TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT; Description; Diagnostic Procedure
EF & EC-7070prose procedureDescription
CG10, CGA3
Intermittent incidents (I/I) may occur. In many cases, the problem resolves itself (the part or circuit function returns to normal without intervention). It is important to realize that the symptoms described in the customer's complaint often do not recur on DTC (1st trip) visits. Realize also that the most frequent cause of I/I occurrences is poor electrical connections. Because of this, the conditions under which the incident occurred may not be clear. Therefore, circuit checks made as part of the standard diagnostic procedure may not indicate the specific problem area.
COMMON I/I REPORT SITUATIONS
Common I/I report situations
II
SituationThe CONSULT-II is used. The SELF-DIAG RESULTS screen shows time data other than "0" or "1".
III
SituationThe symptom described by the customer does not recur.
IV
Situation(1st trip) DTC data does not appear during the DTC CONFIRMATION PROCEDURE.
VI
SituationThe TROUBLE DIAGNOSIS for PXXXX does not indicate the problem area.
Diagnostic Procedure
Step 1 — INSPECTION START
- 1Erase (1st trip) DTCs. Refer to "HOW TO ERASE EMISSION-RELATED INFORMATION" (EC-7036).
- 2GO TO 2.
Step 2 — CHECK GROUND TERMINALS
- 1Check ground terminals for corroding or loose connection. Refer to "Circuit Inspection", "GROUND INSPECTION" in GI section.
- 2OK or NG: - OK → GO TO 3. - NG → Repair or replace.
Step 3 — SEARCH FOR ELECTRICAL INCIDENT
- 1Perform "Incident Simulation Tests" in GI section.
- 2OK or NG: - OK → GO TO 4. - NG → Repair or replace.
Step 4 — CHECK CONNECTOR TERMINALS
- 1Refer to "How to Check Enlarged Contact Spring of Terminal" in GI section.
- 2OK or NG: - OK → INSPECTION END - NG → Repair or replace connector.
See also
EC-7036