Malfunction Threshold

One of these symptoms occurs:

• The AFVB1 terminal voltage is 0.182 V or less for at least 0.5 second.
• The AFVB1 terminal voltage is 3.6 - 4.89 V and the voltage between the AFVB1 and the AFCB1 terminal is 0.15 V or less for at least 0.5 second.