What was found
REPEAT: RIGHT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED AFTER LANDING, CYCLED THE WINDOW HEAT SWITCH, LIGHT EXTINGUISHED. GROUNDED - YES. ACCOMPLISHED WHCU BITE PROCEDURES 1 FAULT NOTED WINDOW SENSOR REF B737-900 FIM TASK 30-41 TASK 801. ACCOMPLISHED RESISTANCE OF WINDOW TEMP SENSOR ON RIGHT SIDE WINDOW. PRIMARY SHOWED 389 OHMS SWAPPED TO SPARE SENSOR LUB NOW READS 322 OHMS WITHIN MAINTS LIMITS REF B737-900 AMM 30-41-21-760-801. PERFORMED WINDOW HEAT SYS OPERATIONAL TEST GROUND VERIFICATION TEST PASSED NO FAULTS NOTED REF AMM 30-41-00-710-801. PERFORMED BITE PROCEDURE ON WHCU TEST PASSED NO FAULTS NOTED REF FIM TASK 30-41 TASK 801.