18-009-16 REV. B

"FLASH: POWERTRAIN DIAGNOSTIC AND SYSTEM IMPROVEMENTS THIS BULLETIN INVOLVES REPROGRAMMING THE POWERTRAIN CONTROL MODULE (PCM) WITH THE LATEST AVAILABLE SOFTWARE. CUSTOMERS MAY EXPERIENCE A MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION. UPON FURTHER INVESTIGATION THE TECHNICIAN MAY FIND THE FOLLOWING DTCS SET IN THE PCM MEMORY: · **P1066 - CYLINDER 1 OIL SUPPLY SOLENOID VALVE SWITCH OFF TIME OUT OF RANGE. · P1068 - CYLINDER 2 OIL SUPPLY SOLENOID VALVE SWITCH OFF TIME OUT OF RANGE. · P106A - CYLINDER 3 OIL SUPPLY SOLENOID VALVE SWITCH OFF TIME OUT OF RANGE. · P106C - CYLINDER 4 OIL SUPPLY SOLENOID VALVE SWITCH OFF TIME OUT OF RANGE.** · P1185 - GENERAL PRESSURE SENSOR CORRELATION. · P0335 - CRANKSHAFT POSITION SENSOR CIRCUIT. · P050D - COLD START ROUGH IDLE. · P0456 - EVAP SYSTEM SMALL LEAK. · P0133 - O2 SENSOR 1/1 SLOW RESPONSE (ADDITIONAL ENHANCEMENTS). · P2610 - PCM INTERNAL ENGINE OFF TIMER PERFORMANCE. · P1607 - PCM INTERNAL SHUTDOWN TIMER RATIONALITY. IN ADDITION TO THE ABOVE DTCS, THIS SOFTWARE RELEASE ALSO INCLUDES THE FOLLOWING: · A “CLUNK FEELING"" WHEN DEPRESSING THE GAS PEDAL AFTER A COASTING MANEUVER WHEN DECEL FUEL SHUT OFF (DFSO) IS ENABLED AND IS EXITING DURING PEDAL TIP-IN. · FALSE READING THAT THE ENGINE IS OVERHEATING BASED ON THE ENGINE OIL TEMP GAUGE READ OUT. · IMPROVED AMBIENT TEMPERATURE SENSOR DIAGNOSTICS DURING SUNLOAD. · DISABLE MISFIRE MONITOR WHEN P0335 (CRANKSHAFT POSITION SENSOR CIRCUIT) IS PRESENT. · ENGINE OIL TEMPERATURE GAUGE LEVEL RECALIBRATION TO AVOID THE MISPERCEPTION OF AN ENGINE OVERHEATING CONDITION."