Question about 2001 Ford Expedition
Changed out ignition switch
New keys with cylinder may not have a transponder chip , or new keys will need to be programmed. you will require two keys equipped with proper transponder for your vehicle, and either new keys cloned with the old transponders. If you have lost the original keys , you will need someone to remove the original keys from the pcm , than marry the 2 new keys to the pcm. If you have an original key , try placing it by the lock cylinder when attempting to start with the key supplied with the new ignition cylinder.
Posted on Nov 09, 2014
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Oct 10, 2015 | Saturn Cars & Trucks
Apr 06, 2015 | Chevrolet Silverado Cars & Trucks
Mar 27, 2015 | Cars & Trucks
The ignition switch
The passlock?"¢ sensor
The Body control module (BCM)
The security telltale
The vehicle/powertrain control module (VCM/PCM)
The ignition lock cylinder is located at the upper right side of the steering column. The Passlock?"¢ sensor is in the steering column. The Passlock?"¢ sensor is separate from the key and lock cylinder. The key and the lock cylinder work together in order to determine if the proper ignition key was used to start the vehicle.
In the event of an open Class 2 serial data line between the BCM and the VCM/PCM, the vehicle will become fail-enabled if the VCM/PCM has already received the password from the BCM for that ignition cycle (the engine is running). In this event, the following conditions occur:
The security telltale will be ON continuously.
The VCM/PCM will become fail-enabled for future ignition cycles.
If a failure in the Class 2 serial data line occurs before the ignition cycle, when the VCM/PCM is not fail-enabled, the following conditions occur:
The VCM/PCM will never receive a valid password in order to enable the fuel injectors.
The vehicle will not start.
The lock cylinder and the visible key insert portion of the ignition switch are located at the upper right side of the steering column. The electrical switching portion of the assembly is separate from the key and lock cylinder. The electrical switch portion is hidden inside the steering column. The electrical switch portion and the key and lock cylinder synchronize and work in conjunction through the action of the mechanical assembly between the 2 parts.
The passlock?"¢ sensor is inside the upper right side of the steering column. The passlock?"¢ sensor contains 2 hall effect sensors. The tamper hall effect sensor is on the top. The security hall effect sensor is under the tamper hall effect sensor. Both of the hall effect sensors monitor the magnet of the lock cylinder through an opening. The tamper hall effect sensor is physically placed on top of the security hall effect sensor. This arrangement enables the tamper hall effect sensor to engage first if an intruder attempts to bypass the passlock?"¢ sensor by placing a large magnet around that area of the steering column. There is a tamper resistor inside the passlock?"¢ sensor in order to help prevent tamper to the system. Passlock?"¢ equipped vehicles have a selection of 10 different security resistors ranging from 0.5K ohms up to 13.6K ohms. Installing one of the security resistors inside the passlock?"¢ sensor will generate a unique passlock?"¢ code. All 10 combinations of the passlock?"¢ sensor have the same part number. However, you cannot simply replace the passlock?"¢ sensor and expect the system to operate properly. Always start by performing the Diagnostic System Check first and following the instructions.
The SECURITY telltale appears on the message center inside the instrument cluster. If the SECURITY telltale flashes or if the SECURITY telltale lights continuously during the vehicle operation, refer to the system diagnosis.
Fuel Lockout Cycle
The Passlock?"¢ system has a lockout cycle of approximately 10 minutes. Once the vehicle is in the lockout cycle, the vehicle remains in the lockout cycle for 10 minutes, even if the ignition switch is turned from the RUN position to the OFF position.
The Passlock?"¢ system uses the lockout cycle in order to synchronize all of the Passlock?"¢ components when any Passlock?"¢ related part is changed. The Passlock?"¢ system requires 3 consecutive lockout cycles in order to complete the 30 minute learn procedure for a changed component.
Mar 10, 2015 | Cars & Trucks
Dec 14, 2011 | Volvo 760 Cars & Trucks
Oct 18, 2010 | 1999 Toyota Tacoma PreRunner
Sep 02, 2010 | 1995 Ford Windstar
Sep 30, 2009 | 2001 Chevrolet Malibu
Aug 22, 2009 | 1988 Chevrolet S-10
Sep 07, 2008 | 1994 Chevrolet Camaro
209 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: