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.
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HOMESERVICE MANUALSTOYOTA2025PRIUS PLUG-IN HYBRID XSE PREMIUMREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXDTC INDEX (3 OF 3)NETWORKING DTCSCAN COMMUNICATION SYSTEM (FOR PHEV MODEL)
2025 Toyota Prius Plug-In Hybrid XSE Premium
CAN COMMUNICATION SYSTEM (for PHEV Model)
2025 Toyota Prius Plug-In Hybrid XSE PremiumSECTION CAN COMMUNICATION SYSTEM (for PHEV Model)
CAN COMMUNICATION SYSTEM (FOR PHEV MODEL) DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [03/2023 - 01/2025]
| DTC Code | Description |
|---|---|
| B1020-04 | Central Gateway ECU System Internal Failure |
| U01BD-87 | Lost Communication with DC/DC Converter Control Module "C" Missing Message |
| U0291-00 | Lost Communication with Gear Shift Control Module "B" (System 2) Missing Message |
| U0291-87 | Lost Communication with Gear Shift Control Module "B" Missing Message |
| U111A-87 | Lost Communication with ECM/PCM "A" (ch2) Missing Message |
| U113A-87 | Lost Communication with Solar Charging Control Module Missing Message |
| U1150-00 | Lost Communication with Hybrid Powertrain Control Module (ch2) |
| U1150-87 | Lost Communication with Hybrid Powertrain Control Module (ch2) Missing Message |
| U1150-87 | Lost Communication with Hybrid Powertrain Control Module (ch2) Missing Message |
| U1151-87 | Lost Communication with Hybrid/EV Powertrain Control Module (ch3) Missing Message |
| U1153-87 | Lost Communication with Hybrid/EV Battery Charger Control Module "A" (ch2) Missing Message |
| U1154-87 | Lost Communication with Drive Motor Control Module "A" (ch2) Missing Message |
| U1159-87 | Lost Communication with Electronic Brake Booster Control Module "A" (ch3) Missing Message |
| U1170-08 | Lost Communication with Brake System Control Module (ch2) Bus Signal / Message Failure |
| U1170-87 | Lost Communication with Brake System Control Module (ch2) Missing Message |
| U1176-87 | Lost Communication with Gear Shift Control Module "A" (Powertrain Bus) Missing Message |
| U117B-87 | Lost Communication with Hybrid/EV Battery Energy Control Module "A" (ch2) Missing Message |
| U117D-87 | Lost Communication with Brake System Control Module (ch4) Missing Message |
| U11BC-87 | Lost Communication with Hybrid/EV Powertrain Control Module (ch6) Missing Message |
CAN COMMUNICATION SYSTEM (FOR PHEV MODEL) DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [01/2025 - ]
| DTC Code | Description |
|---|---|
| B1020-04 | Central Gateway ECU System Internal Failure |
| U01BD-87 | Lost Communication with DC/DC Converter Control Module "C" Missing Message |
| U0291-00 | Lost Communication with Gear Shift Control Module "B" (System 2) Missing Message |
| U0291-87 | Lost Communication with Gear Shift Control Module "B" Missing Message |
| U111A-87 | Lost Communication with ECM/PCM "A" (ch2) Missing Message |
| U113A-87 | Lost Communication with Solar Charging Control Module Missing Message |
| U1150-00 | Lost Communication with Hybrid Powertrain Control Module (ch2) |
| U1150-87 | Lost Communication with Hybrid Powertrain Control Module (ch2) Missing Message |
| U1150-87 | Lost Communication with Hybrid Powertrain Control Module (ch2) Missing Message |
| U1151-87 | Lost Communication with Hybrid/EV Powertrain Control Module (ch3) Missing Message |
| U1153-87 | Lost Communication with Hybrid/EV Battery Charger Control Module "A" (ch2) Missing Message |
| U1154-87 | Lost Communication with Drive Motor Control Module "A" (ch2) Missing Message |
| U1159-87 | Lost Communication with Electronic Brake Booster Control Module "A" (ch3) Missing Message |
| U1170-08 | Lost Communication with Brake System Control Module (ch2) Bus Signal / Message Failure |
| U1170-87 | Lost Communication with Brake System Control Module (ch2) Missing Message |
| U1176-87 | Lost Communication with Gear Shift Control Module "A" (Powertrain Bus) Missing Message |
| U117B-87 | Lost Communication with Hybrid/EV Battery Energy Control Module "A" (ch2) Missing Message |
| U117D-87 | Lost Communication with Brake System Control Module (ch4) Missing Message |
| U11BC-87 | Lost Communication with Hybrid/EV Powertrain Control Module (ch6) Missing Message |
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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.