
Electrical And Instruments Page I-10
Page I-10
4.4 Key Programming Mode
Once the ESS has been placed into key programming mode the ESS will behave as if in “sleep mode” for one ignition
cycle only. This allows for the one ignition cycle that is required to program a new key to a new or existing BCM. The
ESS will enter “normal mode” for the next ignition 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.
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 follo ws:
1. Ensure all doors, boot and bo nnet are closed, all doors are unlocked, dome lamp is in the ‘doors’ position and the
radio, headlight and wash-wipe switches are off.
2. Place new key into the ignition barrel.
3. Turn ignition on. Verify ESS beeps 5 times.
4. For VZ Coupe Vehicles TECH2 must be operating in the Body Control Module su b-menu only.
5. Perform the Link Enable Procedure (see Section 1.5). Wait 1 second between each lock 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. Select Key Programming function – “Extra Key” - from the security sub-menu in the body menu of the TECH2.
When TECH2 requests ignitio n to be cycled with the existing key, leave the new key in the ign ition barrel and
instead, press the unlock button on the existing key. Verify the ESS beeps once and the Theft Deterrent LED
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 s t arts as normal.
Programming All New Key
Programming an All New Key for the vehicle can be achieved b y performing the following procedure:
1. Ensure all doors, boot and bo nnet are closed, all doors are unlocked, dome lamp is in the ‘doors’ position and the
radio, headlight and wash-wipe switches are off.
2. Place new key into the ignition barrel.
3. Turn ignition on. Verify ESS beeps 5 times.
4. For VZ Coupe Vehicles T ECH2 must be operating in the Body Control Mod ule su b-menu.
5. Perform the Link Enable Procedure (see Section 1.5). Wait 1 second between each lock 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. Select Key Programming function – “All New Key” - from the security sub-menu in the body menu of the T E CH2.
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 Theft Deterrent LED is off. The ESS is now operating in “normal
mode”.
10. Crank engine. Verify vehicle s t arts as normal.