| 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 | |
| C2.2 | Circuit 15 power input, switched by EIS ECM | 12 VDC with key in steering lock position "2" | |
| M4.1 | Circuit 15 power output to heated windshield washer system | 12 VDC with key in steering lock position "2" | |
| M4.11 | Washer pump power supply | See pin M4.10 | |
| M7.1 | Wiper arm "Parked" recognition, switched ground input | Ignition on 12 VDC to pin C1.2 (circuit 30) | |
| M7.2 | Ground output power, low side of wiper motor | Approx. 0 Ohms to ground | |
| M7.3 | Normal wipe mode power output, activates wiper motor | Ignition on, S4 to pos II 12 VDC | |
| M7.4 | Fast wipe mode power output, activates wiper motor | Ignition on, S4s5 to pos III 12 VDC | |
| 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 | |
| 2.7 | CAN Class B bus (low side) | See pin 2.6 | |
| 4.1 | CAN Class B bus (low side). Mid speed data transfer bus input and output, exchanges data with other ECMs | No reliable test. Check continuity to all appropriate ECMs. Approx. 5 VAC when data is on bus | |
| 4.2 | CAN Class B bus (high side) | See pin 4.1 | |
| 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 F4f9 |
| 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 | |
| E.1 | Circuit 15 power output to rain sensor | Ignition on 12 VDC | |
| E.2 | Ground output to rain sensor | Approx. 0 Ohms to ground | |
| E.3 | Rain sensor signal input and output, controls wiper interval period depending on rain intesity | No reliable test. Check continuity of wiring | N73 receives and requests data in wiper interval mode |
| N73 | |||
| A.2,3 | Circuit 30 main power input | 12 VDC at all times | Feed from battery via X4 |
| B.1 | Combination switch signal input | Ignition on, wiper switch S4s5 in position: Intevall 31.5-31.7 Ohms stage 1 31.0-31.1 Ohms stage 2 30.8-30.9 Ohms |
|
| B.2 | Combination switch signal input | Ignition on, washer switch S4s4 in position: Touch wipe 31.0-31.1 Ohms wash 30.8-30.9 Ohms |
|
| B.3 | Main ground to W1 | Approx. 0 Ohms to ground | |
| 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 1 |
| 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 N70 are split up in several system diagrams, therefore only the relating pins are listed. Pins not shown are unrelated to this system | ||