No spark, no Pulse, no fuel pump, no start

Hi and thanks for using 2carpros. Com

There is a main power relay that can cause this. Here is a description of the component:

DESCRIPTION AND OPERATION
PURPOSE
To supply the Powertrain Control Module (PCM) and its output devices with battery current.
OPERATION
When the ignition switch is turned on, the normally open contact points of the relay close and supply power to the PCM.
The relay is located in the relay box under the hood. Here are the directions for checking it.
COMPONENT
View: Main Fuse/Relay Box (Power Distribution Box)
INSPECTION
Remove the Powertrain Control Module (PCM) power relay from the main fuse box.
Check Continuity Between Terminals 30-87
Apply battery voltage (B+) to terminal 85, then ground terminal 86. Check for continuity between terminals 30 and 87 of the relay.
It not as specified, replace the PCM power relay.

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As far as your symptoms, this is where I would recommend starting. If the relay fails, it will shut the vehicle down.

Let me know if this helps or if you have other questions.

Take care,
Joe

Hi again. Have you checked the relay? The power to the EEC comes from that relay. You have me confused. You say there is no voltage but there is constant 12 volts. Can you explain?