STEP 1. Check KOS-ECU connector C-10 and ETACS-ECU connector C-417 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
STEP 2. Check the wiring harness between the KOS-ECU connector C-10 (terminal No. 7, 8) and the ETACS-ECU connector C-417 (terminal No. 5, 10) and between the KOS-ECU connector C-10 (terminal No. 4) and the body ground.
- Check the power supply line for open and short circuit, and check the ground line for open circuit.
note | Also check joint connector (2) C-04, joint connector (4) C-108, grounding connector C-01 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If joint connector (2) C-04, joint connector (4) C-108, grounding connector C-01 is damaged, repair or replace the damaged component(s) as described in GROUP 00E, Harness Connector Inspection . |
Is the wiring harness between KOS-ECU connector C-10 (terminal No. 7, 8) and the ETACS-ECU connector C-417 (terminal No. 5, 10) and between the KOS-ECU connector C-10 (terminal No. 4) and the body ground in good condition?
Go to Step 3. The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary.