do you mean by "check the test light"?
times people are fooled because they don't check (test) the connections
to their test gear. When the test light is clipped to ground,
it is a good practice to touch the other connection to a known
good power connection such as the battery + or the solenoid battery
connection. This will cause the test light to light if the ground
connection chosen is good. If the ground connection chosen is
not good then testing while using that ground connection will
give inaccurate results. The same is true of meters.
Similarly, when using the
test light clipped to power (such as the solenoid's battery connection
or battery +, the test light should first be checked by touching
the tip to a known good ground to confirm that the light works.
This may seem simple but anyone
who has done much testing will admit to having chased their tail
looking for a problem which wasn't there because the ground or
power connection chosen was not functioning.
Some terms worth considering:
1) Ground- is a connection, circuit or path which uses the vehicle's
or unit's chassis. Modern vehicles have the ground connected to
the battery's negative and are thus referred to as negative ground.
Any connection making its way to the negative will be referred
to as a ground. This is true of good or unintended connections.
A fault in the wiring, such as a wire which has insulation rubbed
through so that it is in unintended contact with the chassis will
be said to have a ground (fault).
2) Open- is a point in circuit
which does not complete as intended. In other words the circuit
is open as a bridge can be said to be open. In either case there
will be no flow of either current or traffic. A switch in the
open position is off.
3) Short- is an unintended
path which bypasses part of a circuit. This bypass will generally
mean that the component being bypasses will not operate and because
the resistance of the component is not present in the circuit,
the current flow will be higher than intended. Typically short
circuits or "shorts" will blow fuses or cause wiring
fires. Shorts may be a short within the insulated (power or positive)
side of the circuit, or the short may be an unintended path to
ground which is properly referred to as a short to ground but
is typically referred to as a ground.
when the ground wire is removed from the bolt on the frame the
light on the
tester still lights when I have it connected to the (-) negative
on the battery and touch the
center of the lighter/adapter.
If the test light is clipped
to a good ground, the test light has a path to ground which will
allow the test light to light if the tip is placed in contact
with a power source. In this case the power source is the centre
(Canadian spelling) of the cigarette lighter adapter (socket)
which means that power is present to the cigarette lighter/adapter
because the test light obtains power from that circuit as indicated
the light. The ground circuit of the cigarette lighter/adapter
is not required to provide power to the centre connection of the
cigarette lighter/adapter so whether it is connected or not will
have no effect on whether the test light lights when connected
to the centre connection of the socket. This is a normal result.
I suggest that you connect
the test light's clip to the battery positive or the battery connection
on the starter solenoid. Next, touch the light's tip to a ground
such as a bolt on the frame or engine. If the light lights you
know that the connection to the positive works and can proceed
to test other grounds. Touch the tubular (as opposed to the centre)
connection of the cigarette lighter/adapter and the test light
should light (glow) to indicate that a path to ground is present
through the tubular (ground) part of the lighter/adapter.
tried two lighter chargers with my cell phone and got one to work
sort of. It worked for a few seconds charging but then stopped.
I don't understand why and if the ground wire is working.
my experience the most likely cause of intermittent charging is
that the cigarette lighter/adapters are typically of poor quality
both the socket adapters and the accessories which plug into the
socket. Usually testing by wiggling the wiring will indicate if
there is an intermittent connection within the socket/adapter
and if not the likely culprit is a poor fit between the adapter
and plug. Looking and wiggling will usually narrow this down.
Swearing is not optional during this aspect of testing and the
more "blue" the air turns, the more quickly the problem
can be located (VBG) or at least it seems that way.