | Lost Communication with Power Steering Control Module |
| U0131-434 | Lost Communication with Power Steering 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 |
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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