How to test the alternator on a Silverado truck?
How to test the alternator on a Silverado truck?
The most important thing is to test the turn on wire for 10.x volts with the truck running and the alternator unplugged. No turn on wire = no alternator output. Both of these trucks also set a P1637 code. This code won’t turn on the check engine light.
What does the battery light on the alternator mean?
This is the same connector that lets the on-board computer know if the alternator is charging or not, which is what the battery light actually means. You can use a volt meter to test what the battery is receiving by connecting it to the middle of the posts while the engine is running.
Is the battery light on the 2nd Gen Tacoma?
Battery light is on. Alternator and battery tested good?! Discussion in ‘ 2nd Gen. Tacomas (2005-2015) ‘ started by Jchavez, May 11, 2013 . So a last week my battery light popped on. After 5 minutes of driving it will go on and won’t turn off. I had my alternator and battery tested 3 times and they tested good every time. Any ideas?
What to do if your alternator wont start?
Alternator problems? Do a Fusible link test first If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.
The most important thing is to test the turn on wire for 10.x volts with the truck running and the alternator unplugged. No turn on wire = no alternator output. Both of these trucks also set a P1637 code. This code won’t turn on the check engine light.
What causes a battery light to come on after an alternator is installed?
The most common is, again, a loose connection either with the control plug (aka “relay” plug-in), charging line connection, or the ground. The other is a blown fuse or defective connector or relay, which could have been broken or shorted when the alternator was installed or on the first start-up after its installation.
How can I tell if my alternator or battery is OK?
As with most electrical issues, if you know the battery or alternator is OK (because you had it tested), then diagnosis comes down to tracing and testing for continuity from one portion of the circuit (s) involved to the next.
How to diagnose an alternator or electrical problem?
Diagnosing alternator problems can be a bit tricky because the electrical system in a car comes from two places, the battery and the alternator. I’ll give you a little background so you can understand what both systems do. The battery has one primary function, which is to start the car.
What happens if you have a bad alternator in your car?
The car won’t start at all. If the problem is a bad alternator, your car will slowly lose power. You’ll be driving down the road, your lights will dim, and you’ll lose power and die. If the problem is with your battery, then you’ll generally only have trouble starting your car since that’s the battery’s main function.
