STEP 1. Scan tool (M.U.T.-IIISE) other system DTC.
STEP 2. Check the battery.
STEP 3. Check the charging system.
STEP 4. Voltage measurement at AWC-ECU connector
STEP 5. Check of open circuit, and short circuit in AWDF line between AWC-ECU connector and ETACS-ECU connector.
STEP 6. Scan tool (M.U.T.-IIISE) data list.
STEP 7. Check of open circuit in GND1 line between AWC-ECU connector and body ground.
STEP 8. Check of short circuit in SOL+ line between electronic control coupling solenoid connector and AWC-ECU connector.
STEP 9. Check of short circuit in SOL- line between electronic control coupling solenoid connector and AWC-ECU connector.
STEP 10. Check of the electronic control coupling solenoid
STEP 11. Scan tool (M.U.T.-IIISE) data list.