2014 CHEVROLET EXPRESS 4500 Electrical System Problems

MOTOR HOME / CAMPER BODY. PARKED FOR THE WINTER. PLUGGED IN BUT OCCASIONALLY RUN TO ENSURE BATTERIES ARE CHARGED. VEHICLE HAS 25,400 MILES ON IT. OUTSIDE AIR TEMPERATURE ABOUT 20 F. STARTED VEHICLE AND DASH DISPLAYS WARNINGS: ENGINE OPERATING AT REDUCED POWER AND ENGINE OVERHEATED A/C TURNED OFF. SCANNED THE ECM FOR CODES AND WAS ABLE TO CLEAR THESE TWO MALFUNCTION INDICATORS. THE TOOL ALSO REVEALED A PREMIANT CODE OF "P1682 (1/1), IGNITION 1 SWITCH CIRCUIT 2". MODULE # : $7E8 AND MODULE# $7EA. THIS CODE WILL NOT CLEAR UNTIL A REPAIR IS MADE. RESEARCH REVEALS THAT THIS IGNITION PROBLEM IS PREVALENT AMONG MANY MAKES AND MODELS OF CHEVROLET AND GM VEHICLES BETWEEN THE YEARS FROM 2014 TO 2018. AND COULD CAUSE THE VEHICLE TO STALL WHILE BEING DRIVEN. RESEARCH ALSO SHOWS THAT THIS PROBLEM GENERALLY OCCURS WHEN THE WEATHER IS WARMER. NOT WHEN IT IS AS COLD AS IT...

VEHICLE HAS STALLED BEFORE. SOMETIMES WHEN STARTING JUST SPINS OVER. SOMETIMES STARTS AND SAYS REDUCED ENGINE POWER. RUNS REALLY ROUGH. CAN WAIT ABOUT 10 MINUTES THEN RESTART AND RUNS OK. USUALLY ACTS UP ABOUT EVERY 20 STARTS. THIS IS A 2014 WITH ABOUT 14000 MILES. HAS STALED WHEN BACKING UP BEFORE.