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| 7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines. |
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03-30-2011, 05:54 PM
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89 7.3 IDI Wiring issue
hey y'all.
i have a rear brake/blinker not working. passenger side. have changed bulb(obviosly). no go. it hasn't worked for a while but just recently found out. today: tested the socket to see if i was getting power to the bulb-NEGATIVE. checked at the connector going back-NEGATIVE. checked at the inside firewall-POSITIVE. cleaned all of the connectors and re-greased them. still NEGATIVE. could the socket be bad?  any help is great. also i don't have a wiring diagram due to having no book. ORANGE W/BLUE stripe if i'm not mistaken is the wire for the passenger side. 
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