After BCM Replacement, Key Fobs Can Not Be Programmed, Radio Reads LOC - keywords body code control entry keyless lock module number program remote RKE security tech2

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in the PI.

After body control module replacement, the BCM security code does not function or can not be located, key fobs cannot be programmed to the new BCM, and/or the radio reads LOC.

The GTO is supplied with a security card with all the security codes and key codes. When replacing a BCM, the new 6 digit security code is attached to the new BCM. The original security code is no longer operational with the new BCM. Write the new security code in the owners file and give a copy to the owner of the vehicle.

The early security codes were taped to the BCM with scotch tape. The current BCM security code is attached to the BCM on white label that measure 1 inch wide by 2 inches in length. The label does not have a bar code.

When replacing the BCM, new key fobs need to be ordered. The original key fobs will only operate with the original BCM. The key fobs are write-protected to the BCM that the fobs are programmed to. The key fobs can not be programmed to any other BCM.

When programming a new BCM, start by programming the new key fobs first. Next, link the BCM to PIM. Refer to eSI Document ID # 1379394 for link procedures. If security card is needed, call TAC and refer to PI AIC3082A.

After replacing the BCM, the radio may display LOC. The radio 4 digit pin number is located on the security card or can be accessed through the Tech 2. Refer to eSI Document ID # 1349190 to enter the pin into the radio.

Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.