Understanding your Nissan’s onboard diagnostics system is crucial for both routine maintenance and tackling unexpected car troubles. The OBD2 (On-Board Diagnostics II) port is your gateway to this system, allowing you to communicate with your vehicle’s computer and retrieve valuable data. This article will delve into the Nissan Obd2 Connector Pinout, providing you with a clear understanding of each pin’s function and how it relates to diagnosing your Nissan vehicle.
The OBD2 standard was mandated in the United States for all cars manufactured after 1996, and subsequently adopted in many other countries. It provides a standardized way to access vehicle diagnostic information, emission data, and other crucial parameters. For Nissan owners, understanding the OBD2 port and its pinout is the first step in effective vehicle diagnostics and maintenance.
Let’s break down the Nissan OBD2 connector pinout to understand what each pin is responsible for:
| Pin | Signal | Description |
|---|---|---|
| 1 | CHECK | Manufacturer Discretion |
| 2 | J1850 Bus+ | SAE J1850 VPW and PWM bus (+) |
| 4 | CGND | Chassis Ground |
| 5 | SGND | Signal Ground |
| 6 | CAN High | CAN bus high (J-2284) |
| 7 | K-LINE | ISO 9141-2 and ISO 14230-4 (K line) |
| 8 | Ignition ON | Manufacturer Discretion |
| 9 | ABS | Manufacturer Discretion – often ABS system |
| 10 | J1850 Bus- | SAE J1850 VPW and PWM bus (-) |
| 11 | Adjust Switch | Manufacturer Discretion |
| 12 | SCI TX | Manufacturer Discretion – Serial Communication Interface Transmit |
| 13 | SCI RX | Manufacturer Discretion – Serial Communication Interface Receive |
| 14 | CAN Low | CAN bus low (J-2284) |
| 15 | ISO 9141-2 L-LINE | ISO 9141-2 and ISO 14230-4 (L line) |
| 16 | +12v | Battery Power |
This table outlines the standard OBD2 pin assignments and their typical functions within a Nissan vehicle. It’s important to note that while the OBD2 port is standardized, some pins are left to the manufacturer’s discretion. In Nissan’s case, pins like 1, 8, 9, 11, 12 and 13 may be used for specific Nissan systems or diagnostic purposes beyond the standard OBD2 protocols.
Nissan OBD2 Connector Pinout Diagram: Illustrating the physical arrangement of pins within the standard OBD2 port used in Nissan vehicles.
Understanding these pins is essential when using an OBD2 scanner to diagnose your Nissan. Pins 4 and 5 provide the necessary ground for the diagnostic tool, while pin 16 supplies power. Pins 6 and 14 are crucial for vehicles using the CAN (Controller Area Network) protocol, a common communication standard in modern cars. Pins 7 and 15 are used for the ISO 9141-2 and ISO 14230-4 protocols, which were prevalent in older Nissan models. Pins 2 and 10 are for vehicles utilizing the J1850 protocol, primarily found in some older American makes but less common in Nissans.
Nissan OBD-2 Compatibility and Protocols
Nissan vehicles, like other manufacturers, have adopted different OBD2 protocols over the years. Knowing which protocol your Nissan uses is important for selecting the right OBD2 scanner and ensuring proper communication with your car’s computer.
Here’s a compatibility list outlining common Nissan models, their engine types, starting year of OBD2 compliance, and the OBD2 protocols they typically use:
| Model | Engine | Year (starting from) | OBD-2 Protocol |
|---|---|---|---|
| Nissan 240SX | 1996 | ISO 14230-4, ISO 9141-2 | |
| Nissan 350z | Gasoline (171 HP) | 2003 | |
| Gasoline (277 HP) | 2004 | ISO 9141-2 | |
| 3.5, Gasoline (280HP) | 2004 | ISO 9141 | |
| 3.5 V6, Gasoline (313HP) | 2007 | ISO 9141 | |
| Nissan Almera | N16, Diesel (113 HP) | 2000 | ISO 14230-4, ISO 9141-2 |
| N16, Gasoline (114 HP) | 2000 | ISO 9141-2 | |
| 1.5i, Gasoline (90HP) | 2000 | ISO 9141 | |
| 2.2 vdi, Diesel (110HP) | 2000 | ISO 9141 | |
| N16 2.2dCi, Diesel (135 HP) | 2003 | ||
| 1.5 dCi (K9K), Diesel (82HP) | 2003 | KWP FAST | |
| 1461 cm3, Diesel (82HP) | 2003 | KWP FAST | |
| Nissan Almera tino | 1.8, Gasoline (115HP) | 2001 | ISO 9141 |
| Gasoline (135 HP) | 2002 | ISO 14230-4, ISO 9141-2 | |
| Nissan Altima | 1997 | ISO 14230-4, ISO 9141-2 | |
| 1999 | ISO 14230-4, ISO 9141-2 | ||
| 2.5, Gasoline (175HP) | 2002 | ISO 9141 | |
| Nissan Altima GXE | 1997 | ISO 14230-4, ISO 9141-2 | |
| Nissan Frontier | 1999 | ISO 14230-4, ISO 9141-2 | |
| Nissan k11 | Gasoline (60 HP) | 2001 | |
| Nissan Kubistar | 1.2 16V, Gasoline (75HP) | 2007 | KWP FAST |
| Nissan Maxima | 1996 | ISO 14230-4, ISO 9141-2 | |
| Nissan Maxima GLE | 1999 | ISO 14230-4, ISO 9141-2 | |
| Nissan Micra | Gasoline (81 HP) | 2001 | ISO 9141-2 |
| Gasoline (81 HP) | 2001 | ISO 9141-2 | |
| Gasoline (60 HP) | 2001 | ISO 9141-2 | |
| 2003 | ISO 14230-4, ISO 9141-2 | ||
| 1.2i, Gasoline (80HP) | 2003 | ISO 9141 | |
| 1.4i, Gasoline (88HP) | 2003 | ISO 9141 | |
| Gasoline (65 HP) | 2005 | ISO 9141-2 | |
| 1.5 dCi, Diesel (65HP) | 2005 | KWP FAST | |
| 1.5 dCi, Gasoline (70HP) | 2005 | CAN 11bit (500kb) | |
| 1.2i, Gasoline (65HP) | 2006 | ISO 9141 | |
| 1.5 dCi, Diesel (85HP) | 2007 | CAN 11bit (500kb) | |
| Nissan Micra K11 | Gasoline (60 HP) | 2002 | |
| Nissan Mikra K12 | Diesel (68 HP) | 2006 | |
| Nissan Murano | Gasoline (231 HP) | 2005 | ISO 9141-2 |
| Nissan Navara | 2.5 dCi, Diesel (174HP) | 2007 | KWP SLOW |
| 2.5, Diesel (190HP) | 2011 | CAN 11bit (500kb) | |
| v9x, Diesel (300HP) | 2011 | CAN 11bit (500kb) | |
| Nissan Note | DCI, Diesel (85 HP) | 2006 | |
| 1.6, Gasoline (109 HP) | 2007 | ||
| 1.4, Gasoline (88HP) | 2007 | ISO 9141 | |
| 1.5 dCi, Diesel (86HP) | 2009 | CAN 11bit (500kb) | |
| 1.6, Diesel (90HP) | 2010 | CAN 11bit (500kb) | |
| Nissan NV200 | 1.4 dCi, Diesel (75HP) | 2010 | CAN 11bit (500kb) |
| Nissan Pathfinder | 2002 | ISO 14230-4, ISO 9141-2 | |
| 2.5 dCi, Diesel (174HP) | 2005 | KWP SLOW | |
| Nissan Patrol | 3L DI, Diesel (160HP) | 2008 | CAN 11bit (500kb) |
| Nissan Primastar | 1.9 dCi, Diesel (82HP) | 2004 | KWP FAST |
| 2.0 dCi, Diesel (115HP) | 2006 | KWP FAST | |
| Nissan Primera | 1999 | ISO 14230-4, ISO 9141-2 | |
| , Gasoline (113 HP) | 2000 | ISO 14230-4, ISO 9141-2 | |
| 1.8 16v, Gasoline (115HP) | 2001 | ISO 9141 | |
| Gasoline (139 HP) | 2002 | ISO 9141-2 | |
| Nissan Primera Traveler Sport | (P11), Gasoline (113 HP) | 1999 | ISO 9141-2 |
| Nissan Qashqai | 2.0 dCi, Diesel (150HP) | 2007 | CAN 11bit (500kb) |
| 1.5 dCi, Diesel (106HP) | 2010 | CAN 11bit (500kb) | |
| 1.5 dCi, Diesel (110HP) | 2011 | CAN 11bit (500kb) | |
| 1.6, Gasoline (117HP) | 2011 | CAN 11bit (500kb) | |
| Nissan Qashqai +2 FL | Gasoline (140 HP) | 2010 | ISO 9141-2 |
| Nissan Qashqai+2 (no FL) | Gasoline (140 HP) | 2008 | ISO 9141-2 |
| Nissan Sentra | 2001 | ISO 14230-4, ISO 9141-2 | |
| Nissan Sentra SE | 2000 | ISO 14230-4, ISO 9141-2 | |
| Nissan Sentra SE-R | 2002 | ISO 14230-4, ISO 9141-2 | |
| Nissan Sentra SpecV | 2003 | ISO 14230-4, ISO 9141-2 | |
| Nissan Sunny (Almera Limousine Middle East) | Gasoline (121 HP) | 2005 | |
| Nissan Terrano | 1997 | ISO 14230-4, ISO 9141-2 | |
| Nissan X-trail | 2.2 dCi, Diesel (136HP) | 2004 | ISO 9141 |
| 2.2 dCi, Diesel (136HP) | 2004 | KWP SLOW | |
| Gasoline (163 HP) | 2005 | ISO 9141-2 | |
| 2.5, Gasoline (121HP) | 2005 | ISO 9141 | |
| (T31), Diesel (171 HP) | 2008 | ||
| 2, Diesel (173HP) | 2008 | CAN 11bit (500kb) |
Note: This list is not exhaustive and protocol usage can vary based on specific vehicle configurations and regional differences. Always consult your vehicle’s manual for the most accurate information.
As a general guideline, Nissan models from the late 1990s to early 2000s often utilized the ISO 9141 and ISO 14230 protocols. Around 2005-2007, some models might use KWP (Keyword Protocol) or other transitional protocols. More modern Nissan vehicles, typically from 2008 onwards, predominantly employ the CAN (Controller Area Network) protocol, which is the industry standard for OBD2 communication today.
Nissan Specific OBD-II Trouble Codes
While generic OBD-II codes provide a standardized way to understand vehicle issues, manufacturers like Nissan also have their own set of specific diagnostic trouble codes (DTCs). These codes can provide more granular information related to Nissan’s unique systems and components.
Here are some Nissan-specific OBD-II codes and their descriptions:
- P1105 MAP/BARO Pressure Switch Solenoid Valve
- P1110 Intake Valve Timing Control Solenoid
- P1120 Secondary Throttle Position Sensor Circuit Fault
- P1125 Tandem Throttle Position Sensor Circuit Fault
- P1126 Thermostat Function
- P1130 Swirl Control Valve Control Solenoid Valve
- P1135 Intake Valve Timing Control Circuit (Bank 2)
- P1140 Intake Valve Timing Control Position Sensor (Bank 1)
- P1145 Intake Valve Timing Control Position Sensor (Bank 2)
- P1148 Closed Loop Control (Bank 1)
- P1165 Swirl Control Valve Control Vacuum Switch
- P1168 Closed Loop Control (Bank 2)
- P1210 Traction Control System Signal Fault
- P1211 ABS/TCS Control Unit
- P1212 ABS/TCS Communication Line
- P1217 Engine Over Temperature (Overheat)
- P1220 Fuel Pump Control Signal Fault
- P1320 Ignition Signal
- P1335 Crankshaft Position Sensor (REF)
- P1336 Crankshaft Position Sensor (CKPS)
- P1400 EGRC Solenoid Valve
- P1401 EGR Temperature Sensor
- P1402 EGR System
- P1440 EVAP Control System Small Leak
- P1441 Vacuum Cut Valve Bypass Valve
- P1443 EVAP Canister Control Vacuum Switch Circuit Fault
- P1444 Canister Purge Volume Control Solenoid Valve
- P1445 EVAP Canister Purge Volume Control Valve
- P1446 EVAP Canister Vent Control Valve (Closed)
- P1447 EVAP Control System Purge Flow Monitoring
- P1448 EVAP Canister Vent Control Valve (Open)
- P1464 Fuel Level Sensor Circuit (Ground Signal)
- P1490 Vacuum Cut Valve Bypass Valve (Circuit)
- P1491 Vacuum Cut Valve Bypass Valve
- P1492 EVAP Canister Purge Control/Solenoid Valve (Circuit)
- P1493 EVAP Canister Purge Control Valve/Solenoid Valve
- P1550 TCC Solenoid Valve
- P1605 A/T Diagnostic Communication Line
- P1701 Fuel Trim
- P1705 Throttle Position Sensor Circuit A/T
- P1706 Park/Neutral Position (PNP) Switch
- P1760 Overrun Clutch Solenoid Valve (Circuit)
Nissan OBD2 Port Location: Illustrating the typical placement of the OBD2 connector within the cabin of a Nissan Qashqai, usually under the dashboard.
When diagnosing your Nissan, it’s beneficial to have access to a scan tool that can read both generic OBD-II codes and manufacturer-specific codes. This will provide a more comprehensive understanding of any issues your vehicle may be experiencing. Many modern OBD2 scanners offer enhanced diagnostics capabilities, including the ability to read these Nissan-specific codes.
OBD-II Cable Schemes for Nissan Diagnostics
Depending on the OBD2 protocol used by your Nissan and the capabilities of your diagnostic tool, you might need different OBD-II cable configurations. Here are some common OBD-II cable schemes that are relevant for Nissan vehicles:
-
OBD-2 ISO 9141-2 (14230-4, KWP2000) simple serial cable: This cable is suitable for older Nissan models that use ISO 9141-2 or ISO 14230-4 protocols. It typically utilizes the K-line (pin 7) for communication. Link to OBD-2 ISO 9141-2 Cable Scheme
-
OBD-2 J1850 PWM, J1850 VPW serial ELM327 cable: While less common in Nissans, some older models might theoretically use J1850 protocols. This type of cable is designed for those systems. Link to OBD-2 J1850 Cable Scheme
-
OBD-2 universal ISO 15765-4 CAN, SAE J1850 PWM, SAE J1850 VPW, ISO 9141-2, ISO 14230-4 and SAE J1939 diagnostic cable: For maximum compatibility, especially with modern CAN-based Nissan vehicles and older models, a universal diagnostic cable is recommended. These cables support multiple protocols and ensure you can communicate with a wide range of Nissan vehicles. Link to OBD-2 Universal Cable Scheme
In Conclusion
Understanding the Nissan OBD2 connector pinout, the OBD2 protocols used in different Nissan models, and Nissan-specific trouble codes is invaluable for effective vehicle diagnostics and maintenance. By familiarizing yourself with this information, you can confidently use OBD2 scanners to read diagnostic data, troubleshoot issues, and keep your Nissan running smoothly. Remember to always consult your vehicle’s service manual for the most accurate and model-specific information regarding OBD2 compatibility and diagnostic procedures.
