Section 17 (Hybrid Control System - Diagnostic Codes (6 Of 6) & Circuit Tests)
WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.
- HYBRID CONTROL SYSTEM (for PHEV Model)
- DTC U019B-87: Lost Communication with Hybrid/EV Battery Charger Control Module Missing Message [12/2023 - ]
- DTC U0291-87: Lost Communication with Gear Shift Control Module "B" Missing Message [12/2023 - ]
- DTC U0424-81: HVAC Control Module to Hybrid Powertrain Control Module Invalid Serial Data Received [12/2023 - ]
- DTC U111A-87: Lost Communication with ECM/PCM "A" (ch2) Missing Message; DTC U1154-87: Lost Communication with Drive Motor Control Module "A" (ch2) Missing Message; DTC U1170-87: Lost Communication with Brake System Control Module (ch2) Missing Message [12/2023 - ]
- DTC U1157-87: Lost Communication with Drive Motor Control Module "A" (ch3) Missing Message [12/2023 - ]
- DTC U115E-87: Lost Communication with Drive Motor Control Module "B" (ch3) Missing Message [12/2023 - ]
- DTC U1176-87: Lost Communication with Gear Shift Control Module "A" (Powertrain Bus) Missing Message [12/2023 - ]
- DTC U117B-87: Lost Communication with Hybrid/EV Battery Energy Control Module "A" (ch2) Missing Message [12/2023 - ]
- DTC U11BC-87: Lost Communication with Hybrid/EV Powertrain Control Module (ch6) Missing Message [12/2023 - ]
- Brake Override System [12/2023 - ]
- Shift Paddle Switch Circuit [12/2023 - ]
- Pattern Select Switch EV Mode Circuit [12/2023 - ]
- Pattern Select Switch EV/HV Mode Circuit [12/2023 - ]
- TRAIL Switch Circuit [12/2023 - ]
- Drive Start Control [12/2023 - ]
- ECU Power Source Circuit [12/2023 - ]
- Motor Resolver Circuit [12/2023 - ]
- Motor High-voltage Circuit [12/2023 - ]
- Generator Resolver Circuit [12/2023 - ]
- Generator High-voltage Circuit [12/2023 - ]
- Rear Motor Resolver Circuit [12/2023 - ]
- Rear Motor High-voltage Circuit [12/2023 - ]
- Shut Down Signal Circuit [12/2023 - ]
- Rear Shut Down Signal Circuit [12/2023 - ]
- Inverter Low-voltage Circuit [12/2023 - ]
- Rear Inverter Low-voltage Circuit [12/2023 - ]
- HV Battery High-voltage Line Circuit [12/2023 - ]
- Cooling System [12/2023 - ]