How do you check the slator to see if it is any good useing a multymeter

use a volt meter or test lamp. multymeter performs multiple tasks such as volts, amps, ohms, capacitance, cps, etc.

The relay would have a solenoid coil, it should click when energyzed, two relay terminals correspond to the solenoid relay, power and ground or positive and negative. The solenoid activates by plunger a set of contacts, the contacts will make and break as the power to the solenoid changes. wether these contacts perform or are defective, a test power and load are needed. the relay will need power to activate the solenoid and power to be switched by the contacts to operate a load.
how do you test withouth test instrument? trial and error by bench testing and operating, an understanding of electricity would be helpfull. there is a challenge to your question, no easy answer unless the testing is performed with ingenuity and sabe. bypassing contacts, avoiding shorting out circuits and blowing fuses, get a electric meter, and jumpers, and learn to use it.

Use a capacitor tester with the proper range of farads. Some electric multymeters include a capacitance, or capacitor test for farads value.
This test tests not for capacitor value but for operation. Connect an ohm meter and the reading should jump before gradually settling to zero ohms. Reverse the leads and again jumps before settling down. Preferably with analog meter. Digital meter still works.
I've also tested capacitors by connecting it across AC voltage and reading the amperes. Then find the resistance of the capacitor with use of math formula R/EI, then use the Xc formula I don't recall now, something like C = 1/ (2pi f Xc).
For DC capacitors does not apply but to use a meter.

Could be the switch itself that is faulty. Not sure where yours is but could either be broken or not activating (being moved) when engaging reverse. Management light may not have anything to do with it, just a coincidence so treat them as 2 different problems.

it may be due to over heat of any part due to partial short. first put a fan in front of it and proceed .if the time of working increase we can make it sure .i f continiously works fix a fan permanantly otherwise find the faulty component by multymeter cold test

a popped breaker is a short in circuit, first check cord for damage, second it could be heater shorted to block. best checked with multymeter on ohms scale, circuit through block heater is usually 25 to 45 ohms.

Bad contact on battery use multymeter to check if voltage is there if not open the battery pack and see if bad connection exists or try another battery

hello,
first test the solenoid rssistens of each injector with digital multymeter
than comper the resullts the fualty one shuld show differnt reading from the others
1 pull the injector plug
2 test the ressistens
3 good injector must show 14-16 ohem
4 comper the ressults

you need to take to some one who has a scanner. to pin point witch wheel it is. there is noway to test them that i now of. the only other thing you can try is multymeter see if you have curint going thew them

Sounds like regulator/rectifier, stator, or charging rotor.

chick battery by multymeter if voltage is less then 3.7v then bust the battery then also if u get the same problem change the battery