Inhibit Relay Switch question - no start - Infamous Nissan

bsvsc · 01-22-2022, 01:05 AM

Hey everyone, I've been having a no crank no start issue since the other day. the truck died on me at the dump.

I did some research and came to the conclusion that id test the inhibit switch, so I unplugged it, ran 2 jumper wires to complete the connection and she started right up. so I went down to napa and got a replacement (25230-89981)the replacement is a hair bigger and generic black but the layout is the same and the part numbers matched.

when I plugged the new switch in it wasn't starting. tried jumper wires again and it starts. Is it possible I got a dead relay from napa? is there something else I should check that could be preventing the relay from getting power? I'm at a loss considering it fires up with those connections wire jumped.

bsvsc · 01-22-2022, 01:13 AM

89'HBV6 · 01-22-2022, 01:32 AM

Welcome to IN...

It does help to know much more about your truck... 2WD/4x4? Inline 4 or v6? Auto or manual trans? It could be something else, so...

Foul_Mouth · 01-22-2022, 03:00 AM

If it has an inhibitor relay it's auto. The relay is located by the window washer jug.

bsvsc · 01-22-2022, 11:30 AM

Quote:

Originally Posted by 89'HBV6

Welcome to IN...

It does help to know much more about your truck... 2WD/4x4? Inline 4 or v6? Auto or manual trans? It could be something else, so...

Woops, 87' manual trans, 2wd, 4 cly.

bsvsc · 01-22-2022, 11:31 AM

Quote:

Originally Posted by Foul_Mouth

If it has an inhibitor relay it's auto. The relay is located by the window washer jug.

I may be calling the part by the wrong name, it might be the clutch/starter relay switch? The blue double plug relay mounted next to the battery on the passenger fender wall. Pictured above.

Foul_Mouth · 01-22-2022, 12:53 PM

I have a ton of those relays, i grabbed a bunch back when d21s existed in junkyards around here. Pm me your addy and ill box one up if you need it.

jp2code · 01-23-2022, 12:30 AM

The blue one in the pic below should be the Neutral or Clutch interlock relay.

Those are safety devices that make sure you aren't an idiot when you try cranking the engine.

After mine failed on me twice, I cut the connectors off and just wired those 2 permanently together.

01-22-2022, 01:05 AM	#1
bsvsc Join Date: Jan 2022 Location: California Posts: 4 Vehicle: 87 hardbody Thanks: 3 Thanked 1 Time in 1 Post	Inhibit Relay Switch question - no start Hey everyone, I've been having a no crank no start issue since the other day. the truck died on me at the dump. I did some research and came to the conclusion that id test the inhibit switch, so I unplugged it, ran 2 jumper wires to complete the connection and she started right up. so I went down to napa and got a replacement (25230-89981)the replacement is a hair bigger and generic black but the layout is the same and the part numbers matched. when I plugged the new switch in it wasn't starting. tried jumper wires again and it starts. Is it possible I got a dead relay from napa? is there something else I should check that could be preventing the relay from getting power? I'm at a loss considering it fires up with those connections wire jumped.

01-22-2022, 03:00 AM	#4
Foul_Mouth Pounding Rox Truck Join Date: Mar 2010 Location: Western NY Posts: 4,842 Vehicle: Too Many to List Here Thanks: 592 Thanked 879 Times in 685 Posts	If it has an inhibitor relay it's auto. The relay is located by the window washer jug. __________________ 1992 Supercharged and Body Swapped WD21 Pathfinder 1995 D21 Regular Cab 2wd (2)1991 D21 Regular Cab 1990 WD21 Pathfinder Frame 2004 Xterra 2010 Infiniti G37x Nissan Truck Videos (Builds-Racing-Shows-Tech) https://www.youtube.com/c/NissanTruckguy IG@ rainmaker_d21

01-22-2022, 12:53 PM	#7
Foul_Mouth Pounding Rox Truck Join Date: Mar 2010 Location: Western NY Posts: 4,842 Vehicle: Too Many to List Here Thanks: 592 Thanked 879 Times in 685 Posts	I have a ton of those relays, i grabbed a bunch back when d21s existed in junkyards around here. Pm me your addy and ill box one up if you need it. __________________ 1992 Supercharged and Body Swapped WD21 Pathfinder 1995 D21 Regular Cab 2wd (2)1991 D21 Regular Cab 1990 WD21 Pathfinder Frame 2004 Xterra 2010 Infiniti G37x Nissan Truck Videos (Builds-Racing-Shows-Tech) https://www.youtube.com/c/NissanTruckguy IG@ rainmaker_d21

01-23-2022, 12:30 AM	#8
jp2code Software Developer Join Date: Dec 2011 Location: Longview, TX [USA] Age: 52 Posts: 11,133 Vehicle: 94 LB 2x4 Manual VG33e Thanks: 1,825 Thanked 1,784 Times in 1,556 Posts	The blue one in the pic below should be the Neutral or Clutch interlock relay. Those are safety devices that make sure you aren't an idiot when you try cranking the engine. After mine failed on me twice, I cut the connectors off and just wired those 2 permanently together. __________________ Joe (not a mechanic!) • Don't have an account? EMAIL ME Factory Service Manuals: https://www.nicoclub.com/FSM/Hardbody/ Walk-through: Checking Nissan Trouble Codes 1994 VG30E to VG33E with H256 Cams

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01-22-2022, 01:13 AM	#2
bsvsc Join Date: Jan 2022 Location: California Posts: 4 Vehicle: 87 hardbody Thanks: 3 Thanked 1 Time in 1 Post