What was found
DURING CRUISE AT FL410 THE MASTER CAUTION LAMP AND PRESSURIZATION SYSTEM WARNING LAMP ILLUMINATED. CABIN ALTITUDE INDICATED 9000FT. CREW DECLARED AN EMERGENCY AND PERFORMED AN EXPEDITED DESCENT. DIVERTED TO ABQ FROM ORIGINAL DESTINATION. MX FOUND CHAFED WIRING IN THE HARNESS FOR THE CABIN PRESSURE INDICATOR. WIRING WAS REPAIRED AND OPERATIONAL CHECK PERFORMED. NO OBSERVED DISCREPANCIES. AIRCRAFT APPROVED FOR RETURN TO SERVICE.