Electrical No-Start Problems
- Check Your Fuses: Few cars have a fuse associated with the starting system, but before you go monkeying around with everything, check your fuses to be sure it's not that simple.
- Battery Corrosion: Over time your battery connections can become dirty, or corroded. This corrosion breaks the connection your battery has with the rest of the car, and it won't start. Try cleaning your battery posts, and try to start the car again.
- Dead Battery: The most common reason your car won't start is a dead battery. If you have a battery tester that can measure cranking amps, test your battery to see if it's weak. If you can't test it yourself, you can test the battery indirectly by jump-starting the car. If it starts right away, your problem is most likely a dead battery. replace the battery, and clean the battery.
1) Location of starter relay and the fuse.
= First thing to do.
- Check the location of fuse and starter relay from engine compartment fuse box,or in passenger fuse box.
= Pull out and check the fuse if busted visually.= Replace if busted. but if OK to 2nd step.
- Pull out Relay
= Visually check the number of each pin, pin 30,pin 85,pin 86,pin 87.
Pin 30 = Hot at all times – means even Ignition key is in acc (accessories) position current is flowing.
Pin 85 = Current is flowing only when the Ignition key is in “ON”
note: For automatic transmission this pin the current is flowing from Ignition fusible link 40A to Ignition switch, and from Ignition Switch to Transaxle switch Park and Neutral position, and to Starter relay,
Pin 86 =From Body ground.
Pin 87 = to starter solenoid switch. - more study
= From this instruction you can now trouble shoot the electrical circuit of starter.
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