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 Modulator-Control Unit Inputs and Outputs For 25P Connector
TERMINAL REFERENCE TABLE
| Terminal number | Wire color | Terminal sign | Description | Signal |
|---|---|---|---|---|
| 1 | WHT | CAN-H | F-CAN communication circuit | -- |
| 2 | GRN | FR+B | Detects right-front wheel speed sensor signal | -- |
| 3 | GRY | FL-GND | Detects left-front wheel speed sensor signal | -- |
| 5 | RED | RL-GND | Detects left-rear wheel speed sensor signal | -- |
| 6 | LT BLU | RR+B | Detects right-rear wheel speed sensor signal | -- |
| 8 | WHT | FSR+B | Power source for the fail-safe relay | Battery voltage (about 12 V) at all times |
| 9 | RED | MR+B | Power source for the motor relay | Battery voltage (about 12 V) at all times |
| 10 | BLU | K-LINE | Communication with HDS | -- |
| 12 | ORN | FL+B | Detects left-front wheel speed sensor signal | -- |
| 14 | YEL | RL+B | Detects left-rear wheel speed sensor signal | -- |
| 15 | GRY | RR-GND | Detects right-rear wheel speed sensor signal | -- |
| 16 | PUR | IG1 | Power source for activating the system | With ignition switch ON (II): battery voltage (about 12 V) |
| 17 | RED | CAN-L | F-CAN communication circuit | -- |
| 18 | PNK | FR-GND | Detects right-front wheel speed sensor signal | -- |
| 24 | BLK | GND | Ground for the ABS modulator-control unit | Less than 0.2 V at all times |
| 25 | BLK | MR-GND | Ground for the pump motor | Less than 0.2 V at all times |
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.