Locks: Description and Operation

POWER DOOR LOCKS
The CTM controls the door lock actuation assemblies to handle locking and unlocking with the interior door lock switches or the RKE transmitter (key fob). There is also a door lock inhibit feature that prevents the power locking of the doors if the key is in the ignition or the headlamps are on and the left front door is open. However, the doors can still be locked using the RKE transmitter which allows the engine to run for warm up purposes.

Automatic (Rolling) Door Locks
When the doors are closed and the vehicle speed exceeds 15 MPH due to engine power (not just rolling) and all doors are closed, the CTM will lock the doors. The vehicle is shipped with the automatic door lock feature enabled, but may be disabled using the DRBIII or by the customer.

Door Lock Delay
If the CTM receives a signal to lock the doors and one or both of the auxiliary doors (side or rear) are open, the front doors will still lock. Five seconds after both of the auxiliary door are closed, the CTM will recycle the lock function.

Remote Keyless Entry
The CTM is compatible with a two button TRW RKE transmitter (keyfob). Two pre-programmed transmitters will be supplied with each vehicle. The CTM is capable of retaining up to four transmitters which can be programmed using the DRBIII or by the customer. When a signal encoded with the correct vehicle access code is received and contains a valid message, the CTM will activate the corresponding relay to lock or unlock the doors. When an unlock message is sent, all the doors will unlock, the VTSS will disarm and the illuminated entry will be activated. When a lock message is sent and all the doors are closed, all the doors will lock, the VTSS arming sequence will begin and the illuminated entry will turn OFF.

Horn Chirp
When the doors are locked using the transmitter, a horn chirp will sound to let the customer know the doors were locked. The vehicle will be shipped with this function disabled but may be enabled using the DRBIII. The duration of the horn chirp can also be changed using the DRBIII or by the customer.