Key Programming Using Two Programmed Keys - Integrated Keyhead Transmitter (IKT)

NOTE: Vehicles with Integrated Keyhead Transmitters (IKTs) were originally equipped with IKTs manufactured by Huf. Replacement IKTs made by Strattec works correctly, but may look and feel different. It is recommended that IKTs be replaced with the same manufacturer's keys. Rotunda supplies matching keys by the same manufacturer if they are ordered by vehicle.

NOTE: This procedure works only if 2 or more programmed ignition keys (they do not have to be Integrated Keyhead Transmitter (IKT) keys) are present. If 2 programmed Passive Anti-Theft System (PATS) keys are not available, refer to KEY PROGRAMMING USING DIAGNOSTIC EQUIPMENT - INTEGRATED KEYHEAD TRANSMITTER (IKT) .

NOTE: The Instrument Panel Cluster (IPC) PID SPAREKEY must be enabled for this procedure to operate. If this PID is not enabled, refer to KEY PROGRAMMING SWITCH STATE CONTROL - INTEGRATED KEYHEAD TRANSMITTER (IKT) . The IPC PID SPAREKEY is set to ENABLE when the vehicle is built.

NOTE: If the programming procedure is successful, the new key(s) starts the vehicle and the anti-theft indicator proves-out for approximately 3 seconds. If the programming procedure is not successful and the new key(s) does not start the engine, leave the key in the ON position for at least 3 seconds, then turn the key off. Repeat the key programming procedure from Step 1. If the failure repeats, refer to ANTI-THEFT - INTEGRATED KEYHEAD TRANSMITTER (IKT) in the Diagnosis and Testing information to review the DTCs and carry out the appropriate pinpoint tests.

NOTE: A maximum of 8 ignition keys can be programmed to a PATS vehicle, of which up to 4 can be IKTs . If an attempt to program more than 4 IKTs occurs, the Smart Junction Box (SJB) sets DTC B1138 (Memory and the IPC sets DTC B109E:42 (Remote Keyless Entry: General Memory Failure), and the additional IKTs do not have any Remote Keyless Entry (RKE) function capability. The IPC displays the message INT KEY COULD NOT PROGRAM. The PATS portion of the additional key functions, but the RKE transmitter function is inoperative.

NOTE: If the vehicle is in unlimited key mode, this spare key programming procedure still functions. Any 2 keys that can start the vehicle can be used to program an additional unlimited key. Also, if the vehicle is in unlimited key mode, the N_KEYCODE PID always reads 2, as long as a minimum of 2 keys have been programmed. The N_KEYCODE PID never reads more than 2 with the vehicle in unlimited key mode.

NOTE: If additional keys are to be programmed, and the remaining keys are with the customer, or are not available, instruct the customer to refer to the Owner's Literature for instructions on programming the remaining keys. In this case, the PID SPAREKEY must be enabled.

NOTE: Ignition keys must have a correct mechanical cut for the vehicle and must be PATS -encoded keys (contain a transponder). The key does not have to be an IKT key.

NOTE: This procedure is not necessary if only the PATS transceiver was replaced. Replacement of the transceiver does not erase the PATS keycodes in the IPC .

NOTE: If the steps are not carried out as outlined, the programming procedure ends. The procedure needs to be repeated.

Insert a programmed PATS ignition key into the ignition lock cylinder and turn the key from the OFF position to the ON position (maintain the key in the ON position for a minimum of 3 seconds and less than 10 seconds).
Turn the first key to the OFF position and remove the key from the ignition lock cylinder.
Within 10 seconds of turning the first key to the OFF position, insert a second programmed PATS ignition key into the ignition lock cylinder and turn the key from the OFF position to the ON position (maintain the key in the ON position for a minimum of 3 seconds and less than 10 seconds).
Turn the second key to the OFF position and remove the key from the ignition lock cylinder.

NOTE: IKT keys require a 6-second programming time frame for the RKE data transfer to take place, while standard PATS keys only require a minimum of 3 seconds.

Within 10 seconds of turning the second key to the OFF position, insert the unprogrammed PATS ignition key into the ignition lock cylinder and turn the key from the OFF position to the ON position. Leave the key in the ON position for a minimum of 6 seconds (this additional 3-second time frame allows for the RKE data transfer to take place, if programming an IKT key).

NOTE: The new key starts the vehicle and operates the RKE functions (if it is an IKT key), if there are 4 or fewer IKT keys now programmed to the vehicle.

Start the vehicle with the new key.
If it is desired to program additional key(s) (only up to 8 keys total can be programmed into the IPC ), repeat Steps 1 - 5 for each additional key that needs to be programmed.