Archived 2002 no bus and truck won't start

[ARobertson]

My wife drives the truck daily (127k on it) and it would not shut off after the 2 min cool down time I had the juice set at. The truck would not shut off even after pushing the brake or re-inserting the key and turning it to run and back to off. She decided to unplug the edge's power supply and that shut the truck off. It since has refused to start. I have unplugged the connections at the PCM and cleaned them, I Removed my cluster and checked all connections, checked to make sure all fuses are intact, and left the batteries disconnected overnight. Nothing has fixed the problem. I found three codes after holding the trip button and turning to run: 921 922 999. I searched for old posts on the no bus problem and was unable to locate one that includes the truck not starting. I do not want to take it to the dealership. #@$%!

HELP

 

[JLandry]

Hello,



First off, what you did by pressing the odometer reset button while turning the ignition key on was to start the instrument cluster's self-test mode. I'm not sure this would help your situation as this mode doesn't access stored DTC's (Diagnostic Trouble Codes).



Do this: Turn the ignition key ON-OFF-ON-OFF-ON and leave in the ON position without attempting to start the engine. Watch the odometer window for trouble codes, write them down, and post them here.



In the mean time, you might try these ideas one at a time:



Try swapping out the "Fuel Pump" or "Fuel Injection" relay (it will be labeled similar) with another non-critical relay (like the Wiper relay) found in the PDC (Power Dist. Center) on the driver's fender in the engine compartment, then attempt to start. It's possible this relay has failed internally which will prevent the VP44 fuel injection pump from operating.



If that doesn't work, try swapping out the ASD (Auto Shut Down) relay with another non-critical relay and attempt a to start.



Good luck,



John L.

 

[ARobertson]

Thanks for the tip. I am not looking forward to explaining the how to of this to my wife over the phone, so I will probably wait till I get home this weekend. I'll let you know then.

 

[ARobertson]

ITS ALIVE!!!

Apparently when my wife unplugged the turbo timer wire in the internal fuse box, she unplugged the engine 10amp fuse as well. It took me all of 3 seconds to realize it when I had it in front of me. All is well again. Thanks for your help!