Question about 1996 Chevrolet Cavalier
Hi the problem you are having is due to the fact that the new key is not programed to your cars immobiliser so if your new key is the same as your old one you need to get it programmed by main dealers, inside the old key their will be a little glass tube that has the chip in that the imobiliser picks up allowing the car to start,
try holding your old key really close to the ignition then start your car and see if it keeps running if it does you have 2 options. either get you new key programmed or get someone who knows about electrics for cars and get them to take your old key apart and remove the chip for imobiliser and then they can glue this where the imobiliser is, this means the cover has to come off the steering wheel and the chip needs gluing to the imobiliser that surrounds the ignition barrel, dont try this yourself as you can damage the chip by forcing it out of the key and it is made of thin glass so is easy to damage your best option would be to get your new key programmed
Posted on May 07, 2010
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.
the service is completely free 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:
Jan 09, 2017 | Cars & Trucks
Jan 08, 2017 | Oldsmobile Cutlass Cars & Trucks
May 20, 2016 | Cars & Trucks
The ignition switch
The body control module (BCM)
The powertrain control module (PCM)
When starting the engine, the PCM searches for a password from the BCM through the Class 2 serial data circuit. If the password is not recognized or not present, the PCM will disable the fuel injectors. Two modes of tamper detection are provided:
No password received
The engine will start and stall quickly. SECURITY telltale will flash on the instrument panel cluster (IPC) and then stay ON steady.
Incorrect or disable password received (More than 3 invalid passwords are received)
The engine is disabled for at least 10 minutes and the SECURITY telltale will illuminate solid on the IPC during the 10 minutes.
After the vehicle has passed theft detection, the PCM will continue normal operation
The mechanical key and lock cylinder is located on the steering column. The main electrical switching portion of the assembly is separate from the key and lock cylinder. The VTD portion of the ignition switch is the Passlock?"¢ cylinder.
The Passlock?"¢ lock cylinder is a locking cylinder that turns a magnet past a stationary hall effect sensor. When turned to crank, the hall effect sensor is latched which applies a fixed resistance to the Passlock?"¢ signal data circuit. The voltage measured by the BCM on the Passlock?"¢ signal data circuit is the Passlock?"¢ data value.
Body Control Module (BCM)
The BCM compares the Passlock?"¢ data value to a value that it has stored in memory. If the values match the BCM sends a password via the class 2 serial data line to the PCM.
Powertrain Control Module (PCM)
When the PCM receives the correct password, the PCM enables the fuel injection system, allowing the vehicle to operate correctly. The PCM may allow the car to start and quickly stall during a failed theft condition.
If the BCM does not receive a Passlock?"¢ data value, the BCM will enter a short tamper mode. During this mode, the VTD system will not allow the car to operate for 4 seconds.
If the Passlock?"¢ data value is incorrect, the VTD system will enter the long tamper mode. In the long tamper mode, the following actions will occur:
The THEFT SYSTEM indicator will flash.
The fuel injectors will be shut off for approximately 10 minutes.
Although the vehicle may start, the engine will quickly stall due to a fuel cut-off.
In the event of an open in the serial data communication between the BCM and the PCM or a failure in the Passlock?"¢ lock cylinder, the following actions occur:
The VTD system will become fail-enabled if the car has already passed theft for that ignition cycle (i.e. the engine is running).
The PCM or the BCM may set diagnostic trouble codes (DTCs).
The THEFT SYSTEM indicator will light continuously.
The PCM will become fail-enabled for future ignition cycles.
If a failure occurs when the ignition is off, while the VTD system is not fail-enabled, the PCM will never receive a valid password, and will not allow vehicle operation by disabling the fuel injectors. An this system can set 6 DTC'S
DTC B2947 Security System Sensor Power CKT Low DTC B2948 Security System Sensor Power CKT High DTC B2957 Security System Sensor Data Circuit Low DTC B2958 Security System Sensor Data Circuit High DTC B2960 Sec Sys Sensor Data Incorrect but Valid DTC B3031 Security System Controller in Learn Mode DTC B3033 Security System Indicates Tamper
May 21, 2015 | 2000 Chevrolet Cavalier
Mar 21, 2013 | 1999 Pontiac Sunfire
Jan 26, 2013 | 2007 Chevrolet Cobalt Coupe
Jun 19, 2011 | 1998 Chevrolet Malibu
Dec 23, 2010 | 1999 Oldsmobile Alero
May 04, 2009 | 1991 Cadillac Seville
146 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: