DIAGNOSTIC ITEM 18: Diagnose When The Scan Tool Cannot Receive The Data Sent By Occupant Classification-ECU: Diagnosis
WARNING: This page is about a different car, the 2012 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
Required Special Tools:
- MB991223: Harness Set
- MB992006: Extra Fine Probe
- STEP 1. Check joint connector (CAN1) C-105, occupant classification-ECU connector D-39, D-39-2 and intermediate connector C-41 for loose, corroded or damaged terminals, or terminals pushed back in the connector. CAUTION: The strand end of the twisted wire should be within 10 cm (4 inches) from the connector. For details refer to SERVICE PRECAUTIONS .
Q: Are joint connector (CAN1) C-105, occupant classification-ECU connector D-39, D-39-2 and intermediate connector C-23 in good condition?
- YES: Go to Step 2.
- NO: Repair the damaged parts.
- STEP 2. Check the wiring harness between joint connector (CAN1) C-105 and occupant classification-ECU connector D-39-2 for open circuit. CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to SERVICE PRECAUTIONS .
- Disconnect joint connector (CAN1) C-105 and occupant classification-ECU connector D-39-2, and check the wiring harness.
- Check the wiring harness between joint connector (CAN1) C-105 (terminal 3) and occupant classification-ECU connector D-39-2 (terminal 24)
OK: Continuity exists (2 Ω or less)
- Check the wiring harness between joint connector (CAN1) C-105 (terminal 14) and occupant classification-ECU connector D-39-2 (terminal 25)
OK: Continuity exists (2 Ω or less)
Q: Is the wiring harness between joint connector (CAN1) C-105 and occupant classification-ECU connector D-39-2 in good condition?
- YES: Check the power supply circuit of the occupant classification-ECU. Refer to TROUBLE SYMPTOM CHART .
- NO: Repair the wiring harness between joint connector (CAN1) C-105 and occupant classification-ECU connector D-39-2.