OMC Fishing Boat Group D.S.I and Ace Industries color codes

Following, is a color code chart for OMC fresh-water boat accessory electrical manufactured before and after 1992. If the boat your are servicing was built prior to '92, you may have to use the color code chart on the right:

From '92 to the present Models prior to '92

Function Wire color / Stripe color Wire color / Stripe color

Fused + from battery Red Red

Negative from battery Black Black

Accessory + Orange/Black Orange/Black

Horn (signaling dev.) Orange/White Orange/White

Horn sw. + Orange Orange/White

Bow light (Nav) Gray/Black Gray/Black

Stern light (Anc) Gray Gray

Nav/Anc sw. + Orange/Gray Orange/Gray

Instrument lights Blue Blue

Courtesy light Blue or Blue/White Blue/Black

Compartment light Lt. Blue Lt. Blue/White

Court/Compart lt. sw. + Blue/Orange Orange/Blue

Bilge #1 - switched Brown Brown

Bilge #2 - switched Brown/Green Brown/Red

Bilge float sw. + Orange/Green Orange/Red

Bilge helm sw. + Brown/Orange Orange/Brown

Port/Fwd aerator pump Tan Brown/White

Port/Fwd aerator sw. + Tan/Orange Brn/Red/Orn

Port/Fwd aer timer sender Tan/Red N/A

Stbd/Aft aerator pump Brown/White Brown/Black

Stbd/Aft aerator sw. + Orange/Brown Brn/Red/Blk

Stbd/Aft aer timer sender Tan/Purple N/A

Port/Fwd recirc pump Tan/Blue Brown/Blue

Stbd/Aft recirc pump Brown/Yellow Brown/Yellow

Timer + 12V Red/Purple Brown/Orange

Timer pulsed output Brown/Black Tan/Purple

Timer 2 min. select Green Green

Timer 6 min select Yellow Red

Select or timer sw. neg. Yellow/Green Tan

Trim pump down Green/White Green/White

Trim pump up Blue/White Blue/White

Trim sw. + Red/White Red/White

Single fuel tank sender Pink Pink

Port fuel tank sender Pink/White Pink/White

Stbd fuel tank sender Pink/Black Pink/Black