CAN Gateway
The CAN Gateway is a module in the ZE1 Nissan Leaf. It connects multiple CAN Buses together. It is described in the service manual as a 6 channel CAN gateway, implying that it can communicate on up to 6 CAN buses. However, wiring diagrams show 10 different CAN bus connections, so it must in some cases either act as both ends of a bus, or operate in the middle of a bus with connections in and out.
Location and access[edit | edit source]
The CAN Gateway is located behind the Combination Meter.
JDM ZE1 Leaf Instrument Cluster Removal and Installation
Known part numbers[edit | edit source]
- 284U1 5SN0A[1]
Connections[edit | edit source]
The CAN Gateway has a single 24-pin connector (M101) of type TH24FW-NH.[2] Pin numbers are from the harness side, as if you were holding the wires and looking into the back of the connector. These do not match the pin numbers on the connector itself.
| Terminal No. | Color of Wire | Signal Name |
|---|---|---|
| 1 | L | VEHICLE CAN COMMUNICATION CIRCUIT-H |
| 2 | BR | ADAS CAN COMMUNICATION-H |
| 3 | W | BATTERY |
| 4 | SB | IT CAN COMMUNICATION CIRCUIT-H (EXCEPT FOR MEXICO) |
| 5 | B | GROUND |
| 6 | GR | CHASSIS CAN COMMUNICATION CIRCUIT-H |
| 7 | BR | ITS CAN COMMUNICATION CIRCUIT 2-H |
| 8 | L | DIAGNOSTIC CAN COMMUNICATION CIRCUIT-H |
| 9 | GR | CHASSIS CAN COMMUNICATION CIRCUIT-H |
| 10 | BR | ADAS CAN COMMUNICATION-H |
| 11 | L | DIAGNOSTIC CAN COMMUNICATION CIRCUIT-H |
| 12 | L | – |
| 13 | P | VEHICLE CAN COMMUNICATION CIRCUIT-L |
| 14 | W | ADAS CAN COMMUNICATION-L |
| 15 | G | IGNITION |
| 16 | V | IT CAN COMMUNICATION CIRCUIT-L (EXCEPT FOR MEXICO) |
| 17 | B | GROUND |
| 18 | G | CHASSIS CAN COMMUNICATION CIRCUIT-L |
| 19 | R | ITS CAN COMMUNICATION CIRCUIT 2-L |
| 20 | W | DIAGNOSTIC CAN COMMUNICATION CIRCUIT-L |
| 21 | G | CHASSIS CAN COMMUNICATION CIRCUIT-L |
| 22 | W | ADAS CAN COMMUNICATION-L |
| 23 | W | DIAGNOSTIC CAN COMMUNICATION CIRCUIT-L |
| 24 | G | – |
Buses connected[edit | edit source]
| Bus | Pins (H,L) | Comments |
|---|---|---|
| VEHICLE CAN | 1,13 | VCM, IPDM, Air bag diagnosis, combination meter, keyless entry, TPMS, VSP, BCM |
| ADAS CAN | 2,14 and 10,22 | Wiring diagram appears to show 2 bridged to 10 and 14 bridged to 22 |
| IT-CAN | 4,16 | AV control unit, TCU, CAN terminator |
| CHASSIS CAN | 6,18 and 9,21 | Steering angle sensor, EPS control unit, chassis control module, parking brake, brakes, ABS
It is likely that the CAN gateway is the terminator at both ends of this bus |
| ITS-CAN | 7,19 | Around View Monitor Control Unit, Side Radars, CAN terminator (ITS) |
| DIAGNOSTIC CAN | 8,20 and 11,23 | OBDII port. Wiring diagram appears to show 8 bridged to 11 and 20 bridged to 23. |
| EV-CAN | 12,24 | VCM, Inverter, PDM, A/C, LBC |
External Links[edit | edit source]
References[edit | edit source]
- ↑ https://i.blackhat.com/Asia-25/Asia-25-Evdokimov-Remote-Exploitation-of-Nissan-Leaf.pdf
- ↑ 2018 LEAF NAM Wiring Diagrams