Without Scan Tool

General Information Diagnosis
The troubles on TOD are classified into the group that can be identified by the lighting status of the TOD indicator lamps and those that can be recognized as abnormal phenomena of the vehicle by the driver.
The troubles that can be identified by the lighting status of the TOD indicator lamps are examined by the procedures "Diagnosis from Trouble Codes" and "Trouble Diagnosis Depending on The Status of TOO Indicator". The troubles that can be recognized as abnormal phenomena of the vehicle by the driver are examined by the procedure "Diagnosis from symptom".

Self-diagnosis





The control unit has a function of self-diagnosis. If a trouble occurs in the course of system startup, the control unit blinks the CHECK lamp and saves the trouble code.

Notice: If an intermittent fault occurs, the control unit stops blinking upon removal of the fault. The trouble code is saved to the control unit.

Indication Method of Trouble Code





^ Short-circuit terminal 8 of the self-diagnostic connector to GND to display the trouble code on the CHECK lamp.
^ If no trouble codes exist, code "12" is displayed continuously.





^ If trouble codes exist, code "12" is displayed three times, and the trouble codes, starting from the smaller code number, are displayed three times respectively.