STEP 1. Check hood latch switch connector A-49 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
STEP 2. Check the hood latch switch.
STEP 3. Check the ground circuit to the hood latch switch. Test at hood latch switch connector A-49.
STEP 4. Check the wiring harness between hood latch switch connector A-49 (terminal 1) and ground.
Check the ground wires for open circuit.Is the wiring harness between hood latch switch connector A-49 (terminal 1) and the ground in good condition?
No action is necessary and testing is complete. 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. Check that the input signal of hood latch switch is normal.
STEP 5. Check ETACS-ECU connector C-410 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
STEP 6. Check the wiring harness between driver's door switch connector A-49 (terminal 2) and ETACS-ECU connector C-410 (terminal 12).
Check the input lines for open circuit and short circuit.Is the wiring harness between driver's door switch connector A-49 (terminal 2) and ETACS-ECU connector C-410 (terminal 12) in good condition?
Replace the ETACS-ECU. Check that the input signal of hood latch switch is normal. 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. Check that the input signal of hood latch switch is normal.