Turn the ignition switch OFF. Connect the special tool (Jumper) to the FSL1i connector (A). Check resistance between the No. 10 and No. 11 terminals of the U1o connector. There should be 1 ohm or less. U1o CONNECTOR Wire side of female terminals Is the resistance as specified? YES - Faulty left front sensor or SRS unit. Replace the left front sensor; if the problem is still present, replace the SRS unit. NO - Faulty engine compartment wire harness or dashboard wire harness B; replace the faulty harness.