Electronic Control Unit (Ecu)
The ECU consists of a microcomputer, inspection lights, diagnostic mode selector, connectors and wiring for voltage signal input, voltage signal output and power supply. The unit is not serviceable and should not be opened. Inspection lights are provided on side of unit so system operation can be checked. The control unit contains memory and logic circuits, enabling it to interpret sensor inputs and control various engine systems.
ECU LOCATIONS
| Application | Location |
|---|---|
| Maxima | Behind Center Console |
| NX & Sentra | Behind Center Console |
| Pathfinder & Pickup | Under Passenger Seat |
| Stanza | Under Center Console |
| 240SX | Behind Passenger Side Kick Panel |
| 300ZX | Behind Glove Box |
NOTE:
Components are grouped into 2 categories. The first category covers INPUT DEVICES, which control or produce voltage signals monitored by the ECU. The second category covers OUTPUT SIGNALS, which are components controlled by the ECU.