Quote:
Originally Posted by clinebarger
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.
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Thanks CB! I'll be working on it this weekend.