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RX8 wiring manual

Old 01-04-2005, 03:17 AM
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RX8 wiring manual

Hi, I need the manual for installing alarm.. can anyone help me out? thanks bro!
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Old 01-04-2005, 05:03 AM
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Originally Posted by [email protected]
Hi, I need the manual for installing alarm.. can anyone help me out? thanks bro!
Rosenthal has one for $54USD. Go here:

http://www.finishlineperformance.com...intenance.html

EDIT: If you know what sections of the manual you need, I can copy them for you. There is also a shop manual available on CD on eBay for a few bucks, but I don't know if it is a good as the hard copy available from Mazda. It does have a wiring diagram, though.

Last edited by Go48; 01-04-2005 at 06:09 AM.
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Old 01-04-2005, 09:29 AM
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Thanks alot Go48!! basically i need the diagram for all those small cables under the steering wheel.. do u think u can send me a copy? that would be very nice! thanks alot bro!
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Old 01-04-2005, 09:58 AM
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I need the wiring at the IAT sensor on the air intake to tell which five wires is IAT
Thanks
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Old 01-04-2005, 09:59 AM
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Originally Posted by [email protected]
Thanks alot Go48!! basically i need the diagram for all those small cables under the steering wheel.. do u think u can send me a copy? that would be very nice! thanks alot bro!
Unfortunately, the wiring diagrams don't work that way. They are all schematics with the individual diagrams associated mainly with particular devices or systems. So there is no diagram for wires in a specific place in the car. I will attach an overall diagram that may or may not be of any use.
Attached Thumbnails RX8 wiring manual-wd.jpg  
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Old 01-04-2005, 10:54 AM
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you've done so much!! thanks alot bro!
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Old 01-04-2005, 11:54 AM
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Originally Posted by MDRX8
I need the wiring at the IAT sensor on the air intake to tell which five wires is IAT
Thanks
OK, save me the task of figuring out what IAT stands for and I will copy the appropriate diagram.
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Old 01-04-2005, 12:52 PM
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Intake Air Temp. part of the sensor on the air intake tube

Thanks
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Old 01-04-2005, 02:19 PM
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Originally Posted by MDRX8
Intake Air Temp. part of the sensor on the air intake tube

Thanks
The wiring diagram does not show the IAT per se, but according to my interpretation of the section on the MAF system, the IAT is a part of that system. So, I have attached the wiring diagram for the MAF and the diagram showing where it connects into the PCM. I have also attached the 2 pages in the shop manual that lead me to believe that the IAT is integrated into the MAF system. Good luck with your project.
Attached Thumbnails RX8 wiring manual-maf-iat_1.jpg   RX8 wiring manual-maf-iat_2.jpg   RX8 wiring manual-maf-iat_3.jpg   RX8 wiring manual-maf-iat_4.jpg  
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Old 01-05-2005, 10:10 AM
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Hey Go48, the wiring diagram is realli cool but do u think that u can make it bigger and easier to read? thanks alot bro.
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Old 01-05-2005, 10:47 AM
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Originally Posted by [email protected]
Hey Go48, the wiring diagram is realli cool but do u think that u can make it bigger and easier to read? thanks alot bro.
The size of an attachment to a posting in this forum is limited to 200KB. So it will not be possible to send anything through this forum any "larger" than what I sent. If you want a larger image you can copy the image from the forum to your HD and use an image viewing program to enlarge and rotate the image. As an alternative, send me a PM with your e-mail address and I'll send you a higher resolution and/or larger physical size of the image.
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Old 01-05-2005, 11:28 AM
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Thanks!
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Old 10-17-2012, 04:34 PM
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i dont suppose you have the diagram for the room fuse do you? i keep blowing it after a breakdown and im grasping at straws...
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Old 09-17-2014, 05:47 PM
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Originally Posted by Go48 View Post
Unfortunately, the wiring diagrams don't work that way. They are all schematics with the individual diagrams associated mainly with particular devices or systems. So there is no diagram for wires in a specific place in the car. I will attach an overall diagram that may or may not be of any use.
Is this correct for 6port manual? 2005 model s1
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Old 09-17-2014, 05:57 PM
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There will be differences in the keyless entry and some of those systems...but the other basic stuff will be basically the same...hope that helps

If you want the .pdf send me a PM
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Old 09-29-2014, 08:13 AM
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If anybody is reading this and looking to install an alarm/remote start/etc, don't suffer sorting through all these schematics.

2005 Mazda RX-8 DirectWire Vehicle Information


Item Wire Color Polarity Wire Location

12 Volts green (30A) or orange (30A) + driver kick fuse box
Second 12 Volts yellow (x3) (common 15A) + ignition switch, white 6 pin plug, pins E and F
Starter white/blue + ignition switch, white 6 pin plug, pin A
Second Starter N/A
Ignition black/yellow + ignition switch, white 6 pin plug, pin C
Second Ignition N/A
Third Ignition N/A
Accessory blue/green + ignition switch, white 6 pin plug, pin B
Second Accessory white/red + ignition switch, white 6 pin plug, pin D
Third Accessory N/A
Keysense pink/black + ignition key switch, wht 2 pin plug, pin B or KCM, 24 pin plug, pin F
The KCM (Keyless Control Module) is above the passenger kick.
Data Bus blue/orange (TX), yellow/black (RX) data PATS Transceiver around ign key sw, white 4 pin plug, pins B and A
The PATS ignition is black/white in pin D, and ground is black in pin C.
Can Bus High blue/white (HS CAN) data data link connector, black 16 pin plug, pin 6
Can Bus Low green/black (HS CAN) data data link connector, black 16 pin plug, pin 14
Can Bus Sw N/A
Power Lock lt. green -1000 ohms driver kick or KCM, 24 pin plug, pin V
The KCM (Keyless Control Module) is above the passenger kick.
Power Unlock same as power lock -
Lock Motor red/blue 5 wire driver kick or KCM, 6 pin plug (1), pin D
The KCM (Keyless Control Module) is above the passenger kick.
Driver Unlock Motor red/black 5 wire driver kick or KCM, 6 pin plug (1), pin C
The KCM (Keyless Control Module) is above the passenger kick.
Parking Lights (-) lt. green - headlight switch, white 17 pin plug, pin L
Parking Lights (+) black/red + driver kick, harness to rear
Hazards orange - hazard switch or KCM, 24 pin plug, pin I
The KCM (Keyless Control Module) is above the passenger kick.
Turn Signal (Left) green/yellow + turn signal switch, white 17 pin plug, pin A
Turn Signal (Right) black/red + turn signal switch, white 17 pin plug, pin E
Headlight yellow/red - headlight switch, white 17 pin plug, pin J
AutoLights N/A
Reverse Light red/yellow + driver kick, harness to rear
Left Front Door Trigger white/red - driver kick, harness to rear
Right Front Door Trigger black/blue (will also detect driver door) - driver kick or KCM, 24 pin plug, pin K
The KCM (Keyless Control Module) is above the passenger kick.
Left Rear Door Trigger same as right front door trigger
Right Rear Door Trigger same as right front door trigger
Dome Supervision green/black - driver kick or KCM, 6 pin plug (1), pin B
The KCM (Keyless Control Module) is above the passenger kick.
Trunk/Hatch Pin brown - driver kick or KCM, 24 pin plug, pin G
The KCM (Keyless Control Module) is above the passenger kick.
Rear Glass Pin N/A
Hood Pin purple/white - N.C. hood switch or KCM, 24 pin plug, pin D
The KCM (Keyless Control Module) is above the passenger kick.
Trunk/Hatch Release yellow - trunk lid opener switch or KCM, 24 pin plug, pin E
The KCM (Keyless Control Module) is above the passenger kick.
Trunk Release Motor blue + driver kick, harness to rear
Fuel Door Release N/A
Power Sliding Door (Left) N/A
Power Sliding Door (Right) N/A
Factory Alarm Arm green/red (driver door key cylinder) -1000 ohms driver kick or KCM, 24 pin plug, pin S
The KCM (Keyless Control Module) is above the passenger kick.
Factory Alarm Disarm same as factory alarm arm -
Disarm No Unlock use keysense
Trunk Alarm Shunt gray/red (trunk key cylinder) - driver kick or KCM, 24 pin plug, pin H
The KCM (Keyless Control Module) is above the passenger kick.
Tachometer lt. green/red or lt. green/black ac PCM, second plug from passenger side, pin M or J
The PCM (Powertrain Control Module) is in the passenger side front corner of the engine compartment.
Wait to Start N/A
Neutral Safety blue/red (M/T) - PCM, second plug from passenger side, pin O
The PCM (Powertrain Control Module) is in the passenger side front corner of the engine compartment.
Clutch Pedal lt. green/red + clutch switch, black 2 pin plug, pin B
Fuel Pump white/red + driver kick, harness to rear
Rear Defroster gray - latched A/C Amplifier under dr dash next to cntr console, 24 pin plug, pin K
Mirror Defroster same as rear defroster
Left Front Heated Seat blue + latched left seat warmer switch, black 6 pin plug, pin H
Right Front Heated Seat red + latched right seat warmer switch, white 6 pin plug, pin H
Speed Sense green/red ac radio, 24 pin plug, pin I
Brake Wire black/blue to black/yellow + brake switch or driver kick, harness to rear
Parking Brake gray - parking brake switch or instrument cluster harness
Horn Trigger green/orange - horn switch or KCM, 24 pin plug, pin C
The KCM (Keyless Control Module) is above the passenger kick.
Wipers blue/white (L), red (H), blue (ignition) + wiper switch, white 14 pin plug, pins K, O, and E

Last edited by firebirdude; 09-29-2014 at 06:54 PM.
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Old 10-01-2014, 04:58 AM
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Hello all, My apologies if this is the wrong thread. I have problem with starting the car as I turn on the ignition key the car boot automatically opened and the alarm sounded with no cracking of the engine. I suspect this could be a wiring issue. I hv just picked my rx8 back for engine replacement to rx7 engine with turbo. Any good pointers are very much appreciated.Tqvm.
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Old 10-03-2014, 08:55 AM
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Sounds like you need to take it back to the shop that did the engine swap.
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Old 10-04-2014, 03:05 AM
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Thanks Dude, I would hv thought the same but he is quite a distant away. Was able to drive it home with no problem but u never know bad things happened. Thought I could do a quick fix ��
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Old 10-04-2014, 08:20 AM
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No crank, but tripping the alarm MIGHT be a dead/low battery. But I've never heard of a low battery popping the boot.

Also, if you have one, try a different key. It's possible the transponder inside the key went dead. In which case, the car wouldn't start and the alarm would be triggered because it thinks the car is trying to be stolen. Again, haven't heard of this popping the boot.
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Old 10-05-2014, 02:58 AM
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Originally Posted by firebirdude View Post
No crank, but tripping the alarm MIGHT be a dead/low battery. But I've never heard of a low battery popping the boot.

Also, if you have one, try a different key. It's possible the transponder inside the key went dead. In which case, the car wouldn't start and the alarm would be triggered because it thinks the car is trying to be stolen. Again, haven't heard of this popping the boot.
Yep. Tried changed to a new battery.. Same thing.. Boot popped out when tried to crank the engine and the alarm went off. I only had one key! Already contacted the mechanic but he is away in Japan and only be back next tuesday.
Speaking of being stolen, good thing with fB, news spread like wildfire... found my wife's stolen car at the workshop for repair.. Went thro' a lot of hassle and eventually bringing in the cops to take the car away ( Appreciate for yr trying to help.
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Old 11-11-2014, 01:21 PM
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Hello guys.

Someone in an attempt to steal or damage my car, cut some cables beneath the steering wheel of my manual RX-8.







the first picture shows the plugs, right next to the brake cable.

the second picture shows the cables that lead to the brakes.

the third picture shows the cables right above the gas pedal that leads to this brown box.

Could someone who knows these things, tell me, which harness I should replace.

Is it the "under dashboard" harness or does it have to do with the engine harness?

Please help a fella out, I am totally dissapointed!
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Old 11-11-2014, 01:32 PM
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Call your insurance company :-)
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Old 11-11-2014, 01:34 PM
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I did it but insurance companies are non-existent and low-quality in Europe.

I wonder if someone knows which harness replaces all those cables.

I would be grateful to him!
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Old 11-11-2014, 01:37 PM
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That's all on the main harness...the engine harness is all in the engine bay.

It is a huge job to replace the main harness...it requires removing all the interior in the whole car and a lot of the engine bay
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