What was found
DURING FLIGHT, PROP DEICE CAUTION LIGHT NR 2 ENGINE ILLUMINATE FOR 6 SEC AND THEN EXTINGUISHES. DIVERTED DUE TO ENROUTE WEATHER. LANDING UNEVENTFUL. CHECKED CDS AND FOUND NR2 TMCU FAULTS OPEN HEATER PHASE B AND OPEN HEATER PHASE C. COMPLIED WITH NR2 PROPELLER ELECTRICAL RESISTANCE CHECK IAW MM TASK 30-61-00-760-801 AND FOUND NR 2 BLADE HEATER LEAD BROKEN AT BULKHEAD. REPLACED NR 2 PROPELLER NR 2 BLADE HEATER LEAD IAW MM TASKS 61-10-06-000-805 AND 61-10-06-400-805. NR2 PROPELLER ELECTRICAL RESISTANCE CHECK NOW GOOD. CLEARED TMCU FAULTS. PROPELLER DEICE FUNCTIONAL TEST AND CALIBRATION CHECK GOOD IAW MM TASK 30-61-00-720-802. ALL INDICATIONS NORMAL DURING TEST. NO TMCU FAULTS FOUND AFTER TEST. RETURNED TO SERVICE.