Why does my truck say charging system failure?
Whenever this light goes on, it means that the vehicle is running solely on battery power. If the problem continues and your charging system fails, the battery won’t be able to recharge and it will soon run down, leaving you with a dead battery.
Can AutoZone check charging system?
Remember that AutoZone can help with any of your Battery, Alternator, or charging system needs through replacement parts or testing. If you need additional help, browse through our Preferred Shops in your local area to help you diagnose and do the job!
What component should you test first when troubleshooting a charging system issue?
First, measure battery base voltage to make sure you have a fully charged battery.
- Turn on the high beams for 10 seconds and then turn them off.
- Wait for two minutes.
- Measure battery voltage across the battery posts with your DMM. You should get between 12.4 and 12.6V. This means your battery is fully charged.
What does charging failure mean?
The vehicle is detecting an issue with the alternator or the battery. When supplied power from the system is too low or too high, the monitoring system will alarm you. You should have the battery and alternator tested to see which is failing. It may also cause the vehicle to stall and leave you in harms way.
What should I do if my Toyota charger is not charging?
Toyota recommends testing the alternator by first inspecting the alternator wiring. Always wiggle-test the voltage regulator connector at the alternator when testing for an intermittent charging condition. Toyota also recommends inspecting the condition of the drive belt.
How does a Toyota battery charging system work?
Most Toyota charging systems integrate their voltage regulators into the alternator assembly. While charging voltage specifications vary according to application, the voltage regulator generally adjusts battery-charging voltage according to ambient air temperature.
What kind of voltage does a Toyota Charger need?
Photo 1: This 10.64 battery cranking voltage is well above Toyota’s threshold of 9.6 volts, which means the battery isn’t causing the charging system problem. According to Toyota, a dynamic battery state of charge (SOC) and state of health (SOH) test can be performed with the aid of a simple voltmeter.
How can I tell if my Toyota alternator is charging?
I’ll have to double check, but it should only be around 300 mA once the fuel pump is off. To do this, disconnect one of the battery terminal wires. Turn the ignition to the ON position and turn your radio and all lights off including your dome light.