Blew fuse panel and no crank change panel did the same thing every thing else works
What do you mean by no crank ? When you turn the key to the start position nothing Happens or the engine cranks but doesn't start an run ? You mite or mite not know that people refer to crank over as starting an running . If when you turn you key to the start position an nothing happens there is a relay in the underhood fuse box .Another thing , you replaced a fuse or the whole fuse box . Starter relay # 47 Do you know about relays ? how they work , power side an control side . The engine computer energizes the relay if no anti-theft system etc... You can go to http://www.bbbind.com/free_tsb.html free wiring diagrams an see what all is involved ! Once you click on link enter your vehicle info an under system click on engine an then under subsystem click on starting system . You can also go to youtube an check out videos on relays , basic electrical trouble shooting , voltage drop testing .Because testing is the only way to find out what the problem is . You should have it check for DTC'S - diagnostic trouble codes as well !
Testimonial: "it does not turn over there is power to everything checked the starter and relay checked the fuel pump and relay everything works changed fuse panel under the hood vehicle started and died 3-4 seconds later and same thing noturn over or start had it scanned and u1000 code appeared stated no communication link check security passlock it was not engaged thanks ralph"
U codes are communication problems with the class 2 serial data network .All modules on the vehicle share information on this network , it cuts down on wiring need to control vehicle .
DTC U1000 and U1255
Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for State of Health monitoring. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. When a module does not associate an identification number with at least one critical parameter within 5 seconds of beginning serial data communication, DTC U1000 or U1255 DTC is set. When more than one critical parameter does not have an identification number associated with it, the DTC will only be reported once.
The class 2 serial data line on this vehicle is a star configuration. The following modules communicate on the class 2 serial data line:
• The body control module (BCM)
• The driver door module (DDM)
• The electronic brake control module (EBCM)
• The front passenger door control module (FPDM)
• The inflatable restraint sensing and diagnostic module (SDM)
• The instrument panel cluster (IPC)
• The HVAC control module
• The liftgate control module (LGM)
• The memory seat module-driver
• The memory seat module-passenger
• The powertrain control module (PCM)
• The RSA/HVAC control module-rear auxiliary
• The theft deterrent control module
• The transfer case shift control module
• The radio
Diagnostic Aids
When a malfunction occurs while modules are communicating, a lost communication DTC is set as a current DTC. When the modules stop communicating the current lost communication DTC is cleared but the history DTC remains. When the modules begin to communicate again, the module with the open fuse will not be learned by the other modules so U1000 or U1255 is set current by the other modules. If the malfunction occurs when the modules are not communicating, only U1000 or U1255 is set.
Where did you find this U1000 code ? PCM -engine computer ? What type scan tool ,code reader use used ?
Install a scan tool.
Turn ON the ignition, with the engine OFF.
Record the DTCs set in by each module. If using a Tech 2, use the Class 2 DTC Check feature to determine which modules have DTCs set.
Did you record any DTCs in the range of U1001-U1254 with a history status?
Go to Diagnostic Trouble Code (DTC) List
Go to Step 2
2
Turn ON the ignition, with the engine OFF.
Attempt to communicate with each module on the class 2 serial data circuit. If using a Tech 2, obtain this information using the class 2 Message Monitor feature.
Record all of the modules communicating on the class 2 serial data circuit.
Compare the list of modules which are communicating to the list given in Circuit Description.
Does any module on the class 2 serial data circuit not communicate?
Test the following circuits of the module that is not communicating for an open or short to ground:
• The battery positive voltage supply circuits
• The switched battery positive supply circuits
• The battery positive voltage output circuits
• The ignition voltage input circuits
• The ignition voltage output circuits
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