Help with No electrical power.
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4wd Low
Joined: Oct 2013
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Help with No electrical power.
Have a 2005 f150 5.4 4x4 Crewcab with no electrical power inside or outside cab. Can someone post a checklist of tests to perform. The battery is new and the connectors have been replaced. Any help is much appreciated.
Thanks
JD
Thanks
JD
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Joined: Jul 2005
Posts: 11,931
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make sure you have a good ground cable from the battery... to ground.
Check voltage as SHO89 said... one terminal on ground, one on the battery + cable, then move it to the other end of the cable at firewall connection, etc
When you turn key "ON" and "START" it pulls in relay on firewall to pass voltage on to accessories..... See that the solenoid and the KEY both work... should have 12 v at the small terminal on soldenoid, then 12 volt on the OUTLET big terminals.
Check voltage as SHO89 said... one terminal on ground, one on the battery + cable, then move it to the other end of the cable at firewall connection, etc
When you turn key "ON" and "START" it pulls in relay on firewall to pass voltage on to accessories..... See that the solenoid and the KEY both work... should have 12 v at the small terminal on soldenoid, then 12 volt on the OUTLET big terminals.
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