FOREWORD ELECTRIC WIRE CODE 12 ELECTRIC WIRE CODE 00 In the wiring diagrams, various colors and symbols are employed to indicate the thickness of wires. This wire code table will help you understand WIRING DIAGRAMS. Example: 05WB indicates a cable having a nominal number 05 and white coating with black stripe. CLASSIFICATION BY THICKNESS 00 CLASSIFICATION BY COLOR AND CODE 00 00-16 PC300LL-6 Nominal num- ber Copper wire Cable O.D. (mm) Current rat- ing (A) Applicable circuit Number of strands Dia. Of strand (mm) Cross section (mm) 0.85 11 0.32 0.88 2.4 12 Starting, lighting, signal etc. 2 26 0.32 2.09 3.1 20 Lighting, signal etc.
5 65 0.32 5.23 4.6 37 Charging and signal 15 84 0.45 13.36 7.0 59 Starting (Glow plug) 40 85 0.80 42.73 11.4 135 Starting 60 127 0.80 63.84 13.6 178 Starting 100 217 0.80 109.1 17.6 230 Starting Priority Circuits Classi- fication Charging Ground Starting Lighting Instrument Signal Other 1 Primary Code W B B R Y G L Color White Black Black Red Yellow Green Blue 2 Auxiliary Code WR — BW RW YR GW LW Color White & Red — Black & White Red & White Yellow & Red Green & White Blue & White 3 Code WB — BY RB YB GR LR Color White & Black — Black & Yel- low Red & Black Yellow & Black Green & Red Blue & Red 4 Code WL — BR RY YG GY LY Color White & Blue — Black & Red Red & Yel- low Yellow & Green Green & Yellow Blue & Yel- low 5 Code WG — — RG YL GB LB Color White & Green — — Red & Green Yellow & Blue Green & Black Blue & Black 6 Code — — — RL YW GL — Color — — — Red & Blue Yellow & White Green & Blue —