| All values measured to ground unless otherwise noted | |||
| A37 | |||
| 1.1 | Trunk lid/lamp contact switch ground signal input | Ignition off approx. 0 Ohms when trunk is open | |
| 1.8 | CAN Class B bus (high 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 | HHT is also used for CAN diagnosis |
| 1.9 | CAN Class B bus (low side) | See pin 1.8 | |
| 1.13 | Trunk lid/tailgate contact switch ground signal input | Ignition off approx. 0 Ohms when trunk is open | |
| 1.14 | Left front door contact switch ground signal input | Ignition off approx. 0 Ohms when door is open | |
| 1.16 | Right front door contact switch ground signal input | Ignition off approx. 0 Ohms when door is open | |
| 1.17 | Left rear door contact switch ground signal input | Ignition off approx. 0 Ohms when door is open | |
| 1.18 | Right rear door contact switch ground signal input | Ignition off approx. 0 Ohms when door is open | |
| 2.2 | Circuit 30 fused power input | 12 VDC at all times | Feed from F4f4 |
| 2.3 | Main ground to W7 | Approx. 0 Ohms to ground | |
| 2.4 | Circuit 30 fused power input | 12 VDC at all times | Feed from F4f2 |
| 3.5 | Engine hood contact switch ground signal input | Ignition off approx. 0 Ohms when engine hood is open | |
| 3.11 | ATA/CL signal output | 12 VDC when ATA/CL activated | Internally linked to CAN, activated by S6/1s2 via N10/1 |
| 3.12 | Stop lamp switch (normally open) input. Same signal as to brake lights |
Ignition on, 12 VDC with brakes applied, 0 VDC with brakes not applied |
|
| 4.1 | ATA signal output to illumination control module N7 | 12 VDC when alarm triggered | |
| 4.3 | ATA signal output to alarm horn | 12 VDC when alarm triggered, sounds alarm horn | |
| 4.4 | Exterior lights delayed switch off signal input | 12 VDC with exterior lights on | |
| 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 W7 | 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 | |
| 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 | HHT is also used for CAN diagnosis |
| 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 main 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 between various ECMs | No reliable test. Check continuity to all appropriate ECMs. Approx. 5 VAC when data is on bus | HHT is also used for CAN diagnosis |
| A.6 | CAN Class B bus (high side) | See pin A.3 | |
| A.7 | Radio remote control RF signal input and output | No reliable test. Functional test with Radio RC | |
| N73 | |||
| A.2,3 | Circuit 30 main power input | 12 VDC at all times | Feed from battery via X4 |
| B.1 | 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 CCM | No reliable test. Check continuity to all appropriate ECMs. Approx. 5 VAC when data is on bus | HHT is also used for CAN diagnosis |
| B.11 | CAN Class B bus (low side) | See pin B.10 | |
| Note 1 | Due to various functions the ECM's involved in this system are split up in several system diagrams. Therefore only the relating pins are listed. Pins not shown are unrelated to this system | ||