Several Signals Check (Response Code 3-1-1)

Code 3-1-1 is obtained when control unit receives several signals simultaneously. This situation is usually caused by a short circuit in one or more circuits.
Most likely areas of fault when a Code 3-1-1 is obtained include signal from brakelight circuit (control unit terminals No. 7 and 10), neutral start switch (control unit terminal No. 2) and selector (control unit terminals No. 11, 6, 4 and 3). See Figure .