I'm having some issues with the rear lights, turn signal lights, and even the cruise control. When I activate the turn signal to change lanes, the cruise kicks out.These related things just suddenly happened while on our last journey home.The problem is probably a grounding issue or maybe a bare wire short but where to look :hThe question is: will an OBDII be of any help?

All lights went out on our trip south in November. Stopped at a rest area. Found that a collection of ground wires near trailer hitch were hanging down from frame. Bolt had broken off. Put a new bolt in place to correct light problem.Not sure if this would also affect cruise control.

Jim, It would help is we had some idea what the vehicle chassis is without digging trough your profile. Am OBDII reader will probably not tell you anything of interest. OBDII is pretty much strictly an engine related system. Many cruise systems use the brake light signal to release. When the line goes high (brake lights on) the system disengages. If the ground to the lights is bad, then that signal may look high. So, go look for the bad ground at the rear. I can't even begin to tell you where to look. Matt

I'd view the operation of the stop and turn lights for a clue. It may be a bad ground but more likely you may have an issue with the turn signal sw in the steering column. When a turn signal is operated, the sw disconnects that side from the brake light for the other side so as not to flash both. Yours may be feeding back into the brake wire to the pedal sw and cancelling the cruise control.

X2...What he saidYour going to have to take the steering column apart, to replace that switch or the lever that contains the cruise control wiring,Start by removing the steering wheel

What chassis? Can't give anything but guesses without that info.

Wiring issues in the MH. | Good Sam Community

Matt_Colie
Explorer II
Jan 13, 2014
Jim,

It would help is we had some idea what the vehicle chassis is without digging trough your profile.

Am OBDII reader will probably not tell you anything of interest. OBDII is pretty much strictly an engine related system.

Many cruise systems use the brake light signal to release. When the line goes high (brake lights on) the system disengages. If the ground to the lights is bad, then that signal may look high. So, go look for the bad ground at the rear.

I can't even begin to tell you where to look.

Matt
ronfisherman
Moderator
Jan 13, 2014
All lights went out on our trip south in November. Stopped at a rest area. Found that a collection of ground wires near trailer hitch were hanging down from frame. Bolt had broken off. Put a new bolt in place to correct light problem.
Not sure if this would also affect cruise control.

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Wiring issues in the MH.

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