Honda Fit/Jazz - EPS System Description (Except HATC Model)
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EPS System Description
EPS Control Unit Inputs and Outputs for Connector A (2P)
| Terminal number | Wire color | Terminal sign (Terminal name) | Description | Measurement | ||
|---|---|---|---|---|---|---|
| Terminals | Conditions Ignition switch ON (II) | Voltage | ||||
| 1 | RED | M + (Motor plus) | Drives the actuator motor | 1-Ground | ——— | ——— |
| 2 | WHT/ BLU | + B (Plus battery) | Power source for the actuator motor | 2-Ground | Every time | Battery voltage |
| 3 | GRN | M - (Motor minus) | Drives the actuator motor | 3-Ground | ——— | ——— |
| 4 | BLK | GND (power ground) | Ground for the actuator motor | 4-Ground | ——— | ——— |
EPS Control Unit Inputs and Outputs for Connector B (14P)
| Terminal number | Wire color | Terminal sign (Terminal name) | Description | Measurement | |||
|---|---|---|---|---|---|---|---|
| Terminals | Conditions (Ignition switch ON (II)) | Voltage | |||||
| 1 | WHT | Vcc (Voltage common) | Power source for torque sensor | 1-Ground | Ignition switch ON (II) | About 9 V | |
| Ignition switch OFF | 0 V | ||||||
| 2 | YEL | V-ref (Reference voltage) | Reference voltage for torque sensor | 2-Ground | Ignition switch ON (II) | 3.3 V | |
| 3 | PNK/BLU | RY+ (Relay trigger plus) | Drives the motor relay (motor relay is turned OFF when problem occurs) | 3-Ground | Start the engine | Battery voltage | |
| Ignition switch OFF | 0 V | ||||||
| 4 | BLU/YEL | VSP (Vehicle speed pulse) | Detects the vehicle speed signal for the speed sensor or the ECM/PCM (4 pulse/Rev) | 4-Ground | Raise the vehicle off the ground and spin the front wheel | Alternating voltage about 0 V-5 V-0 V-5 V | |
| 5 | BLU | NEP (Engine pulse) | Detect the engine pulse | 5-Ground | Start the engine | About 0 V-Battery Voltage | |
| 6 | YEL | IG1 (Ignition 1) | Power source for activating the system | 6-Ground | Ignition switch ON (II) | Battery voltage | |
| Ignition switch OFF | 0 V | ||||||
| 7 | GRY/BLU | SG (Sealed ground) | Ground for the sealed line | 7-Ground | ——— | ——— | |
| 8 | BRN | SE (Sensor earth) | Ground for the torque sensor | 8-Ground | ——— | ——— | |
| 9 | RED | Sub (Sub voltage) | Defects torque sensor signal | 9-Ground | Start the engine and turn the steering wheel | About 0.5 V«4.5 V | |
| 10 | BLU | Main (Main voltage) | Detects torque sensor signal | 10-Ground | |||
| 11 | BRN | SCS (Service check signal) | Detects service check connector signal | ——— | ——— | ——— | |
| 13 | YEL/RED | WLP (Warning lamp) | Drives the EPS indicator light | 13-Ground | EPS indicator | ON | Battery voltage |
| OFF | 0 V | ||||||
| 14 | GRY | DIAG-H (Diagnosis-H) | Communicate with Honda PGM-Tester | ——— | ——— | ——— | |
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