Reply To: RE: 95 Quest diagnostic connection location

New Topics Forums General Discussion 1993 – 1998 Nissan Quest 1995 Quest Diagnostic Connection Location Reply To: RE: 95 Quest diagnostic connection location

#6137

prgonzalez
Participant

The connector that is located at the bottom of the fuse box is the connector for Nissan Consult. That is the Nissan’s proprietary diagnistics computer.

The generic diagnostic port is near the starter in the engine compartment. However, it is not a plug what you are looking for. The connectors are called F28 and E30. These are used to switch from diagnostics mode I to mode II.

To access diagnostics mode I:

1. Switch to ON (Do not start engine)
2. Wait for Check Engine Light (CEL) to come on
3. Start engine
4. Read CEL code: count the long and short blinks. Long blinks are tens and shorts are decimans. Example: three longs and two shorts is “32”

To access diagnostics mode II you have to disconnect then make a jumper between terminals (a) in E30 to (b) in F28. Here is the procedure:

1. Switch to ON (Do not start engine)
2. Disconnect connectors E30 anf F28
3. Jump terminals (a) in E30 with (b) in F28
4. Wait at least 2 seconds
5. Remove jumper and reconnect E30/F28
6. Read CEL code