Where is the PassLock module on a car?
If there is a match, the Passlock module will send a signal to the engine control module to allow the engine to start and run. The Passlock module is commonly part of the Body Control Module (BCM) or Instrument Panel Cluster (IPC).
How does the GM PassLock system work for theft?
History of the GM Passlock family of anti-theft systems. An antenna located at the entry point of the ignition lock cylinder reads the transponder data from the key and sends a code to the Passlock control module. This system is very similar to the immobilizer system used by many other manufactures.
How does the PassLock shut off the fuel pump?
I have now learned that the PCM also shuts off the injectors as well as the fuel pump. This is done via the Fuel Enable circuit to the PCM. It can be duplicated with a 5v 50hz sine wave on Passlock systems which is probably all the newrockies device does.
What is the system fault code for PassLock security?
When the sensor defect starts, it usually presents itself as system fault code B2960. A red (or yellow) “security” warning light will stay illuminated and the engine will either a) never start or b) start for a moment and then shut down.
What is the name of the PassLock module?
PASSLOCK MODULES HAVE MANY NAMES INCLUDING ANTI-THEFT MODULE, VATS MODULE, AND PASSLOCK, BUT THEY ALL REFER TO THE SAME PART. THIS COMPONENT’S JOB IS TO TELL THE ELECTRONIC ENGINE CONTROL MODULE (ECM) THAT THE CORRECT KEY IS BEING USED TO START THE VEHICLE.
Why did General Motors start the PassLock system?
Aug 1st, 2005 The PassLock system was designed to prevent vehicle theft by disabling fuel to the engine if attempts are made to start the vehicle without the correct bitted key. PASSLock increased the level of security while retaining the ease of service and costs offered by standard ignition lock systems.
I have now learned that the PCM also shuts off the injectors as well as the fuel pump. This is done via the Fuel Enable circuit to the PCM. It can be duplicated with a 5v 50hz sine wave on Passlock systems which is probably all the newrockies device does.
Can You disable the PassLock on a GM car?
The following instructions will allow you to disable the PassLock security in quite a few GM Vehicles. •This will allow you to install a remote starter and not have to purchase a bypass. •Avoid Costly repairs for an already broken PassLock System.