Need Help Diagnosing Cruise Problem on 94
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Need Help Diagnosing Cruise Problem on 94
My cruise control on my 94SE doesn't work. Here is what I have verified as far as I can. Fuse OK in fuse panel. 3rd barke light bulb OK. Vacuum lines in good shape. Good vacuum at servo. Brake switch functions correctly. Servo is free and internal solenoid seems to operate properly.
I'm think it is the switch. Before I buy a new one, is there any reasonably easy way to verify it is the switch by wiring up a couple of switches (momentary or rocker to replace on-off and set buttons) to see if it is indeed the turn signal stalk switch.
Has someone done this and can anybody provide details? I don't mind buying a new switch if I know for sure that'* it but I don't want to buy a switch only to find out it is something else.
Any help would be appreciated.
Thanks,
Mike
I'm think it is the switch. Before I buy a new one, is there any reasonably easy way to verify it is the switch by wiring up a couple of switches (momentary or rocker to replace on-off and set buttons) to see if it is indeed the turn signal stalk switch.
Has someone done this and can anybody provide details? I don't mind buying a new switch if I know for sure that'* it but I don't want to buy a switch only to find out it is something else.
Any help would be appreciated.
Thanks,
Mike
#4
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Don is on the money here, too. Other than simply replacing parts one by one, there really isn't a good way to do this. We don't simply mean pulling codes, either. We're talking about a 'drivealong' to verify all the individual components. Even your TPS is a suspect at this point. Too many variables.
#5
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Originally Posted by willwren
Don is on the money here, too. Other than simply replacing parts one by one, there really isn't a good way to do this. We don't simply mean pulling codes, either. We're talking about a 'drivealong' to verify all the individual components. Even your TPS is a suspect at this point. Too many variables.
Having said that, I have had personal experience with the thin-gauge wires to the switch breaking inside their insulation at the point where they jump the gap from steering column to turn-signal lever, from flexing when signalling turns over the years. However, this was easy to diagnose since the system did still work most of the time, but would fall out of cruise mode if you wiggled the turn-signal lever while driving. If yours is completely DOA right now, I wouldn't go pulling the steering column apart in the absence of any clear proof that that'* where the problem is.
I'm sure the manual has one or more problem-diagnosis trees on this problem, and it'll really help you to locate a copy.
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