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Old 08-15-2012, 10:42 PM
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Ignition Switch Wiring

Gentlemen,
Could use some help and advise!!

I'm helping a neighbor with his 1988 Tristar (351ci). Replacing the existing ignition (original??) switch with a Sierra 4 position replacement switch. The post designatoins on the new switch are easy to decipher however, the post identifications on the existing one are somewhat confusing.

On the new switch we have:
S = Soleniod
I = Ignition
A = Accessory
B = Battery

On the existing switch (not sure if it's original or not), we have:
BAT = assuming Battery (Yellow and Orange wires)
CC = ? (Light Red wire)
CV = ? (Purple/Red wire)
ST = ? (Yellow wire with Red Stripe)
The colors on the wires are kind of faded so the descriptions may be a best guess.

Electrical is not my strong suit. Can anyone tell me what posts on the old switch correspond with the posts on the new switch??

Thanks!!!
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Old 08-16-2012, 12:02 AM
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BAT = B
ST = S
Not sure on CC & CV. But to figure it out, turn the key to Accessory and measure the voltage on the terminals. The one that corresponds to "A" will have 12V, the one that corresponds to "I" will not. If you then turn it to ON and both should show 12V.

OR

If the switch is out of the boat, and not connected, check continuity between those terminals and BAT. In accessory position you will have continuity between BAT and only one of the terminals, but in ON position you will have continuity between BAT and both CV & CC.
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Old 08-16-2012, 12:43 AM
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I am pretty sure that the purple wire is accessory.
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Old 08-16-2012, 12:46 AM
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Quote:
Originally Posted by tr6coug View Post
BAT = B
ST = S
Not sure on CC & CV. But to figure it out, turn the key to Accessory and measure the voltage on the terminals. The one that corresponds to "A" will have 12V, the one that corresponds to "I" will not. If you then turn it to ON and both should show 12V.

OR

If the switch is out of the boat, and not connected, check continuity between those terminals and BAT. In accessory position you will have continuity between BAT and only one of the terminals, but in ON position you will have continuity between BAT and both CV & CC.
......or get a keyless push button starter switch kit from tr6coug at www.wakeblaster.com

Mine works great and no keys.......
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Old 08-16-2012, 12:59 AM
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Wiring Color Codes: From ABYC E-11 Table XIV and Table XV.

Green DC Grounding Conductor Bonding Wires (insulated)
Yellow or Black DC Negative Conductor Negative Mains
Red DC Positive Positive Mains
Yellow/Red Starting Circuit Starting Switch to Solenoid
Brown/Yellow Bilge Blowers Fuse or Switch to Blower
Dark Gray Navigation Lights Circuit Breakers or Switch To Lights
Dark Gray Tachometer Tachometer Gauges and Senders
Brown Generator Armature Generator Armature to Regulator
Brown Alternator Charge Light Generator Terminal or Alternator Aux Terminal to Regulator
Brown Pumps Circuit Breakers or Switch to Pumps

Orange Accessory Feed Amp Mtr to Alt or Gen Output & Acc Circuit Breaker & Switches
Orange Common Feed Distribution Panels To Accessory Switches
Purple Ignition Ignition Switch to Coil & Electrical Instrument
Purple Instrument Feed Distribution Panel To Electrical Instruments
Purple Main Power Feed Positive Mains (particularly un-fused)
Dark Blue Cabin and Instruments Circuit Breakers or Switch to Lights
Light Blue Oil Pressure Oil Pressure Gauges & Senders
Tan Water Temp Water Temp To Sender To Gauge
Pink Fuel Gauge Fuel Gauge Sender to Gauge
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Old 08-16-2012, 10:38 PM
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Many thanks Gentlemen!
I think I'll be able to square it away with this info!!
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