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 Honda Fit Base, Automatic TransFACTORY OEM SERVICE PROCEDURE
Abs (Anti-Lock Brake System)
- Component Location Index
- General Troubleshooting Information
- DTC Troubleshooting Index
- Symptom Troubleshooting Index
- System Description
- Circuit Diagram
- DTC Troubleshooting
- DTC 11-13, 13-13, 15-13, 17-13: Right-Front Wheel Speed Sensor Circuit Malfunction; Left-Front Wheel Speed Sensor Circuit Malfunction; Right-Rear Wheel Speed Sensor Circuit Malfunction; Left-Rear Wheel Speed Sensor Circuit Malfunction
- DTC 12-11, 14-11, 16-11, 18-11: Right-Front Wheel Speed Sensor Electrical Noise or Intermittent Interruption; Left-Front Wheel Speed Sensor Electrical Noise or Intermittent Interruption; Right-Rear Wheel Speed Sensor Electrical Noise or Intermittent Interruption; Left-Rear Wheel Speed Sensor Electrical Noise or Intermittent Interruption
- DTC 12-12, 14-12, 16-12, 18-12: Right-front Wheel Speed Sensor Short to the Other Sensor Circuit; Left-Front Wheel Speed Sensor Short to the Other Sensor Circuit; Right-Rear Wheel Speed Sensor Short to the Other Sensor Circuit; Left-Rear Wheel Speed Sensor Short to the Other Sensor Circuit
- DTC 12-21, 14-21, 16-21, 18-21: Right-Front Wheel Speed Sensor Installation Error; Left-Front Wheel Speed Sensor Installation Error; Right-Rear Wheel Speed Sensor Installation Error; Left-Rear Wheel Speed Sensor Installation Error
- DTC 12-22, 14-22, 16-22, 18-22: Right-Front Wheel Speed Sensor Installation Error (19 mph (30 km/h) or More); Left-Front Wheel Speed Sensor Installation Error (19 mph (30 km/h) or More); Right-Rear Wheel Speed Sensor Installation Error (19 mph (30 km/h) or More); Left-Rear Wheel Speed Sensor Installation Error (19 mph (30 km/h) or More)
- DTC 12-23, 14-23, 16-23, 18-23: Right-Front Wheel Speed Sensor Installation Error (0 to 9 mph (0 to 15 km/h)); Left-Front Wheel Speed Sensor Installation Error (0 to 9 mph (0 to 15 km/h)); Right-Rear Wheel Speed Sensor Installation Error (0 to 9 mph (0 to 15 km/h)); Left-Rear Wheel Speed Sensor Installation Error (0 to 9 mph (0 to 15 km/h))
- DTC 21-11, 22-11, 23-11, 24-11: Right-Front Magnetic Encoder (Wheel Bearing) Malfunction (Pulse Missing); Left-Front Magnetic Encoder (Wheel Bearing) Malfunction (Pulse Missing); Right-Rear Magnetic Encoder (Wheel Bearing) Malfunction (Pulse Missing); Left-Rear Magnetic Encoder (Wheel Bearing) Malfunction (Pulse Missing)
- DTC 31-xx*, 32-xx*, 33-xx*, 34-xx*, 35-xx*, 36-xx*, 37-xx*, 38-xx*: ABS Right-Front Inlet Solenoid Valve Malfunction; ABS Right-Front Outlet Solenoid Valve Malfunction; ABS Left-Front Inlet Solenoid Valve Malfunction; ABS Left-Front Outlet Solenoid Valve Malfunction; ABS Right-Rear Inlet Solenoid Valve Malfunction; ABS Right-Rear Outlet Solenoid Valve Malfunction; ABS Left-Rear Inlet Solenoid Valve Malfunction; ABS Left-Rear Outlet Solenoid Valve Malfunction
- DTC 41-21, 42-21, 43-21, 44-21: Right-Front Wheel Lock; Left-Front Wheel Lock; Right-Rear Wheel Lock; Left-Rear Wheel Lock
- DTC 51-11, 51-13: Motor Lock; Motor Drive Circuit Malfunction
- DTC 51-12: Motor Drive Circuit Malfunction
- DTC 52-12: Motor Stuck OFF
- DTC 53-01, 53-12: Motor Relay Stuck ON 1; Motor Relay Stuck ON 2
- DTC 54-03: Fail-Safe Relay 1 Stuck ON
- DTC 54-04, 54-21: Fail-Safe Relay 1 Stuck OFF (Initial); Fail-Safe Relay 1 Stuck OFF (Main)
- DTC 61-01, 61-21, 61-22, 61-23: ABS Modulator-Control Unit Initial IG Low Voltage; ABS Modulator-Control Unit Power Source Low Voltage 1; ABS Modulator-Control Unit Power Source Low Voltage 2; ABS Modulator-Control Unit Power Source Low Voltage 3
- DTC 62-21: ABS Modulator-Control Unit IG High Voltage
- DTC 71-21, 71-22, 71-23, 71-24, 71-25, 71-26: Right-Front or Left-Rear Different Diameter Tire Malfunction; Left-Front or Right-Rear Different Diameter Tire Malfunction; Right-Front and Right-Rear Different Diameter Tire Malfunction; Left-Front and Left-Rear Different Diameter Tire Malfunction; Right-Front and Left-Front Different Diameter Tire Malfunction; Right-Rear and Left-Rear Different Diameter Tire Malfunction
- DTC 81-xx*: Central Processing Unit (CPU) Internal Circuit Malfunction
- DTC 81-11, 81-51, 81-52: Central Processing Unit (CPU) Internal Circuit Malfunction; Central Processing Unit (CPU) Internal Circuit Malfunction; Central Processing Unit (CPU) Internal Circuit Malfunction
- DTC 86-01: F-CAN Bus-off Malfunction
- DTC 86-24, 86-25: F-CAN Communication With Engine Malfunction; F-CAN Communication With Engine Malfunction
- DTC 86-FF: F-CAN Communication With ABS Malfunction
- Symptom Troubleshooting
- ABS Modulator - Control Unit Removal and Installation
- Wheel Speed Sensor Replacement
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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