Question about 1990 Mazda MX-6
I have power to battery, all electricals work when turned on, I turn the key all dash lights come on but nothing happens, no noise or clicking from engine bay at all just nothing but dash lights, sorry one relay ticks but it is the fan switch and it works ok, engine will just not turn over
If I understand you right, the problem is the engine will not crank, that is turn over when you turn they ignition key to START. Having said that, might it be that the issue is with the starter system. The starter system is initiated at the ignition switch when the key is turned to start. At this point, the ignition switch then provides +12VDC to a starter relay (if the vehicle has got one) or direct to the starting solenoid. The relay is but a remote switch with slightly higher amperage capacity. The starter relay then engages and supplies +12VDC to the staring solenoid. The starting solenoid then performs two (2) functions. It provides the switching action (hundreds amps) from the battery heavy cable to the actual starter motor. The solenoid likewise pushes a small pinion gear along the shaft of the starter motor to engage the ring gear. The ring gear is of course on the edge of the flywheel which in turn is attached to the crankshaft.
Starter system problems could be corrected by:
1. check battery, battery cables and connections;
2. charge the battery if required;
3. clean brushes and guides of brush holders of the starter motor;
4. clean the commutator and commutator segments;
5. check/replace the armature or field coils if determined to be defective;
6. in some extreme cases it could be the drive pinion or the flywheel gear ring is defective.
7. often it is the big switch that the solenoid activates that looses contacts causing no +12V internally to the motor.
8. Most likely would be a defective starter relay or the IGN switch itself. Relative to this, you might try and check the connectors/terminals and electrical joints.
In the picture below, the upper portion is the starter solenoid while the one below it is the actual starter.
Given the amount of work to overhaul a starter, you might consider just replacing it.
So recommended course of action is determine if there is +12VDC at the starter solenoid when IGN switch is turned to START.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
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Posted on Jun 04, 2008
Jag xkr not cranking over. put key in everything works but starter doesnt engage. i then go to starter relay n jump it , it cranks over. have bought it to jag they said change body module, did thatn had a key guy out n everything is workin with key. change exicter ring on key ignation still nothing someone please help. i did test ecm everything works there n body module. there is a key transponder that gives juice to exicter ring but cant find the damn thing. if any1 has idea please either call or email me @ keiths_keiths@ yahoo.com or call me @5047377265
Posted on Jun 18, 2011
If the starter is ok, then I suspect the key switch fuse.
Posted on Sep 28, 2014
Hi I have a 96 jaguar xj6 vanden plas and I am having the same problem. My uncle owned this vehicle before me and it started with him so he ran some wires to the fuse box and to starter so now to start the vehicle I turn the key to start all dash lights come on then I press a button he added then it starts. According to him it's something to do with the security system cause also my gas cap, trunk lid button and some lights are not working I don't know much about cars and I want to remove added wires and put back to original. Please help ordered an OBD tester to try to figure out the problem. Guamkm@gmail.com please send help info if you can help.
Posted on Sep 24, 2013
Posted on Oct 10, 2008
I don't own a mazda, but I'd start with the simple stuff first. If you turn on the windshield wipers, and they have plenty of power, it isn't the battery. Check the fuses in the fuse box. Nothing worse than paying 200 dollars at the garage for a 1 dollar fuse. If all the fuses are good, make sure the connections on the cables are clean Between battery, Starter, and ignition. If they are clean, make sure their is power going throug the cables, and that the starter is grounded. These are the first things to check. If all this fails, try push starting the car. If it starts and works, you have eliminated a lot of things it "might be".
Posted on Sep 02, 2008
There are several possible causes, but I would suspect a bad starter or a loose connection in the starter wiring; check the wires to the starter to make sure they are secure - There is a primary power cable (thick) direct from the battery +(Pos) connection post to the starter, which powers the starter motor, and a smaller wire from the ignition switch which actually controls the starter. With an inexpensive 12v test light, ground the clip wire to metal undercar and put the probe end on the post on the starter for the small wire while having someone turn the starter switch. If the test light lights when the key is in "start" position, you probably have a bad starter. If not, it could be a bad ignition switch or safety interlock switch (Automatic Trans have a "neutral safety switch" which insures the car is not in drive gear when starting located either by the shifter or on/inside the tranny; Manual Trans models have a switch on the clutch which blocks the starter if the clutch pedal is not depressed.) These can be temporarily bypassed with a jumper wire in order to troubleshoot the problem, but they are sometimes hard to locate and access (which is why mechanics make the big bucks!)
Hope this helps and good luck with the problem!
Posted on Jun 04, 2008
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