Technical Description (Comment)

WCM determines that the abnormality is present, if it has detected discrepancy in the ignition switch level shown below ten consecutive times when WCM has received the CAN message (ignition switch position information) from ETACS-ECU with the ignition switch turned to the ON or START position.

B2101 

• Status of ignition switch: OFF position
• Ignition switch position information from the ETACS-ECU: ON

B2102 

• Status of ignition switch: ON position
• Ignition switch position information from the ETACS-ECU: OFF

When the ignition switch is turned ON, WCM transmits signal to the antenna. When the antenna is found faulty, WCM determines that the abnormality is present.