Left turn signal and left Hazard light blow fuse

Check it by using your hazard lights. If they flash, the relay is OK and you have a woring issue.

Do you know what a DVOM - digital volt ohmmeter is ? How to use wiring diagrams to test electrical circuits with DVOM? Do you know how the turn signals work ? What controls them ? More then likely it's a problem with turn/hazard flasher module.

Turn Signal/Hazard Lamps
The IGN E 10 A fuse in the underhood fuse block supplies battery positive voltage to the turn signal switch assembly. Ground for the hazard switch is from G302. The FLASHER 15 A fuse in the underhood fuse block supplies battery positive voltage to the turn/hazard flasher module. When the turn signal switch is placed in either the left or right position, a voltage signal is completed from the turn signal switch to the turn/hazard flasher module. When the hazard flasher switch is activated, a ground signal is completed from the hazard switch to the turn/hazard flasher module. The turn/hazard flasher module then sends an on-off voltage signal to the appropriate turn signal lamps, or to all turn signal lamps for hazard operation through these fuses:

When the ignition switch is in the RUN or the START position, voltage is applied through the TURN/LPS fuse to the normally closed contacts of the hazard switch. A single flasher in the hazard switch performs the following functions:
• The turn signal operation
• The hazard flasher operation
When the turn signal switch is in the LEFT position, voltage is applied to the following components:
• The left turn indicator
• The left front park/turn lamp
• The left rear turn lamp
The lamps immediately turn on and flash as the flasher opens and closes the circuit. If a bulb is in need of replacement, the turn lamps will flash at twice the normal rate.
Without testing i would probably say the flasher is bad .
do the four ways work ?

You need to check the power with an electrical screwdriver. Start with the turn signals. Did the bulbs blow.? If so there is a serious electric fault and it will get worse. Has the jeep been through flooding? Thearth connections may be damp. You may need to use a hair dryer to fix them.

Diagnose Turn Signal Problems eHow

The simple, and most likely, cause of this problem is a blown fuse in the turn signal circuit. Normally, the turn signal lamps are activated by a single-pole double-throw switch circuit on your 325ci's steering column. That switch is also called turn signal switch and, as you know, you activate it by pressing up or down on the turnstalk (the lever usually on the left side of the steering wheel).

The hazard light circuit is a double-pole single-throw circuit that gangs the right and left turn signal circuits into one and then activates the front and rear signals as your 325ci's hazard lights.

Since they use the same circuits, the fuse is common to both and if it is blown then neither the turn signals nor the hazard lights will work.

you have to check for a short in the circuit.

The first place to start are fuses, check your owners manual for location, typically left side of dash.

The emergency (hazard) flashers and turn signals are on separate fuses and run through the hazard switch. If all the lights work when the hazard switch is on then the problem will likely be a blown turn signal fuse.

Other possibilities are the hazard switch itself is bad, the turn signal switch is bad or a broken wire, all of which require a meter (or test light) wiring diagram and knowledge of the circuit to test it - better to have it done.

Robert Grove
Mobile Mechanic Malibu 310 651 8020 Auto Truck RV Mobile Repair...

1. Check the fuse make sure it is not busted and also use a designated amp only.
2. Check the bulb and the wires also.