Battery sensor (343)
| Battery sensor (343) | 
| Location | 
Forms part of the cable terminal for the battery negative connection.
| Main task | 
To measure:
| • | Current flowing in the circuit, i.e. its size and direction | |
| • | Battery voltage | |
| • | Temperature. | |
| Type | 
Sensor with integral electronics.
 
   
   | Connection | 
| 343 pin no. | Signal type | Description | 
| 1 | Serial communication with BCM | Measurement data from the battery current sensor and diagnostic communication. | 
| 2 | Power supply, B+ | Power supply, +30. | 
| 3 | Ground | Ground via connection to battery negative connection. | 
 
   
   

 
     
		