EddieS'04
In Memoriam 1950-2022
A few months ago I replaced the cruise control switches, on the steering wheel. The covers were crumbling. As many have.
Recently cruise control was working, very intermitent.
I chose to check the drop out switch on the master cylinder. I used my ohm meter to test continuity, across the terminals. I did this with the harness off. Everytime I let go off the brake pedal I got varible resistance's. Some were normal and some were high, above 2000K & up. The resistance should be not much higher than the ohm meters leads, IMO. It was a couple of times.
So I jumpered the harness. Took it for a drive and all is well. Cruise sets every time.
I thought the switch was to drop the cruise out when you brake? It must be a secondary backup though. Because when I brake the cruise will still drop out. I was suprised to discover that. I also discovered there is no voltage on my harness, unless the motor is running.
So the F150's that caught fire from a constant powered switch. Is not the same wiring setup, on my '04 Trac.
I havent looked at my wiring manual yet. I will be replacing the switch for safety. :driving:
Just a tid-bit of Info.
FYI, my oem switch is the good one that didnt start fires.
Recently cruise control was working, very intermitent.
I chose to check the drop out switch on the master cylinder. I used my ohm meter to test continuity, across the terminals. I did this with the harness off. Everytime I let go off the brake pedal I got varible resistance's. Some were normal and some were high, above 2000K & up. The resistance should be not much higher than the ohm meters leads, IMO. It was a couple of times.
So I jumpered the harness. Took it for a drive and all is well. Cruise sets every time.
I thought the switch was to drop the cruise out when you brake? It must be a secondary backup though. Because when I brake the cruise will still drop out. I was suprised to discover that. I also discovered there is no voltage on my harness, unless the motor is running.
So the F150's that caught fire from a constant powered switch. Is not the same wiring setup, on my '04 Trac.
I havent looked at my wiring manual yet. I will be replacing the switch for safety. :driving:
Just a tid-bit of Info.
FYI, my oem switch is the good one that didnt start fires.
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