The 3rd passenger car has short in it and causes green light on cw80 to blink. Checked wires and contacts on trucks can't find problem.

Could be a problem with the flasher relay , I'd start with that

I am assuming you are using the Lionel CW80 power source. If so, the blinking light might indicate a partial short or a problem with the motor. The reason I believe that is that the CW80 has an internal fuse, which will blow for near shorts/shorts. A stalled motor i.e stuck drive gear, can cause excessive power drain although not enough to blow the internal fuse and also cause the engine not to move. Also, If the engine has the neoprene belt on one of the drive wheels it might have come off and is jamming the running gear or wheel. I believe the Polar Express only has one neoprene belt.

ever heard of the voltmeter. ?
a device the prevents guessing?
it's very simple to use, if yours is a DMM and that is confusing
use a walfart analog meter for $10 (retrograde meter)

so since one light works, that means the wires are bad.
when I say wires, that means the connectors too.

and btw the switch was good, after all it runs both lights.
my guess? is trailer wiring hacks, or collision damage caused.

if the dead lamp is 0v, the wire is cut.
if like 1v to 6v, its shorted. just enough to not blow fuse but lamp is very dim, did you look in the dark?

low voltage is called, VOLTAGE DROP. (on either side of lamp)
and is caused by 2 things, shorts, or resistance (corrosion)
and sadly you never said left or right side.
see the FSM. see the electric pages.
http://hondatech.info/downloads/Auto/Manuals/CR-V/

see page. 23-1 , index to elect.
then 23-84 brakes
then see them.
see the green-white wire, back aft? In USA we have silly 3rd light. do you>?
using the volt meter, measure the Green-white wire. (bad side)
if 12v?, brakes active, the ground to the lamp is open or the new lamp is DOA.
if the lamp tests good (use a battery), the ground is open to lamp.

if the wire reads 6v (low #), it's got a short. (or a rusty ground wire)
or the green wire is shorting to ground.
if you trace the wire to the other side if car, you will find the open cut wire or the ground out. I'm 100% sure. (grounds good)
if the lamp green has 12v, we measure the shell of the lamp to the body ground, metal, brakes active ! if not 0v, the ground to the lamp is bad. fix the ground.
very simple tests. all.
this is all with a $10 volt meter, it will not lie to you ever,. trust it.

When you touch the wires together you are shorting them out and causing the light to go out.

The Supplemental Air Bag Restraint System consists of two basic sub-systems:

• Driver side air bag module (043B13) and passenger side air bag module (044A74).
• Electrical system, including RH primary crash front air bag sensor and bracket (14B004) , LH primary crash front air bag sensor and bracket (14B005) , LH kick panel safing rear air bag sensor and bracket (14B007) and air bag diagnostic monitor (14B056) .

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13 Air Bag or Primary Crash Sensor Circuit Shorted to Ground

Inspect air bag sliding contact wiring in steering wheel , driver side air bag module , and passenger side air bag module for damaged, chafed or pinched wires.

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The ECM not only controls the ignition, fuel injection and pollution systems but it also controls the transmission as well. It is very clear that when the auto was start with the jumper in the plug there was a short cuircut and the ECM was damaged severly and must be replaced

When the green light stops blinking and is solid, the iron is ready for use. Touch the handle and begin using. but as you mentioned that green light is blinking and the iron is not heating then there is definitely a short in wire some where it has to be checked.most probably its the short in the heating coil wire.but if the heating coil wire is proper and not short then your irons heating coil probally went bad its alot cheaper to just buy a new iron .because heating coil costs near to new iron.but still get confirm if its short in wire. This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya

This is known as they yellow light of death(ironic i know). This is caused when the unit overheats causing solder on the board to melt and bridge. Once this happens it shorts out the board causing the error you have now. Contact Sony and see if the unit is still under warranty.

bad earth/ground in the light clusters causing power to use other bulbs as earth / ground

Hi there,

Your rear brake bulb wiring is connected to the high stop light, but when your problem occurs, it usually means there is a short in one of the brake bulbs (or associated connectors).

Firstly, inspect the brakelight fuse (just in case the rear lights are on a separate circuit).

Secondly, check for blown brakelight bulbs (and replace if necessary).

Thirdly, remove the bulbs and ensure they are the correct type (i.e. the bulb contacts must match the bulb holder - usually double contacts). If you have the incorrect contacts type, this will cause a short also.

Hope this helps...

Scott