Without Scan Tool

WHEN USING THE VOLTMETER





<1993 models>
1. Connect an analog voltmeter across the diagnostic output terminal and ground terminal of the data link connector.
2. Place the ignition switch and main switch in the ON position.
3. Read the diagnostic trouble code on the basis of the deflection of the pointer of the voltmeter.
4. Refer to the diagnostic chart and repair the defective point.
5. Clear the diagnostic trouble codes in the same way as when a scan tool is used.






Using the special tool, connect a voltmeter to the diagnostic output and ground terminals of the data-link connector, and read the diagnostic trouble code on the basis of the deflection6 of the pointer.





NOTE:
1. The diagnostic trouble code is displayed when the vehicle is driven with the main switch on but not at the constant speed.
2. Even if the problem represented by the code number marked * occurs during cruise control operation, the cruise control mode will not be canceled.
3. After erasing diagnostic trouble code memory, turn on the control unit power supply again, and the on-board diagnostic output code displayed will be "NORMAL!!" or the pattern shown in the illustration at left, regardless of whether the system is in normal or abnormal if the control unit power supply is normal.