2004 Frontier Turn Signal And Hazard Fuses Blowing

These vehicles were known for faulty hazard switches. They would cause an intermittent turn signal flash when you hadn't activated turn signals or they would prevent the turn signals from working at all. Operate the hazard switch and see if the turn signals work again. If so, replace the hazard switch

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:

You probably need a turn signal / hazard flasher module located in the under hood fuse box. These go out all the time .
Turn Signal/Hazard Lamps
The IGN E 10-amp fuse in the underhood fuse block supplies battery positive voltage to the turn signal/hazard switch assembly. The FLASH 25-amp fuse in the instrument panel (I/P) fuse block supplies battery positive voltage to the turn signal/flasher module and ground is supplied at G200. 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 sign/flasher module. When the hazard flasher switch is activated, a ground signal is completed from the turn signal/hazard switch to the turn sign/flasher module. The turn sign/flasher module then sends an on-off voltage signal through the LT TRLR, RT TRLR, LT TURN or RT TURN 10-amp fuses in the I/P fuse block to the appropriate turn signal or to all 4 fuses for hazard operation. The instrument panel cluster (IPC) indicators receive voltage from the LT TURN and RT TURN fuses as well as the driver door module (DDM)/passenger door module (PDM) for the mirror turn signals. The DDM/PDM has no function or control of the mirror turn signals other that a pass through connection for the circuits. The audio chime is also activated when the turn signals are ON. When the hazard switch is pressed, all turn signal lamps will flash including both IPC turn indicators. The front turn signals are grounded at G100. The rear turn signals are grounded at G401. The Mirror turn signals are grounded by the DDM/PDM.

replace hazard light relay ,and hazard light switch if needed.

Could be one of a few things. Head light switch bad, hazard light switch/relay could be the problem or your turn signal switch.

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...

did both signal lights stop working at the same time or not,it may just be the signal flasher has gone bad,it is located under the dash by the fuse panel.if the hazard flashers work then i would say the signal flasher is bad.with the hazards on you can locate it and that is what the signal flasher looks like and it is a separate flasher,

Most likely you have a bad relay. Relay's typically control more than 1 source or part, and you will usually find the relay inside of the Hazard switch itself. Call your local Nissan dealer and run that by them to make sure thats common for that model too. If so, picking up a new Hazard switch should be relativley cheap and easy!

you have a bad flasher there are two of them

multifunction switch, on the column the one that the hazard and turn signals and brights are attached too