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 DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXPARK ASSIST / MONITORING DTCSINTUITIVE PARKING ASSIST SYSTEM
2018 Toyota Prius Two Eco
Intuitive Parking Assist System
2018 Toyota Prius Two EcoSECTION Intuitive Parking Assist System
INTUITIVE PARKING ASSIST SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [11/2015 - 12/2018]
| DTC Code | Description |
|---|---|
| C1AE0 | Front Left Side Sensor |
| C1AE1 | Front Left Sensor Malfunction |
| C1AE2 | Front Left Center Sensor |
| C1AE3 | Front Right Center Sensor |
| C1AE4 | Front Right Sensor Malfunction |
| C1AE5 | Front Right Side Sensor |
| C1AE6 | Rear Left Sensor Malfunction |
| C1AE7 | Rear Left Center Sensor Malfunction |
| C1AE8 | Rear Right Center Sensor Malfunction |
| C1AE9 | Rear Right Sensor Malfunction |
| C1AEC | Front Sensor Communication Malfunction |
| C1AED | Rear Sensor Communication Malfunction |
| C1AEE | IPA Sensor Communication Circuit |
| C1AF1 | Rear Left Side Sensor |
| C1AF2 | Rear Right Side Sensor |
| C1AF8 | Rr IPA Sensor Communication Circuit |
| U0073 | Control Module Communication Bus "A" Off |
| U0155 | Lost Communication with Instrument Panel Cluster (IPC) Control Module |
| U1000 | CAN Communication Failure (Message Registry) |
INTUITIVE PARKING ASSIST SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [12/2018 -]
| DTC Code | Description |
|---|---|
| C1AE0 | Front Left Side Sensor |
| C1AE1 | Front Left Sensor Malfunction |
| C1AE2 | Front Left Center Sensor |
| C1AE3 | Front Right Center Sensor |
| C1AE4 | Front Right Sensor Malfunction |
| C1AE5 | Front Right Side Sensor |
| C1AE6 | Rear Left Sensor Malfunction |
| C1AE7 | Rear Left Center Sensor Malfunction |
| C1AE8 | Rear Right Center Sensor Malfunction |
| C1AE9 | Rear Right Sensor Malfunction |
| C1AEC | Front Sensor Communication Malfunction |
| C1AED | Rear Sensor Communication Malfunction |
| C1AEE | IPA Sensor Communication Circuit |
| C1AF1 | Rear Left Side Sensor |
| C1AF2 | Rear Right Side Sensor |
| C1AF8 | Rr IPA Sensor Communication Circuit |
| U0073 | Control Module Communication Bus "A" Off |
| U0155 | Lost Communication with Instrument Panel Cluster (IPC) Control Module |
| U1000 | CAN Communication Failure (Message Registry) |
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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.