Procedures

ANTI-THEFT SECURITY ACCESS

NOTE:
- The anti-theft security access procedure is used to obtain passive anti-theft system (PATS) security access. PATS security access must be granted to reset parameters in the instrument cluster and powertrain control module (PCM), erase ignition key codes, program ignition key codes, enable/disable unlimited key mode, set unlimited transponder key ID and enable/disable the spare key programming switch (PID SPARE KEY). The anti-theft security access procedure invokes a 10-minute time delay prior to granting security access, during which the scan tool must remain connected to the vehicle. Once security access is granted, a security access command menu is displayed, which offers various command options.
- If the instrument cluster or the PCM is being replaced (or both), the parameters must be reset in both modules or the vehicle will experience a PATS no-start. This will occur even if the vehicle is not equipped with PATS. PATS vehicles and non-PATS vehicles have parameters in the instrument cluster and the PCM and they must be reset whenever either (or both) module(s) is (are) replaced.
- Once security access has been granted for either the PCM or the instrument cluster, you can toggle between the 2 modules without having to wait an additional 10 minutes.
- Once security access has been granted, multiple security access commands should be executed (if necessary) prior to exiting the command menu. This avoids an additional security access procedure and the associated 10 minute time delay.

1 From the IDS or equivalent tester, enter instrument cluster. Select ENTER SECURITY ACCESS. This procedure takes approximately 10 minutes to carry out, during which time the ignition switch must be in the ON position and the IDS or equivalent tester must be connected to the vehicle.
2 After the 10-minute security access procedure is completed, a new menu is displayed with command options. Select only those functions required before exiting out of this menu. Do not select more functions than the procedure calls for. Once exited out of this menu, the security access procedure must be repeated again to carry out additional commands.