Software: ECUTalk (Windows), NDSI (Windows), or Consult for Android with Bluetooth.
If you have an older Nissan, here is the quick reference.
[ 1 ] [ 2 ] [ 3 ] [ 4 ] [ 5 ] [ 6 ] [ 7 ] nissan obd1 pinout
The heart of this article is the pin configuration. The connector consists of 14 slots, though not all of them are populated. The layout is two rows of pins. To read the diagram correctly, imagine looking directly into the face of the connector (the harness side).
This is normal. Nissan only installed the necessary pins. If you are missing Pin 6, 7, or 10, your ECU may not support full Consult communication (rare on early 1990 models). Stick to the blink code method (Pin 1 & 5). Software: ECUTalk (Windows), NDSI (Windows), or Consult for
In an era where modern vehicles are governed by complex CAN-bus systems and require expensive proprietary scanners, there is a distinct satisfaction in working on older Nissans. Vehicles from the early 1990s and before utilize the Nissan OBD1 (On-Board Diagnostics Generation 1) system. While robust and reliable, these systems can be intimidating for DIY mechanics accustomed to simply plugging in a generic OBD2 code reader.
A popular free alternative often used with a USB-to-14-pin adapter for basic code reading and logging. The connector consists of 14 slots, though not
You don't need a scan tool to use the Nissan OBD1 pinout. Here is the step-by-step process for the 1989-1995 models (14-pin Consult).
You have the diagram, but you are still not getting a signal. Here is your troubleshooting checklist.