When is the obd code mean? ECM has detected an incorrect IMRC signal- Outside expected range Symptoms – Engine Light ON (or Service Engine Soon Warning Light) FORD Related P1516 code 2001 FORD MUSTANG Electrical System:ignition:module 2002 FORD E SERIES Electrical System:ignition:module 2002 FORD F-150 Electrical System:ignition:module 2001 FORD MUSTANG 116200 Electrical System:ignition:module 2002 FORD…