Cruise control Issue (1 Viewer)

[WTX 80]

Hey everybody, new to the 80 series forums. I just picked up a 92 FJ80 and drove it back home. I noticed the cruise control will turn on but will not set speed, anybody know what might be causing this?

 

[Squash]

Start with trailer wiring, a corroded plug is possible.
Check you stop light bulbs, I've seem brake and tail filaments almost welded together in the bulb.
From then on it's more trouble shooting.
Also check trailer light sockets. There is one in rear d/s hatch and one d/s rear under the bumper.

 

[Malleus]

Download a copy of the FSM. The troubleshooting procedure for the cruise control is in there. Shotgun fault finding is never a good approach.

FWIW, Older multifunction controls have known internal contact problems. My '94 has a bad constant high beam switch contact. The intermittent switch works, but the maintained position won't.

 

[leonard_nemoy]

Led lights can and will cause problems also

 

[DivByZero]

FWIW, Older multifunction controls have known internal contact problems. My '94 has a bad constant high beam switch contact. The intermittent switch works, but the maintained position won't.

FYI, that's fixable. I described how I fixed mine in my post here:

No high beam

Just had this same issue. Traced it to the combination switch and took it apart until I narrowed down the cause. Same issue as described here. I snapped a couple of pics to be helpful in case there wasn't something on MUD about this. Mine is a RHD model but same thing really, just reversed on...

forum.ih8mud.com

 

[Rusty Marlin]

Make sure you have a brake pedle return spring and check the return hight of the peddle. After that it's FSM time.