Turn signal and hazard flashers are incorporated in an electronic flasher unit installed in or near the passenger comartment fuse block and can be located by listening for the clicking when the signals are on. If the flasher unit from the previous operation is healthy, it should create a sound of click during the operation, and if all the turn signal bulbs are flashing in one direction only then it should be considered as a bad turn signal bulb. If both turn signals do not blink, then there could be a problem with the turn signal fuse, the turn signal flasher, the switch or loose or open wiring; checking the fuse box can reveal a turned off turn signal fuse, as for wiring it should be checked for shorting before replacing it. On the year 2006 and models older than that, it is fairly easy to replace the flasher and to do this, one just has to un-clip it from the relay terminal which is situated above the fuses near the drivers' side of the bulkhead, the replacement should however have to be in a similar model as that of the previous unit and the process of installation is done in the reverse order to the removal process. A bulb check for the models made between 2007 and 2010 is done by pulling the wiring connector off the flasher, and then removing the mounting screw you will find is easy to perform, installation also follows the same process of removal. For the 2011 and later models, a Smart Junction Box (SJB) is deployed and manages other circuits like turn signals, and hazard; if the overall circuitry is a problem, replace the exterior light bulbs and switches, and if no reliefs are gotten, then check and read the SJB with a scan tool. To remove the SJB; first, remove the knee bolster, remove ground by removing the negative battery terminal, then detach the electrical connectors, and finally remove the SJB mounting nuts/bolts, and electrical connectors lastly, to install, reverse the process.
