DIY: Test Neutral and Reverse Switch
4 Attachment(s)
This DIY will show you how to easily test the neutral and reverse switch on a manual transmission.
1) Jack-up driver's side and support vehicle with jack stands. 2) On top of the transmission, about mid-line, you'll see four connectors... two white and two black. a) White connector = neutral switch 3) Remove both connectors for switch to be tested.b) Black connector = reverse switch 4) Use a multimeter, set to 'ohm', and attach a probe to each connector. 5) Have the shifter in neutral and observe multimeter's display: a) For the neutral switch, the readout should display numbers. 6) Now put the shifter into gear:Doesn't matter how much resistance you read, the inductive sensor just needs to "see" something. Attachment 158704 b) For the reverse switch, the readout should be "open" or no numbers displayed. Attachment 158706 a) For the neutral switch, you can shift into any gear 7) Observe the multimeter's display:b) For the reverse switch, you need to put it into reverse a) For the neutral switch, the readout should be "open" or no numbers displayed. 8) Reattach connectors. It doesn't matter if you swap the connectors, just as long as the colors match (white to white, black to black).Attachment 158705 b) For the reverse switch, the readout should display numbers. Attachment 158707 |
Ok, seems to be a good place for this question. Is there any kind of reverse lockout that is supposed to be active while driving? I have occasionally ground reverse instead of going into 6th (I know, driver mod..). IF there is supposed to be a lockout, is it mechanical or electrical?
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1 Attachment(s)
Originally Posted by Sephitrask
(Post 3625557)
Is there any kind of reverse lockout that is supposed to be active while driving?
Attachment 158814 The shifter itself has a tab that sticks out and hits that hard stop, preventing you from going into reverse. This is why you have to press down on the shifter to get it into reverse... you're moving that tab under the hard stop. Might be best to pull-up your center console and look at it... see what it looks like. |
Yep Jonathon is right ..again..;)...as always...:)
I would buy you a beer or put a prawn (shrimp) on the BBQ if you ever came Down Under.....YOU are a Great help to all here, you give great advice.. The Series 2 RX-8 is similar, except Reverse is PUSH DOWN and Left UP. Sephitrask, Don't know how you are getting Reverse Gear unless you are pushing down when shifting or your Tab (Mazda # Y601-17-571A WOW $53 ) is also worn or busted as Jon shows?? |
Originally Posted by ASH8
(Post 3625642)
Yep Jonathan is right.....
I know... being picky...
Originally Posted by ASH8
(Post 3625642)
I would buy you a beer or put a prawn (shrimp) on the BBQ if you ever came Down Under
Though seeing as I've never been further west than Ohio (where I live), that shows you how I am with traveling :lol2:
Originally Posted by ASH8
(Post 3625642)
The Series 2 RX-8 is similar, except Reverse is PUSH DOWN and Left UP.
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testing
Originally Posted by Jon316G
(Post 3623981)
This DIY will show you how to easily test the neutral and reverse switch on a manual transmission.
1) Jack-up driver's side and support vehicle with jack stands. 2) On top of the transmission, about mid-line, you'll see four connectors... two white and two black. a) White connector = neutral switch 3) Remove both connectors for switch to be tested.b) Black connector = reverse switch 4) Use a multimeter, set to 'ohm', and attach a probe to each connector. 5) Have the shifter in neutral and observe multimeter's display: a) For the neutral switch, the readout should display numbers. 6) Now put the shifter into gear:Doesn't matter how much resistance you read, the inductive sensor just needs to "see" something. Attachment 158704 b) For the reverse switch, the readout should be "open" or no numbers displayed. Attachment 158706 a) For the neutral switch, you can shift into any gear 7) Observe the multimeter's display:b) For the reverse switch, you need to put it into reverse a) For the neutral switch, the readout should be "open" or no numbers displayed. 8) Reattach connectors. It doesn't matter if you swap the connectors, just as long as the colors match (white to white, black to black).Attachment 158705 b) For the reverse switch, the readout should display numbers. Attachment 158707 |
Originally Posted by Tony Watlington
(Post 3687215)
since im trying this with the tranny still installed are you testing the male or female ends.
You can easily follow the wire from the neutral switch since its a couple inches away. |
Lets Clear this one up First....
The Reverse and Neutral Switches on Series 1 RX-8 6 Speed Manuals ARE NOT the same. Mazda NAO have corrected their erroneous superseding which cause so much confusion for many years.. Y611-17-640A Neutral and Park Switch Y612-17-640B Reverse- Back-up switch Auto's do not use these switches they have a single larger unit incorporating gear selection switch...called an Inhibitor Switch |
Originally Posted by tkepper
(Post 4083509)
I know everyone flames to search, but the features even in advance search did not help me find my answers. New to the community here, but it seems to be very quick to flame new people toward searches, that in my experience do not yield good results.
Comments like this could prevent people from helping you and welcomes argumentative members to crap all over this thread. |
Could my reverse switch be stuck if my reverse lights dont turn off even when ye car is off?
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Originally Posted by camilo
(Post 4176625)
Could my reverse switch be stuck if my reverse lights dont turn off even when ye car is off?
1) Have you recently done work with the reverse lights such as changing the bulbs? 2) Do you have an MT or AT? |
Man I just got the code p0850 and im goin to try this. Love searchng and finding how to do it right thanks again, Grasshopper lol (jon ) you always have a good answer to a fix or how to look and see if you need to change or test something,.
Thanks |
thanks jonathan. this was very helpful.
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Thanks very much for the pics! Just had to do this last weekend.
Now, how hard is it to replace the reverse switch? Edit: Turns out it was pretty easy... |
Does anyone know how to remove the neutral switch when the transmission is still on the car? I was trying to look for a socket like the O2 sensor socket that is 26mm, but no luck...any advice is welcomed.
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Originally Posted by xAgyex
(Post 4715234)
Does anyone know how to remove the neutral switch when the transmission is still on the car?
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3 Attachment(s)
***View this on my thread it looks better****
So I was able to fix the neutral switch on my own with the transmission in the car. Tigth fit but with Husky's Universal Pass-Through sockets it was a breeze. Order from Mazmart.com RX-8 Neutral & Park Switch (2004-2008) - Manufacturer part number: Y612-17-640B - $95 part+2 day shipping Also pickedup Husky Universal Pass-Through socket set, used then returned it back to home depot...all within 2 hours. You need a 27mm Pass-Through socket. - $130 (But I returned it so $0) 1. Jack up the driver front side of the car. 2. Support with Jack stand for safty. 3. Locate the neutral switch shown below Attachment 287034 4. Disconnect 2 white clips 5. Thread clips through pass-through socket - 27mm 6. Carefully remove neutral switch 7. Install new switch 8. Remove jack stand and jack 9. Clear the CEL P0850 code 10. Have a bear and then go for a ride Attachment 287035 New on left vs Old on right Attachment 287036 ***If your car is idling weirdly and using a lot of gas and you got CEL P0850, do your self a favor and replace the neutral switch asap.*** |
Originally Posted by Jon316G
(Post 4715272)
Think a crowfoot wrench would be your best bet.
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Hi,
I have question about reverse switch. Is there any chance to search reverse switch, or any cable connected to it, from interior? I want install parking camera to RX-8. The camera is connected to reverse lights. The LCD for this camera is connected with camera wirelessly. The LCD is connected to +12V cable to lighter. But the receiver (for camera signal) heated and I want connect the receiver for +12V cable, which has heads to/from reverse switch or any cable, which in voltage only, if i have shift into reverse. Is any chance to do it without decompose transmission from car? Could you anybody send me photo of position of it or write me a instructions? Thank you for help. PS: Sorry, i forgot send info about rx-8. So itīs Mazda RX-8 2004, Automatic 4-level transmission (141 kW) |
Very old thread, but just an FYI to add on here: On the S2 transmission, the black connector is the neutral, and the grey is the reverse, so kind of the opposite of the S1 trans.
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Originally Posted by Killawatts
(Post 4959133)
Very old thread, but just an FYI to add on here: On the S2 transmission, the black connector is the neutral, and the grey is the reverse, so kind of the opposite of the S1 trans.
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Originally Posted by andrewhelmus
(Post 4964527)
Just wanted to share my appreciation for your input in this thread! Saved me a headache while doing a S2 transmission swap into my S1. Thanks!
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Originally Posted by xAgyex
(Post 4715234)
Does anyone know how to remove the neutral switch when the transmission is still on the car? I was trying to look for a socket like the O2 sensor socket that is 26mm, but no luck...any advice is welcomed.
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yep
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hi, I need your help....I recently changed the S2 Transmission, but Neutral Switch is no work,
I want to know Neutral Switch of S2 is the same as S1? |
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