How to Troubleshoot Your Chevrolet Tracker Headlight Assembly
Your Chevrolet Tracker headlight assembly can be easily diagnosed even if you will have to do it by yourself. Here are some ways to find out what is causing the component to go bad.
Make a list of possible problem areas
Just because the assembly is bad doesn't mean that the entire thing has failed. Sometimes one function-whether it's the parking, fog, or headlights-can bring the whole component down. Check each function for continuous and sporadic use as they could have caused the wiring to go bad. Examine the headlights for condensation as well since this is a common cause for faulty headlights.
Determine the bad ground wire
Another common cause of a bad headlight assembly is that one of its ground circuits might have shorted or opened. To find the bad ground wire, remove the connector from the back of the headlight. If you see three wires in the connector, then one of them is ground; but if you see four, then two of them are ground. Trace these wires back from the connector as far as you can see them. The one or two that are connected to the chassis are the ground wires. With a multimeter, check its resistance. If the ground wire does not show continuity, then this means it is broken.
Check for a bad bulb
One likely cause of a bad headlight assembly could probably be due to a failed bulb, especially when only one headlight does not work. Just like your regular household bulb, headlight bulbs have a limited life depending on the number of hours used and how much vibration they have been subjected to. The filament inside this component will eventually burn out, usually within 600 to 2,000 hours of use. Simply replace the bad bulb with a new one.
Other troubleshooting tips
Clean the headlight assembly before moving on to do some electrical troubleshooting. Sometimes, this component can go bad just because you haven't given it proper maintenance. Make sure to remove all the grease and film, and dry the entire assembly first before reinstalling it.