schematics and diagrams: faulty ignition switch

Friday, December 30, 2011

No power to the control side of the fuel pump relay?

This problem is noticed on 2000 Pontiac Gran Prix.

This types of problem causes no start problem.
So first try this ,directly wire the fuel pump and see if its working or not.If not,then fuel pump itself is the issue.

First check the basic possibilities like fuel pump assembly, fuel pump relay, straight wired pump to make sure it works, checked fusible links and all fuses in dash and under the hood.

If all checked ok,then go for major troubleshooting.

When you turn the ignition on, Do you see the check engine light?

If you see check engine light on dash,then there is error code stored in cars engine computer module.The module needs to be scanned to retrieve error codes.

Basically in this cases you get steady check engine light on dash.But if you are not getting then try this ...

Manually jump the red to the thick pink at the back of the ignition switch see if that check engine light does come on?

If that lit up all the lights on the dash with the switch turned off or on.

Then try this
With the jumper in place are you able to start the engine?
If yes,then in your case its faulty ignition switch.It has to be replaced.

This details will help you.

Thanks.

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See below list of more solved car problems :------

Before purchasing Second hand car?

http://schematicsdiagram.blogspot.com/2011/12/before-purchasing-second-hand-car.html

Testing mass air flow sensor?

http://schematicsdiagram.blogspot.com/2011/12/testing-mass-air-flow-sensor.html

Where is MAF sensor located on 2000 Ford Expedition?

http://schematicsdiagram.blogspot.com/2011/12/where-is-maf-sensor-located-on-2000.html

Car won't start without hitting the gas pedal?

http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-without-hitting-gas.html

Ford Keyless Remote Fob Reprogramming?

http://schematicsdiagram.blogspot.com/2011/12/ford-keyless-remote-fob-reprogramming.html

1995 Oldsmobile Eighty Eight has bad O2 Sensor?

http://schematicsdiagram.blogspot.com/2011/12/1995-oldsmobile-eighty-eight-has-bad-o2.html

Dual Exhaust on 1996 Chevrolet camaro z28?

http://schematicsdiagram.blogspot.com/2011/12/dual-exhaust-on-1996-chevrolet-camaro.html

How to adjust rpm on 2009 dodge charger SRT8?

http://schematicsdiagram.blogspot.com/2011/12/how-to-adjust-rpm-on-2009-dodge-charger.html

Thursday, December 1, 2011

Car turns over,but only starts,if starter is jumped?

If you need dis-assembly or replacement instructions for any other auto/car part, or you want to ask question related to your car/truck jeep problem then please leave the comment with your details, so I can provide you the required instructions and solutions.

This problem is faced by many other car users too.
The likely problem is your ignition switch. There is a separate set of contacts in the switch for powering the ignition when the key is turned to start. Check for power to the coil when the key is turned to start. If no power, replace the switch.
Sounds like the ignition switch has gone kaput. The ignition switch come in two pieces, an electrical switch and a mechanical switch.
The switch electrical portion can be replaced separatly from the mechanical portion (tumbler that the key engages). It is not a real difficult repair but requires some mechanical knowlege of how the column is assembled.
The ignition switch is located at the bottom of the ignition key cylinder body. To remove the ignition switch, first remove the ignition lock cylinder.

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For more car related problem troubleshooting:---

This are the sections, you can go through and click the link to read its troubleshooting.

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