Car Repair World

Car Ignition Switch Replacement Safety Tip: Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes. 1 Locate your battery. 2 Touch the ground side probe of the DMM to the negative battery post and the power side probe of the DMM to the positive battery post with the vehicle running. 3 Locate your ignition switch. 4 Gain access to the wiring behind the ignition switch. 5 Touch the ground side probe of the DMM to a good known ground (such as an unpainted screw to the body frame or door hinge bolt). 6 Back probe the power side probe of the DMM to the wire that connects the ignition switch to the fuse in the START position. 7 Read the current voltage reading on the DMM. You should have full battery voltage running through the ignition switch at this time. A significant drop (a reading such as 10 Volts or lower) would indicate high resi...

Ignition Switch Jammed Ignition Switch Stuck Ignition Switch Will Not Turn ON Helpful Information In extreme conditions such as high mileage or a keychain adorned with many ornaments the ignition key can wear causing the key not to work. If the door key is same as the ignition key, the door tumbler can be removed and copied if no frequency chip is installed. Dirt and debris inside the key lock can cause the tumbler assembly to stick and jam, not allowing one or more of the key followers to operate. To service a key lock tumbler, spray pressurized air along with an aerosol cleaner into the lock assembly, once clean apply a light lubricant to the tumbler. Vehicles equipped with an automatic transmission utilize an interlock cable that prevents the transmission to be moved from the park position. Though rare, if the gear shift selector is not completely in park it can cause the ignition switch to jam. Step by step guide on how to repair an automotive ignition switch th...