
4.4 KEY P ROGRAMMING MODE
Once the ESS has been placed into key programming mode the ESS will behave as if in “sleep mode” for one
ignition c ycle only. This allows for the one ignition c yc le that is requ ired to progra m a new key to a new or ex isting
BCM. The ESS will enter “norm al mode” for the next ignit ion cycle. If the BCM is a new BCM in the vehicle with a
new security code, the ESS will then enter “armed mode” as expected.
4.4.1 PROGRAMMING EXTRA KEYS TO THE VEHICLE.
Programming more keys for the vehicle can be achieved using TECH2 once the ESS has been re-linked to the
vehicle as described as follows:
1. Ensure driver's door is closed, driver's door is unlocked, and wash-wipe switch is off.
2. Place new key into the ignition barrel.
3. Turn ignition on. Verify ESS beeps 5 times.
4. TECH2 must be operating in the “Normal Mode” submenu of the Body Control Module sub-menu.
5. Perform the Link Enable Procedure (s ee Section 4.5) . W ait 1 s econd between each loc k unlock to ensure the
door lock actuators function correctly during this procedure.
6. Verify that the ESS beeps twice. TECH2 reports ignition is at 12Vdc. The ESS has now entered “Key
Programming mode”.
7. Selec t Ke y Programm ing functio n – “Ex tra Ke y” - fr om the sec urity sub-m enu in the bod y menu of the T ECH2.
W hen TECH2 reques ts igni tion to b e c ycled with th e existing key, lea ve the new key in th e igniti on bar rel a nd
instead, press the unlock button on th e existing key. Verif y the ESS beeps once and th e Thef t Deterrent L ED
stops flashing. Complete key programming as requested by TECH2.
8. Turn ignition off and wait for 2 seconds.
9. Turn ignition on. Verify ESS beeps once. The ESS is now operating in “normal mode”.
10. Crank engine. Verify vehicle starts as normal.
4.4.2 PROGRAMMING ALL NEW KEY
Programming an All New Key for the vehicle can be achieved by performing the following procedure:
1. Ensure driver's door is closed, driver's door is unlocked, and wash-wipe switch is off.
2. Place new key into the ignition barrel.
3. Turn ignition on. Verify ESS beeps 5 times.
4. TECH2 must be operating in the “Normal Mode” submenu of the Body Control Module sub-menu.
5. Perform the Link Enable Procedure (s ee Section 4.5). W ait 1 second bet ween each lock unlock to ens ure the
door lock actuators function correctly during this procedure.
6. Verify that the ESS beeps twice. TECH2 reports ignition is at 12Vdc. The ESS has now entered “Key
Programming mode”.
7. Select Key Programming function – “All New Key” - from the security sub-menu in the body menu of the
TECH2. Enter BCM security code as requested by TECH2. Complete key programming as requested by
TECH2.
8. Turn ignition off and wait for 2 seconds.
9. Turn ignition on. Verify ESS beeps once and T heft Deterrent LED is off. The ESS is now operating in “nor mal
mode”.
10. Crank engine. Verify vehicle starts as normal.