As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WX RADAR AUTO MODE DOES NOT WORK PROPERLY ON CA SIDE. GROUNDED - YES. PERFORMED OPS CHECK REF B737-800 AMM 34-43-00-710-802-001 OPS CHECK NORMAL UNABLE TO DUPLICATE ON GROUND. REPLACED WXR CNTRL PANEL PRECAUTIONARY AND INSTALLATION TEST NML REF AMM 34-43-91/401.