Join Date: Nov 2001
Location: North Central Illinois
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One thing to consider when doing diagnostics on the light wiring - these vehicles use seperate systems for brake and turn signals . If the tow vehicle was set up for a shared wiring in the brake/signals like most US market that could be the source of the problem . I'd guess the switch that was installed prevented a cross short between the brake and turn signals when not being towed ....
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