Jumper pin 1 to 5 on the fuse/relay block. That corresponds to pin 30 and 87 on the relay. The pump will run.
But check voltage on pin 1 first. Should be 12V constant.
The alarm cuts the injectors off.
The fuel pump only runs a few seconds when you put it on the run position then cuts off.
Pull the fuel pump relay in the back and jumper the terminals (give me a sec) and you will hear the pump run.
If they can't communicate to the PCM, then they damaged it or destroyed it.
You will have to take them to court for that.
Unplug the battery, let it sit for couple hours, reconnect the battery and hope it resets the PCM. If you still can't communicate to it then the PCM is broken or the OBD2...
First thing to do is turn the key to the run position and see if the fuel pump runs for a few seconds and report back on what happens.
DO NOT DO ANYTHING ELSE.
DO NOT TRY TO START IT, CRANK IT NOTHING. NO OTHER TESTS NOTHING.
if you want help you need to do exactly what you are told. Nothing...
Which exact light are on?
If you click the high beams will they come on and what happens to low beams at that time?
Turn or fogs light on and click the high beams on that will turn off the fogs.
The headlights are controlled by a relay in the PDC.
Put mics out back. Wheel bearing, diff could be the issue. Wheel bearing has been at fault in a number of 'driveline noise. Pulling the tr a n ny is a big job when you are guessing. And we always guess wrong.
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