18-073-16

"FLASH: 3.6L POWERTRAIN DIAGNOSTIC AND SYSTEM ENHANCEMENTS. THIS BULLETIN INVOLVES REPROGRAMMING THE POWERTRAIN CONTROL MODULE (PCM) WITH THE LATEST AVAILABLE SOFTWARE. A SMALL NUMBER OF CUSTOMERS MAY EXPERIENCE A MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION. UPON FURTHER INVESTIGATION THE TECHNICIAN MAY FIND THE FOLLOWING DIAGNOSTIC TROUBLE CODES (DTCS) SET IN THE PCM MEMORY: · P0335 - CRANKSHAFT POSITION SENSOR CIRCUIT. · P0456 - EVAP SYSTEM SMALL LEAK. · P2610 - PCM INTERNAL ENGINE OFF TIMER PERFORMANCE. IN ADDITION TO THE ABOVE DTCS, THIS SOFTWARE RELEASE ALSO INCLUDES: · ENHANCEMENTS TO THE DISABLE MISFIRE MONITOR WHEN P0335 IS PRESENT. · ADD A GLOBAL DISABLE TO SMALL LEAK MONITOR WHEN THE FUEL LEVEL IS ABOVE 88%. · UPDATE SMALL LEAK DIAGNOSTIC TO REQUIRE 5 MINUTES OF ENGINE RUNTIME AND 120 MINUTES OF ENGINE OFF TIME. · UPDATES TO PREVENT FALSE FAILURE DUE TO WRONG AMBIENT TEMPERATURE READING."