EPS Control Unit Inputs and Outputs for Connector C (13P)

Terminal number | Wire color | Terminal sign (Terminal name) | Description | Measurement
--- | --- | --- | --- | ---
Terminals | Conditions (Ignition Switch ON (II)) | Voltage
1 | BLK | GND2(Ground 2) | Ground for the EPS control unit | ——— | ——— | ———
2 | RED/BLU | EPSRXD/LKASTXD | Communications with LKAS control unit | 2−GND | Ignition switch ON (II) | Battery voltage
3 | WHT/RED | EPSTXD/LKASRXD | Communications with LKAS control unit | 3−GND | Ignition switch ON (II) | Battery voltage
4 | LT BLU | K-LINE (Data link connector) | Communicates with HDS | 4−GND | HDS not connected | 5 V
5 | BLK | GND1 (Ground 1) | Ground for the EPS control unit | ——— | ——— | ———
6 | YEL | IG1 (Ignition 1) | Power source for activating the system | 6−GND | Ignition switch ON (II) | Battery voltage
Ignition switch OFF | 0 V
9 | WHT | NEP (Engine pulse) | Detects tachometer signal | 9−GND | Start the engine | About 3− 6 V
10 | BLU | VSP(Vehicle speed pulse) | Detects vehicle speed signal from the speedometer | 10−GND | Turn the front wheel | Battery voltage
11 | YEL | WLP (Warning) | Drives the EPS indicator | 11−GND | Start the engine | Battery voltage
Ignition switch OFF | 0 V
12 | BRN | SCS (Service check signal) | Detects service check connector signal | 12−GND | SCS not grounded | Battery voltage
13 | GRY | PSW (Power steering signal) | Provides idle speed-up signal to the ECM/PCM | 13−GND | Start the engine and turn the steering wheel to full lock | Battery voltage for 1 second