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 MANUALSTOYOTA2018PRIUS TWO ECOREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOLLISION/AVOIDANCECLEARANCE SONAR SYSTEM - DIAGNOSTIC CODES
2018 Toyota Prius Two Eco
Clearance Sonar System - Diagnostic Codes
2018 Toyota Prius Two EcoSECTION Clearance Sonar System - Diagnostic Codes
- Intelligent Clearance Sonar System
- Vehicle Control History [11/2015 - ]
- DTC C1611: ECU Malfunction [11/2015 - ]
- DTC C1625: Open or Short in Steering Angle Sensor +B [11/2015 - 12/2018]
- DTC C1625: Open or Short in Steering Angle Sensor +B [12/2018 - ]
- DTC C1626: Steering Angle Sensor Failure [11/2015 - ]
- DTC C1647: G Sensor Failure [11/2015 - ]
- DTC C164B: Communication Error From Clearance Sonar ECU to VSC [11/2015 - ]
- DTC C164D: Wheel Speed Sensor Malfunction [11/2015 - ]
- DTC C164E: Stop Switch Circuit Malfunction [11/2015 - ]
- DTC C164F: Brake Hydraulic Pressure Malfunction [11/2015 - ]
- DTC C1652: Outside Air Temperature Sensor [11/2015 - ]
- DTC C168D: Vehicle Information Unmatched [11/2015 - ]
- DTC C1A40: ENG / EHV Device [11/2015 - ]
- DTC C1A4B: Stop Light Relay Circuit [11/2015 - ]
- DTC C1A50: Brake System [11/2015 - ]
- DTC C1AEA: Steering Angle Midpoint Initial Setting Incomplete [11/2015 - ]
- DTC C1AF0: ICS Detection Area Adjustment Incomplete [11/2015 - ]
- DTC C1AF3: Fr Sensor Initialization Incomplete [11/2015 - ]
- DTC C1AF4: Rr Sensor Initialization Incomplete [11/2015 - ]
- DTC U0073: Control Module Communication Bus "A" Off; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0124: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module; DTC U0164: Lost Communication with HVAC Control Module; DTC U0293: Lost Communication With Hybrid Powertrain Control Module [11/2015 - ]
- DTC U1000: CAN Communication Failure (Message Registry) [11/2015 - ]
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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.