How many volts is an ignition switch?
Checking at the battery The dial reading should be 12 volts or more. Work the starter switch, and the reading should fall, but not below 10.5 volts. If the reading does not fall, there is a fault in the ignition-switch circuit or in the solenoid.
What should the voltage be when cranking?
You can test for proper cranking voltage with a voltmeter while cranking the engine. The several hundred amperes of current the starter motor draws should pull the battery voltage down to as low as 9 to 10 volts. Usual average cranking voltage should be 10.8V.
What is the minimum cranking voltage specification?
1. While cranking, check the voltage at the battery terminal of the solenoid switch; it should be at least 9.6V or to manufacturer’s specs. While cranking, check the voltage at the starter terminal. It should also have a minimum of 9.6V.
How can I test the voltage of the ignition switch?
You can check the voltage of the switch by using two tools – a 12-volt test light or a digital multimeter. Step 1: Disconnect the module’s wire connector after turning the ignition switch off. Also, disengage the starter solenoid’s S terminal. Doing so will stop the engine from cranking despite turning the ignition key to the run position.
Why does the ignition switch not work when cranking?
So basically when cranking, the ECU was not getting enough power to work ut when you’d let the key drop back to RUN, the engine was still rotating fast enough that it would catch.
Where does the power from the ignition switch come from?
The ignition switch supplies power from your battery to most of your car’s electronics. Which parts get that power depends on where you turn the switch after you insert the car key. Which parts get that power depends on where you turn the switch after you insert the car key.
What are the symptoms of a bad ignition switch?
Which parts get that power depends on where you turn the switch after you insert the car key. These are the most common problems associated with a faulty ignition switch: Engine dies: This is one of the most common symptoms of a bad ignition switch.