FAILURE DIAGNOSIS
TNV DI Service Manual
1-125
DTCs (Diagnostic Trouble Codes) General Description
Diagnosis Description
1) Initial diagnosis
with the diagnosis
tool
• Check the fault indication.
• Check if a log-in to the diagnosis tool with the key switch OFF is available.
*For details of the method and the procedure of diagnosis, see P.1-199
2) Check of
connectors/wiring
• Before beginning your work, be sure to turn off the key switch.
• Check that the main relay is inserted to the harness connector correctly.
• Check that the wiring of the main relay is not disconnected or the insulation of
the wiring is not peeled.
3) Failure Diagnostic
Work
• Check the main relay contact for correct continuity.
• Check the resistance value of the main relay.
• Check the harness for correct continuity.
*For details of the method and the procedure of diagnosis, see P.1-199
TNV_DI_SM_A4-Troubleshooting.book 125 ページ 2007年11月15日 木曜日 午後5時27分