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.
2012 Nissan-Datsun Altima BaseFACTORY OEM SERVICE PROCEDURE
Brake Control System (Abs)
- Basic Inspection
- System Description
- DTC/Circuit Diagnosis
- DTC Index
- DTC C1101, C1102, C1103, C1104: Wheel Sensor-1
- DTC C1105, C1106, C1107, C1108: Wheel Sensor-2
- DTC C1109: Battery Voltage [Abnormal]
- DTC C1110: Control Failure
- DTC C1111: Pump Motor
- DTC C1114: Main Relay
- DTC C1115: Abs Sensor [Abnormal Signal]
- DTC C1120, C1122, C1124, C1126: In Abs Sol
- DTC C1121, C1123, C1125, C1127: Out Abs Sol
- DTC U1000: Can Comm Circuit
- Stop Lamp Switch
- Abs Warning Lamp
- Brake Warning Lamp
- Ecu Diagnosis Information
- Wiring Diagram
- Symptom Diagnosis
- Precaution
- Preparation
- Removal And Installation
Factory Service Tools
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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.
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