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Mazda B4000 Won't Crank

1998Mazda

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Joined
August 16, 2013
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Year, Model & Trim Level
1998 Mazda B4000
I have a 1998 Mazda B4000 with manual transmission. Recently it has got an intermittent starting problem. It's not the clutch pedal sensor, starter relay, starter/solenoid or the ignition switch as I have replaced all these. When this problem happens the engine will not turn over and there is no power to the starter relay. The radio etc. works and all the instrument lights come on. If I apply power to the starter solenoid the engine cranks and starts normally. The immobilizer key fob works properly.

I think the problem is in the factory anti-theft device. The vehicle does not have a PATS system. Since there is no power getting to the starter relay I think it might be a faulty starter interrupt relay but I can't check that because I don't know where it is. It may also be a faulty anti-theft RAP module. The truck starts properly when it's cool outside and seems to be a problem when the interior gets hot. This makes me think it some electronic module issue.

Has anyone else had this problem? If so, how did you fix it? Does anyone know where the starter interrupt relay is located? Is there any way to disable the anti-theft system?

Many thanks in advance.
 






Rick

Pumpkin Pilot
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Elite Explorer
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City, State
Wayoutin, Aridzona
Year, Model & Trim Level
'93 XL Pumpkin Edition
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AB7FH
I'm going to bump your thread up for you. Sorry I don't have an answer... Hopefully someone else will have an idea.
 






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