DTC B102B-87: Passive key authorization - Missing message: Action

Check power and ground supplies to CJB, RKE module and receiver. Check CAN communications between CJB and instrument cluster. Check key fob battery. Confirm vehicle surroundings, move vehicle. Check CAN network for interference/EMC related issues. Disconnect battery, then re-connect - confirm operation by re-programming keys. Check serial circuit between receiver and RKE module. Confirm spare key works. Refer to the appropriate electrical circuit wiring diagrams and test circuits to all 3 antennas. Check whereabouts of key