| All values measured to ground unless otherwise noted | |||
| K40/2 | |||
| C1.2,3 | Circuit 30 main power input | 12 VDC at all times | Feed from battery via X4 |
| C1.4 | Main ground to W1 | Approx. 0 Ohms to ground | |
| N10/1 | |||
| 2.6 | CAN Class B bus (high side). Mid speed data transfer bus input and output, exchanges data with EIS ECM | No reliable test. Check continuity to all appropriate ECMs. Approx. 5 VAC when data is on bus | HHT is also used for CAN diagnosis |
| 2.7 | CAN Class B bus (low side) | See pin 2.6 | |
| N73 | |||
| A.2,3 | Circuit 30 main power input | 12 VDC at all times | Feed from battery via X4 |
| A.6 | Circuit 30 power output to electronic steering lock ECM | 12 VDC at all times | Distribution via F1f27 |
| B.3 | Main ground to W1 | Approx. 0 Ohms to ground | |
| B.4 | ??? | ||
| B.5 | ??? | ||
| B.10 | CAN Class B bus (high side). Mid speed data transfer bus input and output, exchanges data with SAM ECM | No reliable test. Check continuity to all appropriate ECMs. Approx. 5 VAC when data is on bus | HHT is also used for CAN diagnosis Note 2 |
| B.11 | CAN Class B bus (low side) | See pin B.10 | |
| C.1 | CAN Class C bus (high side). High speed data transfer bus input and output, exchanges data with other ECMs | No reliable test. Check continuity to other ECMs. Approx. 5 VAC when data is on bus | HHT is also used for CAN diagnosis Note 2 |
| C.2 | CAN Class C bus (lowside). High speed data transfer bus input and output | See pin C.1 | |
| Note 1 | Due to various functions K40/2, N10/1 and N73 are split up in several system diagrams. Therefore only the relating pins are listed. Pins not shown are unrelated to this system | ||
| Note 2 | N73 is gateway for data exchange between CAN Class C and Class B bus | ||