All values measured to ground unless otherwise noted
Conn./Plug/Pin Pin Information Test Value Comments
N70      
A.1 Main ground to W19 Approx. 0 Ohms to ground  
A.2 Circuit 30 power input 12 VDC at all times Feed from F1f9
A.3 CAN Class B bus (low side). Mid speed data transfer bus input and output, exchanges data with other ECMs No reliable test. Check continuity of wiring. Approx. 5 VAC when data is on bus  
A.6 CAN Class B bus (high side) See pin A.3  
B.1 Sliding/pop-up roof motor power output Ignition on 12 VDC to pin B.2 with sliding/pop-up roof actvated, polarity reversable  
B.2 Sliding/pop-up roof motor power output See pin B.1  
B.3 Hall sensor 1 signal input 7.1 - 7.5 VAC (rms voltage)  
B.4 Circuit 15R sensors power output 12 VDC with key in steering lock position "1"  
B.5 Hall sensor 2 signal input 7.1 - 7.5 VAC (rms voltage)  
B.6 Circuit 31 sensors ground output Approx. 0 Ohms to ground  
Note 1 Due to various functions N70 is split up in several system diagrams, therefore only the relating pins are listed. Pins not shown are unrelated to this system