Headlight Relay Wiring Diagrams
Headlights: Headlight wiring upgrade. Use Halogen lights with your old wiring harness. - Figure A. Typical headlight wiring diagram - Figure B. Typical relay wiring diagram - Figure C. Typical relay pin-out diagram - Figure D . Power Seats: C. 57-64 GM (a mix of 2-way, 4-way & 6-way) -Figure A D. 57-64 GM - Figure A . Generator & Alternators
GM Headlight Switch Circuit Functions. GM Headlight Switch Circuit Descriptions: 0. Ground output wire through the rheostat. 1. 12 volt battery unfused feed into H/L switch circuit breaker • Feeds power to #7 when headlight switch is in "Park lights on" position.
WIRING DIAGRAMS. 1988 Jeep Cherokee. 1988 Wiring Diagrams Jeep. Cherokee & Wagoneer. IDENTIFICATION. COMPONENT LOCATION MENU. COMPONENT LOCATIONS TABLE. Component Figure No. (Location) A/C & Htr Systems 5 (A-D 16-19) Alternator 1 (C 3) Audio Alarm Module 7 (D 27) Back-Up Lt Sw (M/T) 4 (D 12) Battery 1 (A 2) Beam Sel Sw 6 (E 23)
I'm not doing things quite by the book so my wiring is different from the standard wiring. I'm running my park and headlight circuits through some relays and controlling them by grounding the circuit at the light switch. I'll just document the switch's standard function here to avoid confusion: Schematic of the light switch
Following the above diagram… Relays. Attach the high beam circuit feed from the headlight switch to the 86 terminal on the high beam relay. Attach the low beam circuit feed from the headlight switch to the 86 terminal on the low beam relay. Attach the new high power feed wire to the 30 terminal on both relays.
Upgrading your headlights with Bosch Relays for brighter lights As part of the wiring upgrades on my car, I'm also installing a set of headlight relays to take some of the load off of the OEM wiring setup so that the headlights will run brighter. This is accomplished with relays, which use the original headlight power wires as switching leads only.