Thread: Trouble codes
View Single Post
Old 11-22-2013, 07:58 AM   #87
Hart_Rod
*************
 
Hart_Rod's Avatar
 
Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,835
Re: Trouble codes

Quote:
Originally Posted by clinebarger View Post
Disconnect the ECM & TCM BEFORE performing any test, The last thing you want is to fry/brick a module. Unplug the ECM & Unplug the trans.

Load testing is very straight forward. I use a headlamp because you can SEE if the ground is poor, If the lamp is bright, the ground is good. If the lamp is yellow/brown or doesn't come on....the ground is poor.
Test it straight to the battery first to get a feel on how bright & color the light is.

The diagram should help, Hook one side of the Lamp to the positive side of the battery.
With a suitable probe & lead hooked to the other side of the Lamp......Probe the ground circuit your testing, This will load that circuit.

What I mean by "Suitable Probe" is Don't stretch out the terminal in the connector your probing. Or damage the plastic connector.
Thanks CB! I'll be working on it this weekend.
Hart_Rod is offline   Reply With Quote