Lighting System

Submitted by xjcdadmin on Tue, 06/25/2013 - 15:02
Model(s)

Circuit diagram

Lighting system tests and checks

The battery provides power for operation of the headlight, taillight, and meter lights. If none of the above operates, always check battery voltage before proceeding further. Low battery voltage indicates either a faulty battery, low battery electrolyte, or a defective charging system. See page 6-9 "CHARGING SYSTEM" for checks of battery and charging system. Also check fuse condition. Replace any "open" fuses. There are individual fuses for various circuits (see complete Circuit Diagram).

NOTE: Check the headlight bulb first before performing the following check.

1. Headlight does not come on. (High and/or low beam)

Check for voltage (12V) on "R/Y" lead at "LIGHTS" switch connector.

No voltage

Check wiring circuit from fuse to "LIGHTS" switch connector.

Voltage OK 

   

Check for voltage (12V) on "L/B" lead at "LIGHTS" (Dimmer) switch connector.

No voltage

Check "LIGHTS'* switch and wiring circuit from "LIGHTS" switch to "LIGHTS" (Dimmer) switch connector.

Voltage OK 

   

Check for voltage (12V) on "Y" or "G" leads at headlight bulb socket.

No voltage

"LIGHTS" (Dimmer) switch and/or wiring circuit from "LIGHTS" (Dimmer) switch to headlight bulb socket is faulty Repair.

2. Taillight does not come on.

When the "LIGHTS" switch is "PO" or "ON" and the main switch is "ON" or "P" positions.

Check for voltage (12V) on "L" lead at "LIGHTS" switch connector

No voltage
 
Voltage OK     

Check for voltage (12V) on "L" lead at main switch connector.

No voltage

Wiring circuit from "LIGHTS" switch to main switch connector is faulty, repair.

Voltage OK     

Check for voltage (12V) on "L/R" lead at main switch connector.

No voltage

Main switch is faulty, replace

Voltage OK 

   

Check for voltage (12V) on "L" lead at taillight bulb socket.

No voltage

Wiring circuit from main switch to taillight bulb socket is faulty. repair.

3. Auxiliary light does not come on.

When the "LIGHTS" switch is "PO" or "ON" and the main switch is "ON" or "P" position.

Check for voltage (12V) on "L" lead at "LIGHTS" switch connector.

No voltage

"LIGHTS" switch is faulty, replace.

Voltage OK     

Check for voltage (12V) on "L" lead at main switch

connector.

No voltage

Wiring circuit from "LIGHTS" switch to main switch connector is faulty, repair.

Voltage OK     

Check for voltage (12V) on "L/R" lead at main switch connector.

No voltage

Main switch is faulty, replace.

Voltage OK     

Check for voltage (12V) on "L/R" lead at auxiliary light bulb socket.

No voltage

Wiring circuit from main switch to auxiliary light bulb socket is faulty, repair.