GM Service Manual Online
For 1990-2009 cars only
Lockout Timer: The duration of time the system remains in the tamper mode. This information is stored in volatile memory. The value is 0-4 seconds.

Manufacturer's Enable Counter: The number of ignition cycles that have occurred since the theft deterrent module was installed on the vehicle. This is restricted to 255 ignition cycles. This information is stored in non-volatile memory. The values are 0-255.

Re-learn Counter: The number of remaining re-learn timer intervals required in order to enter the re-learn first key mode. This information is stored in volatile memory. The values are 0-3.

Re-Learn Timer: The duration of time the system remains in the re-learn wait mode. This information is stored in volatile memory. The value is 0-10 minutes.

Reset Counter: The number of times the system abnormally exits one of the operating modes. This information is stored in non-volatile memory. The value is 0-10.

Valid Key Code Counter: The number of valid PASS-Key III coded keys the system has learned. This information is stored in non-volatile memory. The value is 0-10.