z425 will not start

[Auto Doc's]

Hi ACF,

Here is an example of the voltage drop test:

https://www.bing.com/videos/rivervi...E312C6FCE7034ED0B900E312C6FCE7034ED&FORM=VIRE

The trick is power has to be flowing on the circuits with the key turned to the crank position while measuring with the DVOM. This phenomenon of seeing a voltage reading on the meter with the leads on a single cable or wire is what tricks many people.

 

[ACF]

new battery on charge

did the following test
battery positive side to cable going to solenoid
off .001 run .001 start .001
battery positive cable to starter
off 14.21 run 14.21 start 13.8
battery positive to solenoid connection that has white attached
key off 3.44 run 14.21 start 13.96
battery positive to white wire disconnected
key off .003 run 14.19 start .004
ground off .00 run .00 start peak .064

solenoid bad ?

Hi ACF,

Here is an example of the voltage drop test:

https://www.bing.com/videos/rivervi...E312C6FCE7034ED0B900E312C6FCE7034ED&FORM=VIRE

The trick is power has to be flowing on the circuits with the key turned to the crank position while measuring with the DVOM. This phenomenon of seeing a voltage reading on the meter with the leads on a single cable or wire is what tricks many people.

 

[Auto Doc's]

Do not have a charger connected when testing but make sure the battery is good.

Only test for voltage drop with the key switch held in the crank position for each meter reading test as you move around.

Remember to only test one (the same) wire or cable at a time from end to end.

 

[ACF]

no charger new battery
battery cable to solenoid in start .002
battery to starter in start 12.90
battery to white wire on solenoid 12.88
battery to white on solenoid wire not connected to the solenoid .008

 

[Auto Doc's]

no charger new battery
battery cable to solenoid in start .002
battery to starter in start 12.90
battery to white wire on solenoid 12.88
battery to white on solenoid wire not connected to the solenoid .008

You will need to check all safety switches working backwards from the white solenoid trigger wire if I am understanding the reading correctly.

Maybe this video will help.

Testing John Deere Z425 safety switches - Search Videos

www.bing.com