ignition switch power ? stumped

dabranco · 12-01-2011, 11:40 PM

Sounds like a short with that wire, I would follow it and see where it leads, or your interlock switch failed (black and red wire), or antitheft system failed or engaged it self (black and green wire). I am looking at an 86 RX7 diagram as well if it is a different year please post and I will get you the correct wire colors.

db86na · 12-02-2011, 12:04 AM

the car is an 86 i have bypassed the interlock switch and i have no anti theft system it is bypassed also

dabranco · 12-02-2011, 12:13 AM

Did you check the circuit breaker relay?

db86na · 12-02-2011, 12:40 AM

theyy were fine didnt need reset

dabranco · 12-02-2011, 12:42 AM

Whats your volts when the switch is in the run position?

db86na · 12-02-2011, 12:45 AM

0 switch only has volts on the off position

Raksj04 · 12-02-2011, 08:04 AM

where are you taking the reading at?

db86na · 12-02-2011, 10:38 AM

im am testin volts on the w/r wire on the back of the ignition switch its got 12v in the off position but is says .50v on acc and 0 on start

Raksj04 · 12-02-2011, 10:42 AM

just for giggles meter at the battery and see what happens. If the volts drop way off you may have a short.

My5ABaby · 12-02-2011, 11:17 AM

I still assert that you have a bad connection at either the battery or a ground. Check your voltage there when you try to start and at the main relay in the engine bay. I believe it's labeled XM-1 in the wiring diagram.

Raksj04 · 12-02-2011, 11:29 AM

I thought I have metered my car at the switch before and have similar results but the car started. post a pic of where you are metering if you can.

dabranco · 12-02-2011, 01:26 PM

The only thing it can be at this point is crossed wire, failed relay(s), or a bad connection(s), or short(s).

db86na · 12-04-2011, 03:16 PM

ok so ive been tracing wires checking connections and grounds all are clean, i opend up the ignition switch that was told was working condition and it was rusted to hell so i orderd a brand new switch from mazda, how is it possible that all 4 ignition switches are bad and showing the same volts in the acc position and run position .

Whizbang · 12-04-2011, 06:13 PM

perhaps a design fault?

Raksj04 · 12-04-2011, 06:16 PM

you could jump wires and see if that works

12-01-2011, 11:40 PM	#16
dabranco Rotary Fan in Training Join Date: Nov 2011 iTrader: (1) Posts: 47 Rep Power: 0	Sounds like a short with that wire, I would follow it and see where it leads, or your interlock switch failed (black and red wire), or antitheft system failed or engaged it self (black and green wire). I am looking at an 86 RX7 diagram as well if it is a different year please post and I will get you the correct wire colors. Last edited by dabranco; 12-01-2011 at 11:44 PM..

12-02-2011, 11:17 AM	#25
My5ABaby Sigh..... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (6) Posts: 2,377 Rep Power: 19	I still assert that you have a bad connection at either the battery or a ground. Check your voltage there when you try to start and at the main relay in the engine bay. I believe it's labeled XM-1 in the wiring diagram. __________________ 1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present."

12-04-2011, 06:13 PM	#29
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	perhaps a design fault? __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

12-02-2011, 12:04 AM	#17
db86na Rotary Fan in Training Join Date: Nov 2011 Location: spokane wa iTrader: (0) Posts: 47 Rep Power: 0	the car is an 86 i have bypassed the interlock switch and i have no anti theft system it is bypassed also

12-02-2011, 12:13 AM	#18
dabranco Rotary Fan in Training Join Date: Nov 2011 iTrader: (1) Posts: 47 Rep Power: 0	Did you check the circuit breaker relay?

12-02-2011, 12:40 AM	#19
db86na Rotary Fan in Training Join Date: Nov 2011 Location: spokane wa iTrader: (0) Posts: 47 Rep Power: 0	theyy were fine didnt need reset

12-02-2011, 12:42 AM	#20
dabranco Rotary Fan in Training Join Date: Nov 2011 iTrader: (1) Posts: 47 Rep Power: 0	Whats your volts when the switch is in the run position?

12-02-2011, 12:45 AM	#21
db86na Rotary Fan in Training Join Date: Nov 2011 Location: spokane wa iTrader: (0) Posts: 47 Rep Power: 0	0 switch only has volts on the off position

12-02-2011, 08:04 AM	#22
Raksj04 I have Ultra power in me. Join Date: Sep 2011 iTrader: (2) Posts: 457 Rep Power: 14	where are you taking the reading at?

12-02-2011, 10:38 AM	#23
db86na Rotary Fan in Training Join Date: Nov 2011 Location: spokane wa iTrader: (0) Posts: 47 Rep Power: 0	im am testin volts on the w/r wire on the back of the ignition switch its got 12v in the off position but is says .50v on acc and 0 on start

12-02-2011, 10:42 AM	#24
Raksj04 I have Ultra power in me. Join Date: Sep 2011 iTrader: (2) Posts: 457 Rep Power: 14	just for giggles meter at the battery and see what happens. If the volts drop way off you may have a short.

12-02-2011, 11:29 AM	#26
Raksj04 I have Ultra power in me. Join Date: Sep 2011 iTrader: (2) Posts: 457 Rep Power: 14	I thought I have metered my car at the switch before and have similar results but the car started. post a pic of where you are metering if you can.

12-02-2011, 01:26 PM	#27
dabranco Rotary Fan in Training Join Date: Nov 2011 iTrader: (1) Posts: 47 Rep Power: 0	The only thing it can be at this point is crossed wire, failed relay(s), or a bad connection(s), or short(s).

12-04-2011, 03:16 PM	#28
db86na Rotary Fan in Training Join Date: Nov 2011 Location: spokane wa iTrader: (0) Posts: 47 Rep Power: 0	ok so ive been tracing wires checking connections and grounds all are clean, i opend up the ignition switch that was told was working condition and it was rusted to hell so i orderd a brand new switch from mazda, how is it possible that all 4 ignition switches are bad and showing the same volts in the acc position and run position .

12-04-2011, 06:16 PM	#30
Raksj04 I have Ultra power in me. Join Date: Sep 2011 iTrader: (2) Posts: 457 Rep Power: 14	you could jump wires and see if that works