Scan Tool Testing and Procedures

Input Signal Inspection Points



When Using The Scan Tool
1. Connect the scan tool to the data link connection.

CAUTION: Always turn oft the ignition switch when connecting and disconnecting the scan tool.

2. If buzzer of the scan tool sounds once when a switch is operated (ON/OFF), the ECU input signal for that switch circuit system is normal.




When Using The Voltmeter
1. Use the special tool to connect a voltmeter between the ground terminal and the ETACS terminal of data link connector.
2. If the voltmeter indicator deflects once when a switch is operated (ON/OFF), the ECU input signal for that switch circuit system is normal.