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.
Lane Departure Alert System (W/ Steering Control) - Diagnostic Codes & Circuit Tests - (Except Hybrid)
2013 Toyota RAV4 LE, AWDSECTION Lane Departure Alert System (W/ Steering Control) - Diagnostic Codes & Circuit Tests - (Except Hybrid)
- LANE DEPARTURE ALERT SYSTEM (W/ Steering Control)
- Vehicle Control History [10/2015 - ]
- DTC C1AAC: Vehicle Information Unmatched [10/2015 - ]
- DTC C1AAD: Vehicle Information Initialization Incomplete [10/2015 - ]
- DTC U0100, U0101, U0123, U0126, U0129, U0131, U0142, U0155, U0235, U1104; Lost Communication with ECM / PCM "A" [10/2015 - ]
- DTC C1AAA: FCM Destination Information Uninitialized [10/2015 - ]
- DTC C1AA9: Front Camera Module Beam Axis Not Adjusted [10/2015 - ]
- DTC C1AA6: Yaw Rate Sensor Zero Point Malfunction [10/2015 - ]
- DTC C1AA4, C1AA5; Yaw Rate Sensor Circuit [10/2015 - ]
- DTC C1AA3: Vehicle Speed Sensor Circuit [10/2015 - ]
- DTC C1AA2: Vehicle Speed Tolerance Malfunction [10/2015 - ]
- DTC C1AA1: FCM Destination Information Unmatched [10/2015 - ]
- DTC C1AA0: Front Camera Module Circuit [10/2015 - ]
- DTC C1A73: Driving Support ECU Receive Data Malfunction [10/2015 - ]
- DTC C1A72: Communication Error from FCM to Driving Support ECU [10/2015 - ]
- DTC C1A71: Power Steering Control Torque [10/2015 - ]
- DTC C1A70: Power Steering Control System [10/2015 - ]
- DTC C1A50: Brake System Malfunction [10/2015 - ]
- DTC C1A48: G Sensor [10/2015 - ]
- DTC C1A47: Steering Angle Sensor [10/2015 - ]
- DTC C1A11, C1A14; Front Radar Sensor Incorrect Axial Gap [10/2015 - ]
- DTC C1A01: Driving Support ECU [10/2015 - ]
- DTC C1A10: Front Radar Sensor [10/2015 - ]
- Circuit Tests
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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.