What is a WCM on a Jeep Liberty?
A no crank or no start condition may develop due to electronic lockup of the wireless control module (WCM), also referred to as the Sentry Key Remote Entry Module (SKREEM). When this module fails the remote keyless entry system will also not operate. The WCM is commonly replaced to correct this concern.
How do you replace a wireless control module ( WCM )?
1. First replace the PCM/ECM with the original WCM still connected to the vehicle. 2. Using the appropriate service information program the new PCM/ECM. (This will ensure the secret key transfer from the original WCM into the new PCM/ECM).
How to reset your Jeep ECM ( Engine Control Module )?
Here is a little summary of it , the ECM is the brain of the vehicle and just like everything else you’re going to have to reset it and test it to make sure it’s in a great working condition. To reset your Jeep ECM you’re going to have to follow a couple of easy steps and you’ll be done before you even know it.
Do you need to replace the WCM in a JS?
Note: If the vehicle (a JS model vehicle in certain International markets) is equipped with an ELV, then the WCM and the ELV (P/N 05026132AC) must be replaced. Replace the WCM and then the ELV. Next program the WCM and at least one ignition key before programming the ELV.
How to replace the WCM / Skreem in a Chrysler?
2. Replace the WCM/SKREEM. Note: Obtain the vehicle PIN prior to programming WCM/SKREEM or ELV. Note: If during the following steps the PIN is properly entered but is rejected, then re-enter the PIN again until it is accepted.
1. First replace the PCM/ECM with the original WCM still connected to the vehicle. 2. Using the appropriate service information program the new PCM/ECM. (This will ensure the secret key transfer from the original WCM into the new PCM/ECM).
Here is a little summary of it , the ECM is the brain of the vehicle and just like everything else you’re going to have to reset it and test it to make sure it’s in a great working condition. To reset your Jeep ECM you’re going to have to follow a couple of easy steps and you’ll be done before you even know it.
Note: If the vehicle (a JS model vehicle in certain International markets) is equipped with an ELV, then the WCM and the ELV (P/N 05026132AC) must be replaced. Replace the WCM and then the ELV. Next program the WCM and at least one ignition key before programming the ELV.
2. Replace the WCM/SKREEM. Note: Obtain the vehicle PIN prior to programming WCM/SKREEM or ELV. Note: If during the following steps the PIN is properly entered but is rejected, then re-enter the PIN again until it is accepted.