U codes PEPS

[MacTrott]

Im not happy. There are codes in the scan results that suggest Peps system has communication problems. Scan displays a front antenna error and communications with PEPs module is affected. BUT THE CAR LIGHTS UP AND ENTERS READ MODE AND IS DRIVABLE

I cannot find any mention of PEPS in the service manual. Can someone help a newbie by providing documents and suggestions?

Thanks

[MacTrott]

update. cleared codes, car enters ready and drives fine. FOB battery is good. 12 V confirmed at the antenna. however depending on where the keyis postitioned in the car it may or may not be located. will swap the PETPs module ... fingers crossed

[MacTrott]

update - problem 'solved' . after thinking through the syntoms (ariel voltage 12vdc, intermittant 'no key located' warning on the dash display backed up the DTC flags. we decided the PEPS module should be swapped out.

has anyone attempted to bench test a faulty module? Id like your advice