SOURCE: hazards and blinkers not working
There are separate fuses for the turn signals and blinkers, but you should check both of them just to see if they're good.
You may have a burnt out turn signal bulb as well. I know that this sounds like an obvious answer, but a single bulb can sometimes disable the entire system because of the way that some flashers operate.
You could also have a defective turn signal/hazard light flasher. This is located under the dash board on the driver's side between the steering column and the door. You have to remove the sound insulation/kick panel (the cover on the bottom of the dash board) to reach the flasher (it is easy to remove - I don't think you even need tools).
SOURCE: All my blinkers and brake lights stopped working
PO430: Catalyst System Efficiency Below Threshold (Bank 2)
Here is a site that you should go to and further look at the common problems with your catylitic converter, and also your other emissions systems. Hope it helps, and please rate!!!
http://www.discountconverter.com/catalytic_converters_news/news_page.cfm?Key=codes-po420-po421-po430-po431&News=120
SOURCE: 99 jeep cherokee Blinker problem
Hi Bill,I think before replacing anything else you should give that hazard switch a good workout.The switch doesn't get get used very often and the contacts get corroded and can upset the indicators.Good Luck.
SOURCE: blinkers and hazards not working on Jeep GC
HI. the flasher is faulty or damaged. replacing this device will fix your issue.
SOURCE: Broken Hazard Switch
this part you can fine easy at any salvage yard so don't sweet it , and at this point you know its not hard to switch the part out . hope this helps you !
Wand Removal & Installataion
Fig. Steering column shroud removal for the Cherokee
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