ESC HECU Connector Input / Output
ESC HECU CONNECTOR TERMINALS REFERENCE
| Connector Terminal | Specifications | Conditions | |
|---|---|---|---|
| No | Description | ||
| 1 | Ground (Pump) | Current range: Min-10 A Max-20 to 39 A | Always |
| 4 | Ground (Valve, ECU) | Current range: Min-2.5 A Max-5 to 15 A | Always |
| 2 | Supply voltage (Pump) | Battery voltage | Always |
| 3 | Supply voltage (Valve) | ||
| 26 | Wheel sensor voltage (FL) | Battery voltage | IG ON |
| 9 | Wheel sensor voltage (FR) | ||
| 6 | Wheel sensor voltage (RL) | ||
| 8 | Wheel sensor voltage (RR) | ||
| 5 | Wheel sensor signal (FL) | Voltage (High): 0.89-1.26 V Voltage (Low): 0.44-0.63 V |
RUNNING |
| 10 | Wheel sensor signal (FR) | ||
| 27 | Wheel sensor signal (RL) | ||
| 29 | Wheel sensor signal (RR) | ||
| 11 | Diagnosis Input/output | Voltage (High): 0.8 * IG ON more Voltage (Low): 0.2 * IG ON lower |
SCAN TOOL Communication |
| 28 | Ignition | Battery voltage | KEY ON/OFF |
| 31 | ESC Passive switch | Voltage (High): 0.6 * IG ON more Voltage (Low): 0.4 * IG ON lower |
Switch ON/OFF |
| 37 | Yaw Rate Sensor Test | Voltage (High): 4.1 V more Voltage (Low): 1 V lower |
IG ON |
| 18 | Yaw Rate Sensor Reference | 2.464 V to 2.536 V | IG ON |
| 16 | Yaw Rate Sensor Signal | Offset voltage: 2.5 V range : 0.35- 4.65 V(-100 to 100° /s) | IG ON |
| 20 | Acceleration Sensor Signal | Offset voltage: 2.5 V range : 0.35- 4.65 V(-1.8 g to 1.8 g) | IG ON |
| 15 | Yaw Rate Sensor Ground | GND LEVEL | Always |
| 35 | CAN High | IG ON | |
| 14 | CAN Low | ||
| 30 | BRAKE LIGHT SWITCH | voltage (High): 0.8 * IG ON more voltage (Low): 0.3 * IG ON lower |
BRAKE ON/OFF |