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.
DTC C1AA0: Front Camera Module Circuit [11/2015 - 06/2017]: Procedure
2019 Toyota Prius C LSECTION Procedure
- CHECK FOR DTCS
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Chassis / PCS/LDA/RSA/LVN / Trouble Codes.
- Check for DTCs (Refer to DTC CHECK / CLEAR [11/2015 - ]
).RESULT
Result Proceed to DTC C1AA0 is output A DTC C1AA0 is not output B
Result:
B
USE SIMULATION METHOD TO CHECK
Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2015 - ] )
Result:
A
See step 2
- REPLACE PRE-COLLISION CITY SENSOR
- Replace the pre-collision city sensor (Refer to REMOVAL [11/2015 - ] ).
- Perform Pre-collision City Sensor Learning (Refer to ADJUSTMENT [11/2015 - ] ).
NEXT
END
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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.