Inspection of Temporary Faults

Inspection of Temporary Faults







Temporary faults often occur under certain conditions. So identifying those conditions helps to find possible causes. To find the conditions under which temporary faults occurred, you need to reproduce the faults after interviewing customers in detail about actual driving conditions, weather, frequency of occurence and fault phenomena.

Then determine if the faults were caused by vibration, temperature or other possible elements depending on the actual conditions identified. If vibration is suspected as a possible cause, inspect individual connectors as follows to check if the fault will occur:

Shake the connector gently in all four directions of the arrows as illustrated.
- Shake the wiring harness gently in all four directions of the arrows as illustrated.
- Wiggle each sensor or piece of equipment by hand.
- Gently shake the wiring harnesses near movable parts such as suspensions.

The inspection subjects include possible causes related to the diagnosis code outputs and faults, as well as the connectors and other parts in the inspection procedure.